Form 8-K

8-K — i-80 Gold Corp.

Accession: 0001193125-26-397273

Filed: 2026-09-22

Period: 2026-09-21

CIK: 0001853962

SIC: 1040 (GOLD & SILVER ORES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — d152188d8k.htm (Primary)

EX-99.1 (d152188dex991.htm)

EX-99.2 (d152188dex992.htm)

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8-K

8-K (Primary)

Filename: d152188d8k.htm · Sequence: 1

8-K

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report: September 21, 2026 (Date of earliest event reported)

i-80 GOLD CORP.

(Exact Name of Registrant as Specified in Its Charter)

British Columbia

001-41382

N/A

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification)

150 York Street, Suite 1802, Toronto, Ontario M5H 3S5

(Address of principal executive offices) (Zip Code)

(775) 525-6450

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a -12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d -2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e -4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange

on which registered

Common Shares

IAUX

NYSE American LLC

Warrants to Purchase Common Shares

IAUX.WS

NYSE American LLC

Indicate by check mark

Common Shares

IAU

The Toronto Stock Exchange

Warrants to Purchase Common Shares

IAU.WT.U

The Toronto Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01.

Regulation FD Disclosure

On September 21, 2026, i-80 Gold Corp. (the “Company”) issued a press release titled “i-80 Gold Announces Positive Feasibility Study and Initial Mineral Reserve for Granite Creek Underground; After-Tax NPV(5%) of $118 Million at $2,750/oz Au Increasing to $598 Million at $4,500/oz Au”. On September 21, 2026, the Company also issued a press release titled “i-80 Gold Announces Initial Assay Results From Mineral Point Open Pit Nevada Gold Project in Nevada Including a Step-Out Hole of 1.33 g/t Au and 39.2 g/t Ag over 225.6 Meters”. A copy of the press releases are attached as Exhibits 99.1 and 99.2, respectively, to this Current Report on Form 8-K and are incorporated herein by reference.

The information contained in this Item 7.01 and Exhibits 99.1 and 99.2 attached hereto is being furnished and shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

On the morning of September 22, 2026, the Company will post an updated corporate presentation on the portfolio section of the Company’s website at https://www.i80gold.com/granite-creek-underground/.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits

Exhibit

No.

Description

99.1

Granite Creek News Release, dated September 21, 2026

99.2

Mineral Point News Release, dated September 22, 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: September 21, 2026

i-80 GOLD CORP.

By:

/s/ Ryan Snow

Name:

Ryan Snow

Title:

Chief Financial Officer

EX-99.1

Filename: d152188dex991.htm · Sequence: 2

EX-99.1

Exhibit 99.1

i-80 Gold Announces Positive Feasibility Study and Initial

Mineral Reserves for

Granite Creek Underground; After-Tax NPV(5%) of $118 Million at $2,750/oz Au

Increasing to $598 Million at $4,500/oz Au

Unless otherwise stated, all amounts referred to herein are in U.S. dollars.

TORONTO, ON, September 21, 2026 – i-80 GOLD CORP. (NYSE:IAUX) (TSX:IAU)

(“i-80 Gold”, or the “Company”) is pleased to announce the results of a feasibility study for the high-grade Granite Creek underground gold project (“Granite Creek

Underground” or the “Project”). The Project is situated at the intersection of the highly prolific Battle Mountain-Eureka and Getchell gold trends in northern Nevada, USA. Granite Creek Underground is currently ramping up

production and is expected to produce between 30,000 to 40,000 ounces of gold in 2026.

The results announced in this press release are supported by two

technical reports prepared for Granite Creek Underground: (1) a technical report prepared under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) which, in the opinion of the qualified persons, constitutes a feasibility study under NI 43-101 (the “NI 43-101

FS” or the “FS”); and (2) a technical report summary prepared under Subpart 1300 of Regulation S-K (“S-K 1300”) which, in the opinion

of the qualified persons, constitutes a pre-feasibility study under S-K 1300 (the “S-K 1300 PFS” and, together with

the NI 43-101 FS, the “Technical Reports”). The Technical Reports are based on the same underlying technical and economic data and analysis but have different study classifications resulting from

differences in the substantive criteria applied under each of S-K 1300 and NI 43-101. As a result, the same body of technical work satisfies the definition of a

feasibility study under NI 43-101 but constitutes a pre-feasibility study under S-K 1300. The mineral resource and mineral

reserve estimates and the project economics presented in the Technical Reports are derived from the same underlying technical and economic work.

“The Granite Creek Underground Feasibility Study outlines robust project economics based on a significantly expanded mineral resource base, increased

production rate, and longer mine life relative to the preliminary economic assessment (“PEA”)(1) published in March 2025, despite over a year of mining depletion and only a modest

drilling program focused primarily on infill drilling to support the FS,” stated Richard Young, President & CEO. “The drill program successfully delineated and expanded the mineralized zones, demonstrated continuity within the

mineralized structures, and identified a number of additional prospective targets that suggest the potential for further mineral resource growth. The Project is expected to be a key source of feed for our wholly owned Lone Tree autoclave and carbon-in-leach processing plant for many years to come, together with mineralized material from Archimedes underground where production mining is expected to commence later

this year. With the Lone Tree Plant anticipated to be operational by the end of 2027, these assets are expected to support i-80 Gold’s transformation into a Nevada-focused

mid-tier producer generating strong free cash flow.”

Granite Creek Underground Feasibility Study

Highlights

•

Initial Proven and Probable Mineral Reserves of 2.20 million tonnes (“Mt”) grading 7.87 grams

per tonne (“g/t”) gold (“Au”) containing 556,500 ounces (“oz”) of gold (“Au”).

•

Measured and Indicated underground Mineral Resources increased by 229% to 3.73 Mt grading 7.17 g/t Au containing

859,500 oz Au, compared to the PEA(1); Inferred Mineral Resources decreased by 38% to 0.89 Mt grading 7.06 g/t Au containing 202,800 oz Au as the infill program converted a portion of Inferred

Mineral Resources into the higher classification categories.(2)

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•

Mine life of approximately 8.5 years (the “LOM”) supported by successful South Pacific Zone drill

results and improved resource definition, after accounting for 15 months of mining since the PEA.(3)

•

At a base case gold price of $2,750/oz, total undiscounted after-tax cash

flow of $153 million with an after-tax net present value(5%) (“NPV”) of

$118 million.(3)

•

At an illustrative spot gold price sensitivity of $4,500/oz, total undiscounted

after-tax cash flow of $744 million with an after-tax NPV(5%) of $598 million.(3)

•

At an illustrative gold price sensitivity of $6,000/oz, total undiscounted

after-tax cash flow of $1.2 billion with an after-tax NPV(5%) of $985 million.(3)

•

Annual gold production of approximately 75,000 oz for the five-year period from 2028 to 2032, following

completion of the Company’s Lone Tree Plant refurbishment, representing an increase of approximately 15,000 oz Au per year compared to the PEA.(1)

•

Estimated cash costs(4) of $1,827/oz and all-in-sustaining costs (“AISC”)(4,5) of $1,915/oz for the five-year steady-state period following

commissioning of the Lone Tree Plant (2028 to 2032), excluding the allocated Lone Tree Plant refurbishment capital.

•

Lower sustaining capital of $83 million compared to the

PEA,(1) despite increased development at depth, higher planned tonnage, and additional equipment following successful South Pacific Zone drilling, as well as an expanded infill drilling program

and water treatment infrastructure.

•

Optimized processing strategy whereby refractory and oxide ores are expected to be processed by a third-party

through mid-2027, followed by approximately six months of stockpiling prior to the planned fourth quarter 2027 commissioning of the Company’s wholly owned Lone Tree autoclave and carbon-in-leach plant at significantly lower processing costs.

•

Ongoing 2026 infill and step-out drilling supports continued reserve

development and resource growth in the South Pacific, Rangefront, Otto and Ogee zones, with the high-grade portion of CX Zone targeted for further evaluation as part of an anticipated extensive multi-year drill program planned to commence in 2027.

Table 1: Granite Creek Underground FS Key Operating and Financial Metrics

Unit

Project Economics

Gold Price

$/oz

2,750

Pre-Tax NPV(5%)(3)

138

After-Tax NPV(5%)(3)

118

After-Tax Cash Flow(3)

153

Production Profile

Mine Life

years

8.5

Total Ore Mined

000s tonnes

2,172

Mined Ore Grade

g/t Au

7.88

Total Stockpile Processed

000s tonnes

Total Ore Processed

000s tonnes

2,198

Gold Grade Processed

g/t Au

7.87

Total Gold Contained

000s oz

556

Average Gold Recovery

Total Gold Recovered

000s oz

485

Average Annual Gold Production (2028-2032)

000s oz

75.1

Average Annual Gold Production (LOM)

000s oz

53.9

Unit Operating Costs

LOM Operating Cost

Mining (ore and waste)

$/t mined

182

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Processing (refractory and oxide)

$/t milled

122

Transportation & Power Costs

$/t milled

Surface Op Costs

$/t mined

G&A, Taxes and Royalties(7)

$/t milled

Total Cash Costs - LOM(4)

$/oz

2,076

Total Cash Costs - (2028-2032)(4)

$/oz

1,827

All-in Sustaining Costs - LOM(4,5)

(Excl. Lone Tree Refurbishment Capital)

$/oz

2,273

All-in Sustaining Costs - (2028-2032)(4,5)

(Excl. Lone Tree Refurbishment Capital)

$/oz

1,915

Total Capital Costs

Sustaining Capital

82.9

Lone Tree Autoclave Capital Allocation

49.3

Closure Costs

12.7

Total Capital & Closure Costs

144.9

For detailed metrics presented on an annual basis, see the Granite Creek Underground Detailed Cash Flow Model in Table 1

in the Appendix.

“The FS incorporates several improvements relative to the PEA,(1)

including an optimized mine design, improved geological definition, increased mining flexibility, and additional working faces particularly within the Ogee Zone,” stated Paul Chawrun, EVP & COO. “Successful infill and definition

drilling within the South Pacific Zone closed mineralized gaps, improved continuity, and upgraded the existing mineral resources into higher-confidence categories, supporting a larger mineable inventory and longer mine life following over a year of

mining. Improved geological definition also increased the number of available ore faces and increased total ore mined, contributing to higher planned production and reduced waste development. These improvements are further supported by ongoing

infrastructure upgrades, including increased water treatment and dewatering capacity, and ventilation optimization.”

Mr. Chawrun added,

“The Study also incorporates an optimized processing strategy which includes stockpiling the Project’s sulfide and oxide ore ahead of the planned commissioning of the Lone Tree Plant in the fourth quarter of 2027. This strategy is

expected to increase the amount of Granite Creek ore processed at the Lone Tree Plant at more favorable processing costs, while reducing reliance on third-party processing.”

Initial Mineral Reserve Estimate and Updated Mineral Resource Estimate

The updated underground mineral resource estimate included in the FS incorporates approximately 36,470 meters of drilling from 164 core holes conducted between

2023 through the end of 2025, relative to the resource estimate that formed the basis of the PEA published in March 2025.(1) Numerous step-out drill holes

have resulted in a larger mineralized envelope, while infill drilling increased definition and confidence in the mineral resource and supported conversion of a majority of the resource to mineral reserves. Relative to the PEA mineable resources, and

accounting for mining depletion in 2025 and a portion of 2026, approximately 65,000 ounces have been added to mineral inventory (see Figures 1 and 2).(3)

The FS includes an initial mineral reserve estimate of 556,500 oz Au at 7.87 g/t Au in the proven and probable categories (see Table 2). The updated

underground mineral resource estimate includes 859,500 oz Au at 7.17 g/t Au in the measured and indicated categories, and an additional 202,800 oz at 7.06 g/t Au in the inferred category (see Table 3).(2) These mineral resources are hosted within the Ogee, Otto and South Pacific zones (see Figures 3 and 4). Relative to the PEA,(1) measured and

indicated resources increased by 229%, while inferred resources decreased by 38% as material was converted into higher classification categories.

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The resource estimate was prepared using stope optimization software which is in line with industry

recommended best practices for the assessment of the in-situ mineralization which satisfies the reporting criteria of the Reasonable Prospects for Eventual Economic Extraction (RPEEE). Additionally, a more

conservative approach was applied to establish the creation of grade shell domains to match current mining methods, resulting in lower grades than in the previously published PEA. These updated grades are in line with the average grade currently

mined at Granite Creek and are believed to more accurately reflect the expected grades of the orebody.

Exploration

The ongoing 2026 exploration program includes a combination of infill drilling to support continued reserve development for optimized ongoing mine operations

and step-out drilling to expand the current and known mineralization within the South Pacific Zone, which remains open to the north and at depth, and the Rangefront, Otto, and Ogee zones.

Additional near-mine exploration targets include the CX Zone beneath the historical CX pit, which is not currently included in the underground mineral

resource. Previous drilling in the CX Zone includes high-grade intercepts from legacy holes, including 18.0 g/t Au over 9.1 m in hole HPR 078 and 15.3 g/t Au over 9.1 m in RHC-1763, and i-80 hole of 36.4 g/t Au over 9.1 m in iGM21-06.(9) A successful drill program in the CX Zone has the potential to add

high-grade ounces to the mineral resource and near-term mine plan. The Company intends to evaluate the high-grade portion of the CX Zone as an underground target as part of an anticipated extensive multi-year drill program planned to commence in

2027. Multiple near-mine targets are still to be evaluated over a multi-year drill program with the potential to extend the mine life.

Table 2: Granite

Creek Underground Mineral Reserve Estimate as of March 31, 2026(2)

Mineral Reserves

Classification

Domain

Tonnage

(000s tonnes)

Au Grade

(g/t)

Contained

(000s oz)

Proven

Ogee

9.34

21.2

Otto

171

7.04

38.7

South Pacific

11.21

14.5

Stockpile

7.33

6.2

Total

308

8.13

80.6

Probable

Ogee

7.95

22.4

Otto

366

6.70

78.8

South Pacific

1,437

8.11

374.7

Total

1,890

7.83

475.9

Proven and Probable

Ogee

158

8.57

43.6

Otto

537

6.81

117.6

South Pacific

1,477

8.19

389.2

Stockpile

7.33

6.2

Total

2,198

7.87

556.5

Notes:

All figures are rounded to reflect the relative accuracy of the estimates. Totals may not sum due to rounding.

Mineral Reserves have been stated on the basis of a mine design, mine plan, and economic model.

Mineral Reserves are reported using a stope center of gravity (“CoG”) range of 4.42 g/t (0.13

oz/st) Au – 6.41 g/t (0.19 oz/st) Au and an incremental processing CoG range of 1.51 g/t (0.04 oz/st) Au – 2.91 g/t (0.08 oz/st) Au depending on the processing method. The CoG calculations assume a US$2,500/oz Au price, and 60% to 92%

metallurgical recovery depending on the processing method applied.

Operating costs include mining (US$190.18/tonne), processing (US$59.94/tonne to US$131.13/tonne), G&A

(US$22.29/tonne), shipping costs (US$16.04/tonne). Additionally, a 6% royalty and 0.75% excise tax are applied, along with treatment/refinery charges of US$1.85/oz Au.

The reserves are mined using the underhand drift and fill method with cemented waste rock backfill. Mining

dilution of 10% is included in the reserve at zero grade.

Stockpile mineral reserves reflect ore mined and placed on surface stockpiles prior to the effective date of

the FSand not yet processed.

The Mineral Reserves were estimated by Anton Chan, B.Eng, M.Sc., P.Eng, MMSAQP (#01546QP) of SRK Consulting,

U.S. (Inc.), a Qualified Person under NI 43-101 and S-K 1300.

All reported underground mineral reserves are fully attributable to the Company.

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Table 3: Granite Creek Underground Mineral Resource Estimate as of March 31, 2026.(2)

Mineral Resource Estimate

Classification

Zone

Tonnage

(000s tonnes)

Attributable

Tonnage

(000s tonnes)

Au Grade

(g/t)

Contained Au

(000s oz)

Attributable

Contained Au

(000s oz)

Measured

Ogee

231

7.88

58.6

58.5

Otto

310

6.69

66.6

South Pacific

9.85

20.7

Total

606

7.49

145.9

145.8

Indicated

Ogee

322

321

7.06

73.0

72.9

Otto

746

6.26

150.2

South Pacific

2,055

7.42

490.4

Total

3,122

7.11

713.6

713.5

Measured & Indicated

Ogee

553

552

7.40

131.6

131.4

Otto

1,056

6.39

216.8

South Pacific

2,120

7.50

511.1

Total

3,729

3,728

7.17

859.5

859.3

Inferred

Ogee

6.70

8.3

Otto

425

7.63

104.4

South Pacific

429

418

6.53

90.1

87.4

Total

893

882

7.06

202.8

200.1

Notes:

Mineral Resources, which are not Mineral Reserves, do not have demonstrated economic viability. The estimate of

Mineral Resources may be materially affected by environmental, permitting, legal, title, market or other relevant issues. The deposit has been classified as Measured, Indicated and Inferred based on confidence in the geological model and drill

spacing. The quantity and grade of reported Inferred resources are uncertain in nature, and there has not been sufficient work to define these Inferred Mineral Resources as Indicated or Measured resources. There is no certainty that any part of a

mineral resource will ever be converted into mineral reserves.

Mineral Resources are reported on an inclusive basis with units reported in in Metric Tonnes, grade is reported

in grams/tonnes, and metal in 000’s troy ounces.

Mineral Resources are reported within mineable stopes which have been defined based on metal price

assumptions,* variable metallurgical recovery assumptions, mining costs, processing costs, shipping, G&A costs. Metal Pricing is based on Gold (US$3,000 /oz). Other key assumptions include:

Mining Costs (US$/t 190.18);

Autoclave Processing Cost (US$/t 131.13), Low-grade Oxide (US$/t 59.94)

Autoclave Recoveries ranging 77.6%-93.4% (average 87.6%) and Oxide

recoveries ranging 60.0%-87.4% (average 68.9%);

Shipping Costs (US$/t 16.04) and G&A Costs (US$/t 22.29);

Totaling US$/t 281.45 – 359.64 for underground mining and processing;

Based on the variable recoveries an average cut-off grade of 3.75 -

9.81 g/t (0.286 oz/st) has been used reporting.

Mineral Resources have been depleted for previous underground mining activity, and reported on an attributable

basis.

Mineral Resources are based on validated data, which have been subjected to quality analysis/quality control

(QA/QC) analysis, using capped, composited samples at 2 m (5ft) intervals. Estimation has been completed using a combination of OK and IDW estimation methodologies and classified based on confidence in the underlying data and drill spacing. Mineral

resource tonnages have been rounded to reflect the precision of the estimate.

The Mineral Resources were estimated by Benjamin Parsons, BSc, MSc Geology, MAusIMM (CP#222568) of SRK

Consulting, U.S. (Inc.), a Qualified Person under NI 43-101 and S-K 1300.

Rounding of some figures may lead to minor discrepancies in totals.

Reported underground and open pit mineral resources for the Granite Creek Property are 100% attributable to the Company with the exception of a fee parcel and

certain unpatented mining claims, which resources are 91.67% attributable to the Company.

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Figure 1: PEA vs FS Mineral Resource Comparison(3)

Note to chart above: The FS applies a base case gold price assumption of $2,750/oz, compared with $2,175/oz in the PEA.(1)

Figure 2: Granite Creek Underground Mineral Resource Reconciliation (PEA to FS)(3)

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Figure 3: Granite Creek Underground Project Plan View

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Figure 4: Granite Creek Underground Longitudinal Section

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Economic Analysis

The Project leverage to the gold price is included in Table 4, which outlines the after-tax valuation in relation to

fluctuations in the gold price. These selected gold price cases are illustrative sensitivities and not forecasts, and hold the reserve estimate, mine plan and other material assumptions constant.

Table 4: Granite Creek Underground Gold Price Sensitivity After-Tax Analysis

Gold Price ($/oz)

$2,500

$2,750

(Base Case)

$3,000

$4,000

$4,500

$5,000

$5,500

$6,000

After-Tax NPV5%

118

193

467

598

727

856

985

Undiscounted Cash Flow

153

246

584

744

904

1,063

1,223

Net Profit Interest(7)

114

2028-2032 AISC(4,5)

(Excl. Lone Tree Plant Refurbishment Capital)

/oz

2,254

2,273

2,293

2,430

2,512

2,595

2,678

2,761

LOM AISC(4,5)

(Excl. Lone Tree Plant Refurbishment Capital)

/oz

1,896

1,915

1,935

2,071

2,161

2,251

2,340

2,430

Project Overview

Granite

Creek Underground is a fully permitted, constructed and operating gold mine currently ramping up towards steady-state production. It is the first brownfield project to be redeveloped under the Company’s development plan. The broader Granite

Creek property (the “Property”) also hosts the Granite Creek open pit oxide deposit adjacent to the underground mine, which is currently advancing through early-stage permitting and technical work. Situated in the Potosi mining district,

the Property lies approximately 43 kilometers northeast of Winnemucca, within Humboldt County, Nevada at the intersection of the highly prolific Battle Mountain-Eureka and Getchell gold trends. Adjacent to the Property is Nevada Gold Mines’

Turquoise Ridge Complex where Barrick Mining Corporation has reported approximately 19.3 million ounces in measured and indicated mineral gold resources and 2.4 million ounces in inferred mineral gold resources(8) (see Figure 5).

Since 1980, the Property has produced approximately one million ounces of gold from

both underground and open pit mining. The current underground minerals resources are primarily hosted adjacent to, but independent of, the past-producing open pits on the Property. Additionally, the Property hosts the Mag and CX oxide open pit

resources.

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Figure 5: Regional Map of i-80 Gold Assets in Northern Nevada

Geology and Mineralization

Mineralization at Granite Creek Underground is Carlin-type, with gold hosted in fine-grained arsenian pyrite similar to the nearby deposit at the Turquoise

Ridge Complex. The primary host rocks at the Project are interbedded shale, siltstone, and limestone of the Ordovician Comus Formation. Higher-grade mineralization is found underground, proximal to the Cretaceous Osgood Mountains stock where the

Comus Formation has been metamorphosed to marble and hornfels. Mineralization is strongly structurally controlled, typically by inverted thrust faults trending north to northeast. The Company has conducted significant exploration since acquiring the

property in 2021 which led to the discovery of the South Pacific Zone, a northeastern extension of the existing underground deposit.

Mining

Granite Creek Underground is currently ramping up production and is expected to achieve commercial production in late 2026. The mine currently produces

approximately 540 tonnes of ore per day and is operated by a local mining contractor with more than three decades of underground mining experience in northern Nevada. The mining rate is expected to rise to approximately 900 tonnes per day at full

production supporting higher gold production. The FS outlines an updated mine life of approximately 8.5 years with annual steady state gold production of approximately 75,000 ounces. The FS incorporates the Project’s current operating costs,

outlined in Table 5 and the Appendix.

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Underground access is through portals located in the north wall of the CX pit. The main decline provides

personnel and equipment access to all areas of the mine and can accommodate 30-ton haul trucks. Mining will be conducted using underhand drift and fill methods with cemented waste rockfill optimized for the

Project’s ground conditions. Production drifts are 15 feet x 15 feet with a 14% decline. Mining of the Ogee and Otto zones are between the 4,790-foot level and 4,150-foot level and the decline to the South Pacific Zone is developed to the

3,950-foot level. Fresh air comes in from a fresh air portal at the bottom of the CX pit and is connected to the various workings through raises. The haulage ramp serves as an exhaust drift.

Production drift widths will be maintained at 15 feet or less to minimize dilution and enhance recovery. Underhand drift and fill mining is well suited for

the ground conditions at the Project and allows for a high degree of selectivity, productivity, and safety for mine personnel. This mining method also results in backfill with superior geotechnical quality compared to the in-situ rock.

Processing

Metallurgical testing has demonstrated that the Ogee, Otto and South Pacific zones at Granite Creek Underground contain predominantly single refractory

material and require an oxidation process to increase gold extraction using cyanidation. While samples responded to both alkaline and acid pressure oxidation, significant metallurgical testing has demonstrated that an acidic autoclave environment

achieved higher sulfide oxidation and superior gold recovery rates. These results confirm that the Project’s ore can be processed via the Lone Tree Plant’s acid pressure oxidation (“POX”) conditions once the Plant is

recommissioned.

The FS incorporates an updated processing strategy that assumes third-party toll milling arrangements and associated over-the-road trucking costs through to mid-2027. To maximize the proportion of Granite Creek Underground sulfide material processed at

the Company’s Lone Tree Plant and reduce reliance on third-party processing, the mine plan assumes the stockpiling of sulfide refractory material beginning approximately six months prior to the planned commissioning of the Company’s

wholly owned Lone Tree Plant in late 2027. Beginning in 2028, the FS incorporates the anticipated lower processing costs associated with hauling refractory ore and processing it through the Lone Tree Plant.(6) The acidic environment has higher operating costs versus alkaline, however, the higher costs are mostly offset by higher recoveries. The PEA envisaged a combination of acidic and alkaline operating

environment.

Oxide mineralization is present in all zones within all deposits. Mine operations to date have encountered a higher proportion of oxide ore

than what has been defined in the resource estimate and FS. The oxide mineralization not accounted for in the FS presents an opportunity to process this material in the Lone Tree Plant throughout the LOM with lower overall operating costs. Work is

underway to determine the cost benefit. The FS only incorporates a small component of oxide mineralization in the Ogee Zone. Oxide ore will be sold to a third party under an existing sales agreement until

mid-2027 and then stockpiled similarly to the refractory ore. The oxide ore will be processed directly by the carbon-in-leach

(“CIL”) circuit at the Lone Tree Plant, bypassing the POX circuit.

Ore at Granite Creek Underground is screened before shipping to remove

oversize material, reducing the tonnes shipped and processed while increasing the grade delivered for processing. The potential economic benefits of this practice continue to be evaluated and were not incorporated into the FS, representing a

potential opportunity for future optimization.

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A LOM processing schedule is illustrated in Figure 6.

Table 5: LOM Mining and Processing Unit Costs

LOM Mining

and Processing Unit Costs

Mining (ore and waste)

/t mined

182

Surface Op Costs

/t mined

Processing - Lone Tree Autoclave

/t milled

105

Processing - Lone Tree Oxide

/t milled

Transportation

/t milled

Power Costs

/t milled

G&A

/t milled

Taxes and Royalties(7)

/t milled

Total

/t milled

458

Note to table above:

Numbers

may not add up due to rounding and differences in $/t mined vs $/t milled.

Figure 6: LOM Annual Processing Schedule

Hydrology Update

Water inflow volumes to the mine have stabilized and continue to be managed well using the current underground pumping system, which presently operates near

capacity. Work on an enhanced pumping system, that includes expanded sumps at lower levels and higher-capacity pumps, continues to advance. Pump installation will continue throughout the remainder of 2026 to increase overall water discharge capacity

as the mine progresses at depth.

The current dewatering model estimates residual passive inflow into Granite Creek will exceed 2,500 to 2,700 gallons per

minute until the additional dewatering wells advance below the current workings. The second water treatment plant has been constructed and is currently in commissioning, which is expected to increase surface water treatment capacity by approximately

3,500 gallons per minute to support the Company’s long-term groundwater management objectives.

Capital Costs

LOM sustaining capital is estimated at $82.9 million, including all surface and underground development. A Lone Tree Plant refurbishment capital

allocation of $49.3 million, as well as a closure and reclamation costs of $12.7 million are also included in the total FS LOM capital cost (see Table 6). The Lone Tree autoclave refurbishment capital allocation of $49.3 million has

been derived using a $25.97/tonne charge multiplied by the estimated total potential tonnage expected to be processed at the Lone Tree Plant (1.9 Mt) in the future from Granite Creek Underground.

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Table 6: LOM Capital Cost Summary

LOM Capital

($Millions)

Underground Mine Capital

60.7

Surface Mine Capital*

22.2

Sustaining Capital

82.9

Lone Tree Plant Refurbishment Capital Allocation

49.3

Closure and Reclamation Costs

12.7

Total Capital

144.9

Surface mine capital includes approximately $5.6 million of capitalized costs in connection with

underground mine development.

Figure 7: LOM Annual Cash Flow at a Gold Price of $2,750/oz.

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Figure 8: Granite Creek Underground LOM Annual Cash Flow at a Gold Price of $4,500/oz.

Operating Costs

During the five years of steady-state production following the commissioning of the Company’s wholly-owned Lone Tree Plant (2028 to 2032), the FS

estimates cash costs(4) of $1,827/oz Au and all-in sustaining costs(4,5) of $1,915/oz Au (see Table 7).

During the LOM, the FS estimates cash costs(1) of $2,076/oz Au and

all-in sustaining costs(4,5) of $2,273/oz Au, which includes the earlier period of third-party toll milling prior to Lone Tree’s commissioning and the

final two years when production is currently expected to wind down (see Table 8).

Table 7 outlines the operating costs during the first five years of

steady-state production following the commencement of processing at the Lone Tree Plant, excluding the earlier years of third-party toll processing and the final two years of the LOM.

The annual cash waterfall above in Figures 7 and 8 demonstrates the importance of the planned refurbishment of the Company’s Lone Tree Plant and the

ending of third-party toll milling, which is expected to increase production and cash flow beginning in 2028 once commissioned. Figure 9 illustrates operating costs over the Project’s estimated production profile.

Table 7: Total and Unit Operating Cost Summary: Five-Year Steady-State Period Following Lone Tree Plant Commissioning

2028 - 2032

Total Costs

($Millions)

Unit Cost

($/t)

Cost per Ounce

($/oz Au)

Cost Analysis

(Base Case Scenario of $2,750/oz Au)

Mining (Ore and Waste)

271

172/t mined

721

Processing (Refractory and Oxide)

177

104/t milled

470

Transportation & Power Costs

29/t milled

129

Surface Op Costs

49/t mined

206

G&A, Taxes and Royalties(7)

113

67/t milled

301

Total Operating Cost/Cash

Costs(4)

686

405/t milled

1,827

Sustaining Capital

20/t milled

Lone Tree Plant Refurbishment Capital Allocation

26/t milled

108

Closure Costs

0/t milled

All-in Sustaining Costs(4)

760

449/t milled

2,023

All-in Sustaining Costs(4,5)

(Excluding Lone Tree Plant Refurbishment Capital)

720

425/t milled

1,915

Notes to table above:

Numbers

may not add up due to rounding and differences in $/t mined vs $/t milled.

Based solely on tonnes milled through the Lone Tree autoclave.

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Table 8: Total and Unit Operating Cost Summary: LOM

LOM

Total Costs

($Millions)

Unit Cost

($/t )

Cost per Ounce

($/oz Au)

Cost Analysis

(Base Case Scenario of $2,750/oz Au)

Mining (Ore and Waste)

396

$182/t mined

816

Processing (Refractory and Oxide)

268

$122/t milled

552

Transportation & Power Costs

$31/t milled

142

Surface Op Costs

118

$54/t mined

243

G&A, Taxes and Royalties(7)

157

$71/t milled

323

Total Operating Cost/Cash

Costs(4)

1,008

$458/t milled

2,076

Sustaining Capital

$38/t milled

171

Lone Tree Plant Refurbishment Allocation

$26/t milled*

102

Closure Costs

$6/t milled

All-in Sustaining Costs(4)

1,153

$524/t milled

2,375

All-in Sustaining Costs(4,5)

(Excluding Lone Tree Plant Refurbishment Capital)

1,103

$502/t milled

2,273

Notes to table above:

Numbers may not add up due to rounding and differences in $/t mined vs $/t milled.

* Based solely on tonnes milled

through the Lone Tree autoclave.

Figure 9: LOM Production and Cost Profile (Excluding Lone Tree Plant Refurbishment Capital Allocation)

Permitting

The

Granite Creek Underground mine is fully permitted. The primary focus for the operations remains compliance and reporting requirements associated with existing site permits. Other than potential minor modifications to existing site permits

for operational purposes, no other major permitting actions are expected in the foreseeable future.

Technical Disclosure and Qualified Persons

The Technical Reports focus solely on feasibility-level technical work for Granite Creek Underground. The Technical Reports do not update the work in

the March 2025 PEA in respect of the Granite Creek open pit other than an updated mineral resource estimate, which remains subject to separate ongoing technical studies and permitting

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activities. The updated Granite Creek open pit mineral resource estimate included in the Technical Reports accounted for an increase in gold price resulting in a larger optimized pit shell,

equating to an increase in the overall open pit mineral resource inventory. The Technical Reports include an updated open pit resource estimate of 1,591,000 oz Au grading 0.97 g/t Au in the Measured and Indicated categories, and an additional 99,800

oz Au grading at 0.81 g/t Au in the Inferred category. There are no reserves for the open pit portion of the Technical Studies. These mineral resources are hosted within the A, B, CX and Mag pits. Relative to the PEA(1), Measured and Indicated resources increased by 11%, while Inferred resources increased by 33%.

The NI

43-101 FS technical report titled NI 43-101 Technical Report Feasibility Study for Granite Creek will be filed under the Company’s issuer profile on SEDAR+ at

www.sedarplus.ca; and (ii) the S-K 1300 PFS technical report summary titled SEC Technical Report Summary Pre-Feasibility Study for Granite Creek will be filed on

EDGAR at www.sec.gov. Both reports will be available on the Company’s website at www.i80gold.com.

The scientific and technical information

contained in this press release has been prepared under the supervision of, and has been reviewed and approved by Benjamin Parsons, BSc, MSc Geology, MAusIMM (CP#222568) for Mineral Resources and Anton Chan, B.Eng (Mining), MS (Earth Science),

P.Eng., MMSAQP (#01546QP) for Mineral Reserves, both of SRK Consulting (U.S.), Inc., and reviewed by Paul Chawrun P.Eng., EVP & COO, for the Company, who are all qualified persons within the meaning of NI

43-101 and S-K 1300. The gold price sensitivity analysis was prepared by the Company rather than SRK.

The Technical Reports will contain detailed descriptions of data verification, sampling and assay procedures, quality assurance and quality control measures,

key assumptions, parameters, risks and other factors supporting the mineral resource and mineral reserve estimates and the economic analysis.

Inferred

mineral resources are too speculative geologically to have economic considerations applied to them that would enable them to be categorized as mineral reserves. Mineral resources that are not mineral reserves do not have demonstrated economic

viability, and there is no certainty that the results of the NI 43-101 FS or the S-K 1300 PFS will be realized.

Updated Timing of Cove Underground Project Technical Study

The upcoming feasibility-level technical study for the Company’s Cove underground project is now expected to be completed in the fourth quarter of 2026.

The Company expects to announce the results and file the corresponding technical reports during the same quarter.

Endnotes

(1)

A Preliminary Economic Assessment (“PEA”) on the Granite Creek Property was previously prepared by

the Company in accordance with NI 43-101 and the corresponding S-K 1300, each filed in March 2025. The FS focuses solely on feasibility-level technical work for Granite

Creek Underground and does not update the previous work in the PEA in respect of the Granite Creek open pit, which remains subject to separate ongoing technical studies and permitting activities by the Company.

(2)

All reported mineral reserves for Granite Creek underground are fully attributable to the Company. All reported

underground and open pit mineral resources are 100% attributable to the Company with the exception of a fee parcel and certain unpatented mining claims, which resources are 91.67% attributable to the Company.

(3)

The Mineral Reserve estimate is based on the Mineral Resource estimate depleted through March 31, 2026.

The associated reserve mine plan therefore begins April 1, 2026. For purposes of the economic analysis, the reserve schedule was shifted one month such that the economic model begins May 1, 2026. This timing adjustment does not change the

Mineral Reserve inventory, mine plan, or scheduled quantities, and does not result in double counting of production.

(4)

This is a non-GAAP measure. Please see the section titled “Non-GAAP Financial Performance Measures” below.

(5)

All-in sustaining costs presented exclude the allocation of Lone Tree

Plant autoclave refurbishment capital. The Lone Tree autoclave capital allocation of $49.3M has been derived using a $25.97/tonne charge multiplied by the total tonnage processed at Lone Tree (1.90 million tonne).

(6)

Pending the successful completion of the refurbishment and commissioning of the Company’s Lone Tree

autoclave and carbon-in-leach Plant.

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(7)

Calculated based on a Base Case scenario of $2,750/oz; includes net profit interest (NPI) and refining.

Royalties include a 10% NPI to Gold Royalty Corp. The illustrative NPI interests stated herein do not include the impacts of any future open pit projects on the Property, to which the NPI interest similarly applies. Payments made under the NPI are

only made after recovery by the Company of all “recoverable costs” as further described under Chapter 4 of the NI-43-101 Study and Chapter 3 of the 1300

Study.

(8)

Turquoise Ridge Complex measured and indicated mineral gold resources are estimated at approximately

19.3 million ounces (approximately 117 Mt at 5.14 g/t Au), and inferred mineral gold resources are estimated at approximately 2.4 million ounces (approximately 29 Mt at 2.6 g/t Au) as at December 31, 2025, derived from Barrick Mining

Corporation’s reported 61.5% attributable mineral resources for the Turquoise Ridge Complex as disclosed in its 2025 mineral reserve and mineral resource tables. Barrick owns 61.5% and operates Nevada Gold Mines, while Newmont Corporation owns

the remaining 38.5%. No qualified person of the i-80 Gold has independently verified any mineral resource information in respect of the Turquoise Ridge Complex contained in this news release and such

information is not necessarily indicative of the mineralization on the property subject to such technical reports.

(9)

These historical drill results were generated by Homestake Mining Company in 1997 and Pinson Mining Company in

1995 and were not generated by i-80 Gold. The results have been reviewed by Tyler Hill, VP Geology for the Company. No QA/QC data is available for these results, however these holes were found to be acceptable

for use in the 2026 Granite Creek open pit resource estimate as conducted by Global Resource Engineering (GRE).

About i-80 Gold Corp.

i-80 Gold Corp. is a Nevada-focused mining company committed

to building a mid-tier gold producer through a funded three-phase development plan to advance its high-quality asset portfolio. The Company is one of the largest mineral resource holders in the state with a

pipeline of high-grade multi-stage projects strategically located in Nevada’s most prolific gold-producing trends. Leveraging its central processing facility following an anticipated refurbishment, i-80

Gold is executing a hub-and-spoke regional mining and processing strategy to maximize efficiency and growth. i-80 Gold’s

shares are listed on the NYSE (NYSE: IAUX) and the Toronto Stock Exchange (TSX: IAU). For more information, visit www.i80gold.com.

For further

information, please contact:

Leily Omoumi, SVP Corporate Development & Strategy

Caterina De Rosa, VP Investor Relations

1.866.525.6450

info@i80gold.com

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Cautionary Statement Regarding Forward-Looking Information

Certain statements in this release constitute “forward-looking statements” or “forward-looking information” within the meaning of

applicable securities laws, including but not limited to, statements regarding the updated results of the Technical Studies , such as future estimates of internal rates of return, net present value, future production, estimates of cash cost,

proposed mining plans and methods, mine life estimates, cash flow forecasts, metal recoveries, estimates of capital and operating costs, timing for permitting and environmental assessments, timing, completion and results of feasibility studies, and

the size and timing of phased development of the Project. Furthermore, forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable by the Company as of the date of such statements,

are inherently subject to significant business, economic and competitive uncertainties and contingencies. With respect to this specific forward-looking information concerning the development of the Project, the Company has based its assumptions and

analysis on certain factors that are inherently uncertain. Uncertainties include: (i) the adequacy of infrastructure; (ii) geological characteristics; (iii) metallurgical characteristics of the mineralization; (iv) the ability to

develop adequate processing capacity; (v) the price of gold, silver and other commodities; (vi) the availability of equipment and facilities necessary to complete development; (vii) the cost of consumables and mining and processing

equipment; (viii) unforeseen technological and engineering problems; (ix) natural disasters and/or accidents; (x) currency fluctuations; (xi) changes in regulations; (xii) the compliance by and/or key suppliers with terms of

agreements; (xiii) the availability and productivity of skilled labour; (xiv) the regulation of the mining industry by various governmental agencies, including permitting and environmental assessments; (xv) the ability to raise

sufficient capital to develop such projects; (xiv) changes in project scope or design; and (xv) political factors.

All statements other than

statements of historical fact are forward-looking statements. Often, but not always, forward-looking statements can be identified by the use of words such as “plans”, “expects”, “is expected”,

“budget”, “scheduled”, “estimates”, “continues”, “forecasts”, “projects”, “predicts”, “intends”, “anticipates” or “believes”, or

variations of, or the negatives of, such words and phrases, or state that certain actions, events or results “may”, “could”, “would”, “should”, “might” or “will” be taken, occur

or be achieved. Readers are cautioned that the assumptions used in the preparation of information, although considered reasonable at the time of preparation, may prove to be inaccurate and, as such, reliance should not be placed on forward-looking

statements. The Company’s actual results, performance or achievement could differ materially from those expressed in, or implied by, these forward-looking statements and, accordingly, no assurance can be given that any of the events

anticipated by the forward-looking statements will transpire or occur, or if any of them do so, what benefits, if any, that the Company will derive therefrom. By their nature, forward looking statements are subject to numerous risks and

uncertainties, some of which are beyond the Company’s control, including general economic and industry conditions, volatility of commodity prices, title risks and uncertainties, uncertainty in geological, metallurgical and geotechnical studies

and opinions, and ability to access sufficient capital from internal and external sources such as selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive.

This release also contains references to estimates of mineral resources. The estimation of mineral resources is inherently uncertain and involves subjective

judgments about many relevant factors. Mineral resources that are not mineral reserves do not have demonstrated economic viability. The accuracy of any such estimates is a function of the quantity and quality of available data, and of the

assumptions made and judgments used in engineering and geological interpretation (including estimated future production from the Project, the anticipated tonnages and grades that will be mined and the estimated level of recovery that will be

realized), which may prove to be unreliable and depend, to a certain extent, upon the analysis of drilling results and statistical inferences that may ultimately prove to be inaccurate. Mineral resource estimates may have to be re-estimated based on: (i) fluctuations in commodities prices; (ii) results of drilling, (iii) metallurgical testing and other studies; (iv) proposed mining operations, including dilution;

(v) the evaluation of mine plans subsequent to the date of any estimates; and (vi) the possible failure to receive required permits, approvals and licenses or changes to existing mining licenses.

Forward-looking statements and information involve significant known and unknown risks and uncertainties, should not be read as guarantees of future

performance or results and will not necessarily be accurate indicators of whether or not such results will be achieved. A number of factors could cause actual results to differ materially from the results expressed or implied by such forward-looking

statements or information, including, but not limited to: the Company’s ability to finance the development of its mineral properties; assumptions and discount rates being appropriately applied to the FS and

S-K 1300 Report, uncertainty as to whether there will ever be production at the Company’s mineral exploration and development properties; risks related to the Company’s ability to commence

production at the Project and generate material revenues or obtain adequate financing for its planned exploration and development activities; uncertainties relating to the assumptions underlying resource and reserve estimates; mining and development

risks, including risks related to infrastructure, accidents, equipment breakdowns, labor disputes, bad weather, non-compliance with environmental and permit requirements or other unanticipated difficulties

with or interruptions in development, construction or production; the geology, grade and continuity of the Company’s mineral deposits; the uncertainties involving success of exploration, development and mining activities; permitting timelines;

government regulation of mining operations; environmental risks; unanticipated reclamation expenses; prices for energy inputs, labor, materials, supplies and services; uncertainties involved in the interpretation of drilling results and geological

tests and the estimation of reserves and resources; unexpected cost increases in estimated capital and operating costs; the need to obtain permits and government approvals; material adverse changes, unexpected changes in laws, rules or regulations,

or their enforcement by applicable authorities; the failure of parties to contracts with the Company to perform as agreed; social or labor unrest; changes in commodity prices; and the failure of exploration programs or studies to deliver anticipated

results or results that would justify and support continued exploration, studies, development or operations. For a more detailed discussion of such risks and other factors that could cause actual results to differ materially from those expressed or

implied by such forward-looking statements, refer to i-80 Gold’s filings with Canadian securities regulators, including the most recent Annual Information Form, available on SEDAR+ at www.sedarplus.ca.

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Cautionary Note to U.S. Investors

The Company prepares its disclosure in accordance with the requirements of securities laws in effect in Canada, including NI

43-101. NI 43-101 and the U.S. Securities and Exchange Commission’s Regulation S-K 1300 have similar goals but at times

embody different approaches and definitions. Accordingly, scientific and technical information contained in this press release, including any references to mineral resources and mineral reserves, may not be comparable to similar information

disclosed by U.S. companies subject to the SEC’s disclosure requirements. Under Regulation S-K 1300, mineral resources are generally disclosed exclusive of mineral reserves, while NI 43-101 may permit inclusive presentation in a technical report if that treatment is clearly stated. Mineral resources that are not mineral reserves do not have demonstrated economic viability, and U.S. investors are

cautioned not to assume that all or any part of the mineral resources referenced herein will be converted into mineral reserves. Please see “Risks Factors” in the Form 10-K for the fiscal year

ended December 31, 2025 for more information regarding risks pertaining to the Company, which is available on EDGAR at www.sec.gov/edgar and SEDAR+ at www.sedarplus.ca. Readers are encouraged to carefully review these risk factors as well as

the Company’s other filings with the U.S. Securities and Exchange Commission and the Canadian Securities Administrators. All forward-looking statements contained in this press release speak only as of the date of this press release or as of

the dates specified in such statements. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise except as required by applicable law.

Additional information relating to i-80 Gold can be found on i-80

Gold’s website at www.i80gold.com, SEDAR+ at www.sedarplus.ca, and on EDGAR at www.sec.gov/edgar. The information included on, or accessible through, the Company’s website is not incorporated by reference into this press release.

Non-GAAP Financial Performance Measures

The Company has included certain terms or performance measures in this news release commonly used in the gold mining industry that are not defined under United

States Generally Accepted Accounting Principles (“US GAAP”). This includes: all-in sustaining costs per ounce and cash cost per ounce – including and excluding the allocated Lone Tree Plant

refurbishment capital. Non-IFRS/Non-GAAP financial performance measures do not have any standardized meaning prescribed under US GAAP, and therefore, they may not

be comparable to similar measures employed by other companies. The data presented is intended to provide additional information and should not be considered in isolation or as a substitute for measures prepared in accordance with US GAAP and

should be read in conjunction with the Company’s financial statements. Because the Company has provided these measures on a forward-looking basis, it is unable to present a quantitative reconciliation to the most directly comparable financial

measure calculated and presented in accordance with US GAAP without unreasonable efforts. This is due to the inherent difficulty of forecasting the timing or amount of various reconciling items that would impact the most directly comparable

forward-looking US GAAP measure that have not yet occurred, are outside of the Company’s control and/or cannot be reasonably predicted. The cost build-ups in the accompanying tables show the

principal components used to calculate the disclosed measures.

Definitions

“All-in sustaining costs” is a non-GAAP financial measure

calculated based on guidance published by the World Gold Council (“WGC”). The WGC is a market development organization for the gold industry and is an association whose membership comprises leading gold mining companies. Although the WGC

is not a mining industry regulatory organization, it worked closely with its member companies to develop these metrics. Adoption of the all-in sustaining cost metric is voluntary and not necessarily standard,

and therefore, this measure presented by the Company may not be comparable to similar measures presented by other issuers. The Company believes that the all-in sustaining cost measure complements existing

measures and ratios reported by the Company. All-in sustaining cost includes both operating and capital costs required to sustain gold production on an ongoing basis. Sustaining operating costs represent

expenditures expected to be incurred at the Project that are considered necessary to maintain production. Sustaining capital represents expected capital expenditures comprising mine development costs, including capitalized waste, and ongoing

replacement of mine equipment and other capital facilities, and does not include expected capital expenditures for major growth projects or enhancement capital for significant infrastructure improvements. The Company’s presentation of AISC

excluding the allocated Lone Tree Plant refurbishment capital is an additional non-GAAP measure and should be read together with the accompanying cost build-up.

“Cash cost per gold ounce” is a common financial performance measure in the gold mining industry but has no standard meaning under US GAAP. The Company believes that, in addition to conventional measures prepared in accordance with

US GAAP, certain investors use this information to evaluate the Company’s performance and ability to generate cash flow. Cash cost figures are calculated in accordance with a standard developed by The Gold Institute. The Gold Institute

ceased operations in 2002, but the standard is considered the accepted standard of reporting cash cost of production in North America. Adoption of the standard is voluntary, and the cost measures presented may not be comparable to other

similarly titled measures of other companies.

For a more detailed breakdown on how these measures were calculated, please see the Tables 7 and 8.

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APPENDIX

Table 1: Granite Creek Underground Project Detailed Cash Flow Model

Table continues on next page

Granite Creek Underground UNITS TOTAL LOM 2028 - 2032 (2) 2026E 2027E 2028E 2029E 2030E 2031E 2032E 2033E 2034E MINING Mine Life Years 8.3 5 Refractory Ore Mined k tonnes 2,139 1,560 161.8 192.0 330.3 329.9 289.0 336.7 273.6 175.9

50.2 Refractory Ore Mined Grade g/t 7.85 7.86 7.52 7.42 7.67 7.71 8.06 7.88 8.04 8.09 9.20 Oxide Ore Mined k tonnes 33 13 7.7 11.7 4.7 3.3 2.5 2.6 0.3 - - Oxide Ore Mined Grade g/t 10.02 10.43 11.8 8.4 12.1 9.1 10.8 9.7 3.1 - - Total Ore Mined k

tonnes 2,172 1,573 169.6 203.7 335.0 333.2 291.5 339.3 274.0 175.9 50.2 Daily Mining Rate tpd 724 874 465 558 918 913 799 930 751 482 137 Stockpile Used in Processing k tonnes 26 - 26.2 Stockpile Grade g/t 7.33 7.3 PROCESSING Total Material for

Processing k tonnes 2,198 1,692 162 118 454 333 292 339 274 176 50 Gold Average Grade g/t Au 7.87 7.9 7.77 7.07 7.75 7.73 8.08 7.89 8.04 8.09 9.20 Contained Gold ‘000 oz Au 556.5 429 40.5 26.8 113.2 82.8 75.7 86.1 70.8 45.8 14.8 Toll Mill

Processing (3rd party processing) Total Tonnes Processed k tonnes 266 - 156 110 Gold Grade g/t Au 7.33 0.00 7.59 6.96 Contained Gold ‘000 oz Au 63 - 38 25 Gold Average Recovery % 90% 0% 90% 90% Recovered Gold ‘000 oz Au 56 - 34.4 22.1

Lone Tree Autoclave Processing Total Tonnes Processed k tonnes 1,899 1,673 444 330 289 337 274 176 50 Gold Grade g/t Au 7.91 7.85 7.70 7.71 8.06 7.88 8.04 8.09 9.20 Contained Gold ‘000 oz Au 483 423 110 82 75 85 71 46 15 Gold Average Recovery

% 87% 87% 87% 87% 87% 87% 87% 87% 87% Recovered Gold ‘000 oz Au 422 371 98.2 71.8 65.8 74.2 61.2 38.2 12.4 Oxide Processing (Third-party ore purchase agreement until 2028) Total Tonnes Processed k tonnes 33 19 5.6 8.1 10.4 3.3 2.5 2.6 0.3 - -

Gold Grade g/t Au 10.02 9.85 12.93 8.43 10.12 9.08 10.77 9.71 3.14 - - Silver Grade g/t Ag 0.00 0.00 - - - - - - - - Contained Gold ‘000 oz Au 10.6 6.1 2.3 2.2 3.4 1.0 0.9 0.8 0.0 - - Gold Payability / Recovery % 69% 76% 60% 60% 76% 75% 74%

75% 66% - - Recovered Gold ‘000 oz Au 7.3 4.6 1.4 1.3 2.6 0.7 0.6 0.6 0.0 - - Total Tonnes Processed k tonnes 2,198 1,692 162.1 118.0 454.4 333.2 291.5 339.3 274.0 175.9 50.2 Total Gold Production(3) ‘000 oz Au 485.4 375.7 35.7 23.5

100.8 72.5 66.4 74.8 61.2 38.2 12.4 Recoverable Ag ounces remaining (BOP) REVENUE Gold Price US$/oz Au $2,750 $2,750 $2,750 $2,750 $2,750 $2,750 $2,750 $2,750 $2,750 $2,750 $2,750 Revenues (@99.75% payability) US$M $1,331 $1,031 $98 $64 $276 $199

$182 $205 $168 $105 $34 OPERATING COSTS Mining Costs (Mineralized Material incl. Backfill) Surface Op Costs Processing - Refractory / Autoclave Processing - Refractory / Third party Processing - Oxide (2028 Onwards) Transportation Power Costs

G&A Total Operating Cost US$M US$M US$M US$M US$M US$M US$M US$M US$M $396 $118 $200 $68 $0.65 $36 $33 $50 $271 $77 $176 $0 $0.65 $28 $20 $30 $33.2 $40.7 $52.6 $56.9 $55.3 $57.8 $48.3 $35.4 $15.9 $7.0 $13.5 $14.9 $15.6 $15.7 $16.0 $15.2 $12.0

$7.9 - - $46.7 $34.7 $30.4 $35.4 $28.8 $18.5 $5.3 $39.7 $27.9 - - - - - - - - - $0.4 $0.1 $0.1 $0.1 $0.0 - - $1.3 $2.8 $6.0 $6.0 $5.2 $6.1 $4.9 $3.1 $0.9 $1.8 $3.3 $3.7 $4.1 $4.2 $4.2 $4.2 $4.2 $3.1 $3.2 $5.8 $5.9 $6.3 $6.2 $6.0 $6.1 $5.8 $4.5 $86.3

$93.9 $130.2 $123.6 $117.1 $125.5 $107.4 $79.0 $37.7 $901 $604 Refining Royalties & State Taxes(4) NPI4 US$M US$M US$M $2.6 $104.5 $0.0 $2.0 $80.4 $0.0 $0.2 $0.1 $0.5 $0.4 $0.4 $0.4 $0.3 $0.2 $0.1 $7.3 $4.6 $20.0 $14.4 $13.3 $18.0 $14.7 $9.2

$3.0 - - - - - - - - - Unit Costs ($/t) Mining Costs (Ore & Waste ) Surface Op Costs Processing - Refractory / Autoclave Processing - Refractory / Third party Processing - Oxide (2028 Onwards) Transportation Power Costs G&A Total US$/t mined

US$/t mined US$/t milled US$/t milled US$/t milled US$/t milled US$/t milled US$/t milled US$/t milled $182 $54 $105 $254 $34.0 $16.5 $172 $49 $105 $0 $34.0 $16.6 $196 $200 $157 $171 $190 $170 $176 $201 $318 $41 $66 $45 $47 $54 $47 $55 $68 $158 - -

$105 $105 $105 $105 $105 $105 $105 $254 $254 - - - - - - - - - $34 $34 $34 $34 $34 - - $8 $24 $13 $18 $18 $18 $18 $18 $18 $11 $28 $8 $12 $14 $12 $15 $24 $62 $20 $49 $13 $19 $21 $18 $22 $33 $90 $15 $23 $12 $18 $410 $357 $532 $796 $286 $371 $402 $370

$392 $449 $751

20 of 21

www.i80gold.com

PRESS RELEASE

NYSE: IAUX | TSX: IAU

Notes to table above:

This is a non-GAAP measure. Please see the section titled “Non-GAAP Financial Performance Measures” above.

The Mineral Reserve estimate is based on the block model depleted through March 31, 2026. The associated

reserve mine plan therefore begins April 1, 2026. For purposes of the economic analysis, the reserve schedule was shifted one month such that the economic model begins May 1, 2026. This timing adjustment does not change the Mineral Reserve

inventory, mine plan, or scheduled quantities and does not result in double counting of production.

The FS is based on a mineral reserve and resource estimate derived from drilling data 2023 through to the end

of 2025 and should not be relied upon for production forecasts in 2026. The Company expects recovered gold ounces of between 30,000 to 40,000 ounces in 2026 from Granite Creek Underground.

Royalties include a 10% net profit interest (NPI) to Gold Royalty Corp. and refining. The illustrative NPI

interests stated herein do not include the impacts of any future open pit projects on the Property, to which the NPI interest similarly applies. Payments made under the NPI are only made after recovery by the Company of all “recoverable

costs” as further described under Chapter 4 of the NI-43-101 Study.

All-in Sustaining Costs presented excludes the allocation of Lone Tree

autoclave refurbishment capital.

Granite Creek Underground CAPITAL EXPENDITURES UNITS TOTAL 2028. LOM 2032 202sJ21 2027Ej’ 2028E 2029E 2030E

2031E 2032E’i 2033E 2034 Lone Tree Capital Allocation US$M $49.3 $40.5 $3.0 $8.6 $8.6 $7.5 $8.7 $7.1 $4.6 $1.3 Mine Capex US$M $60.7 $30.1 S16.6 $11.8 $10.3 $6.7 $4.4 $4.4 $4.4 $2.3 Surface Capitalized Costs US$M $22.2 $3.2 $15.6 $3.4 $1.7

$0.6 $0.5 $0.3 $0.0 Closure Costs US$M $12.7 $0.0 $12.7 Tolal Capital US$M $144.9 $73.8 $322 $181 $206 $159 $124 $135 $115 $68 $140 CASH COSTS & AISC Total cash Costs (Inc. Royalties)”’ USS/oz $2,076 $1,827 $2,622 54,206 $1,496

$1,910 $1,966 $1,922 $2,002 $2,317 $3,297 All-in SustainingCosts(1ll6) All-in SustainingCosts, Excluding Lone Tree USS/oz $2,375 $2,023 $3,524 54.980 ·-·$1,701-·-·$2,129-·-·$2,154-·-·$2.102

·-·$2,190 $2.496 $4,426 Capital Allocation °X61 CASH FLOW ANALYSIS USS/oz $2,273 $1,915 $3,524 $4,854; $1,615 $2,011 $2,041 $1,985 S2,073! $2,376 $4,322 Revenue net of Refining US$M $1,329 $1,028 $98 $64 $276 $198 $182 $205 $167

$104 $34 Royalty and NPf4l US$M ($104) ($80) ($7) {S5) ($20) ($14) ($13) ($18) ($15) ($9) ($3) OperatingCosts US$M ($901) ($604) ($86) ($94) ($130) ($124) ($117) (S125) ($107) (S79) ($38) Depreciation US$M ($145) ($57) ($1) {$5) ($8) ($10) {$12)

($13) 1$15) ($16) ($66) Net Operating Income US$M $179 $287 $3 ($40) $118 $51 540 $48 $31 $0 ($73) Income Taxes US$M ($25) ($25) ($0) {SO) ($5) (S3) ($5) ($7) ($5) ($0) ($0) Net Income US$M $153 $263 $3 ($40) $113 $47 S35 $42 $25 $0 ($73)

Depreciation US$M $145 $57 $1 $5 $8 $10 $12 $13 $15 $16 $66 Working Capital US$M $0 ($7) ($5) $11 ($8) ($1) ($7) ($2) $10 ($1) $3 Operating Cash Flow US$M $298 $312 ($1) ($24) $113 $56 $40 $53 $50 $15 ($4) Capital Expenditures (incl. closure costs)

US$M ($145) ($74) ($32) ($18) ($21) ($16) ($12) ($13) ($11) ($7) ($14) NET CASH FLOW’’’ US$M $153 $238 ($33) ($42) $92 $40 $28 $40 $38 $8 ($18) a

21 of 21

EX-99.2

Filename: d152188dex992.htm · Sequence: 3

EX-99.2

Exhibit 99.2

i-80 Gold Announces Initial Assay Results From Mineral Point Open

Pit Project in

Nevada Including a Step-Out Hole of 1.33 g/t Au and 39.2 g/t Ag Over 225.6

Meters

TORONTO, ON, September 22, 2026 – i-80 GOLD CORP.

(NYSE: IAUX) (TSX: IAU) (“i-80 Gold”, or the “Company”) is pleased to announce initial drill results from the ongoing 2026 infill drilling campaign at the Mineral Point

open pit heap leach project (“Mineral Point” or the “Project”). Mineral Point is a large-scale, advanced-stage oxide gold-silver project and hosts the largest gold and silver mineral resource in

i-80 Gold’s portfolio. It is also one of the largest undeveloped bulk-mineable gold-silver resources in Nevada and represents a key driver of anticipated future production growth for the Company.

The Project is located on the Company’s wholly owned Ruby Hill property in northeastern Nevada, USA, along the Battle Mountain-Eureka gold trend (see

Figure 1 in Appendix). The Ruby Hill property also includes the Archimedes underground project, the Company’s second planned underground mine which is currently under construction and is anticipated to begin gold production in the fourth

quarter of 2026.

Results of a preliminary economic assessment covering the Mineral Point Project (“2025 PEA”) were published in February

2025, which outlined a 17-year mine life with annual gold equivalent production of approximately 280,000 ounces following ramp-up, with a base case after-tax net present value (5% discount rate) of $614 million and internal rate of return of 12% at gold and silver prices of $2,175 per ounce and $26 per ounce, respectively (or a net present value of

$2.3 billion and internal rate of return of 29% at gold and silver prices of $3,000 per ounce and $35 per ounce, respectively). (To view the related press release dated February 21, 2025, click here).

Highlights From Initial Drill Results

•

1.33 g/t Au and 39.2 g/t Ag over 225.6 m in hole iMP26-07

•

1.70 g/t Au and 61.5 g/t Ag over 170.7 m in hole iMP26-23

•

0.82 g/t Au and 40.1 g/t Ag over 202.7 m in hole iMP26-09

•

1.57 g/t Au and 72.5 g/t Ag over 71.6 m in hole iMP26-11

•

0.36 g/t Au and 24.1 g/t Ag over 263.7 m in hole iMP26-32

•

0.85 g/t Au and 87.7 g/t Ag over 93.0 m in hole iMP26-17

•

0.52 g/t Au and 11.5 g/t Ag over 213.4 m in hole iMP26-35

•

0.99 g/t Au and 5.9 g/t Ag over 201.4 m in hole iRH26-05

True widths are estimated between approximately 75% - 95% of core width. See Table 2 for complete drill results.

“These initial drill results from the Mineral Point open pit drill program are very encouraging. Initial step-out

drilling to the east demonstrates potential to expand the existing mineralized footprint while the infill drill results are in line with expectations,” stated Tyler Hill, VP Geology. “We continue to see deep oxidation consistent with our

geological model and the initial step-out results suggest potential to extend mineralization by approximately one kilometer along strike and 300 meters in width. Overall drilling productivity has continually

improved since the initiation of the campaign in April this year through the arrival of additional drill rigs over the past several months. Ongoing infill drilling, metallurgical, and geotechnical work is advancing in parallel in support of a

planned pre-feasibility study targeted for mid-2027, continuing to support our view that Mineral Point has the potential to become

i-80 Gold’s largest producing asset.”

1 of 9

Overall, of the 35 initial holes reported, 19 holes were step-out

holes outside of the existing mineral resource (see Table 1). All 19 step-out holes encountered mineralization, with over half of the assays reporting more than 100 meters of gold and silver intercepts. 15 step-out holes were drilled east of the known deposit, three holes to the north, and one to the west (iRH26-07) (see Figure 2 in Appendix). The area to the east of the known

deposit, which demonstrates the most potential, was drilled sparsely by Homestake Mining Company (“Homestake”) in the early 1990s as condemnation drilling for the Archimedes open pit heap leach pad. Although many of the Homestake drill

holes confirmed mineralization, the depth of the mineralized intersections and gold price at the time did not support an economic case for further drilling. Early drilling during i-80 Gold’s 2026 program

has been focused on this area to determine if further drilling is warranted and thus far, initial results have been positive. The mineral resource supporting the 2025 PEA was constrained by a pit-shell using a base case metals price assumptions of $2,175 per ounce of gold and $26 per ounce of silver. Mineralization outside of this pit shell was not included in the 2025 PEA resource model, representing

potential upside in a future resource estimate (see Figure 3 in Appendix). Additionally, the area to the east of the known deposit demonstrates similar geological characteristics and was constrained by a lack of drilling.

Table 1: Mineral Point Mineral Resource Estimate (effective December 31, 2025)

Classification

Tonnes

(000s)

Au (g/t)

Ag (g/t)

Au oz

(000s)

Ag oz

(000s)

Indicated Mineral Resources

216,982

0.48

15.0

3,376

104,332

Inferred Mineral Resources

194,442

0.34

14.6

2,117

91,473

Notes to the mineral resource table above:

Mineral resources in the Ruby Hill Technical Report have an effective date of December 31, 2024. Aaron

Amoroso, a Qualified Person and an employee of the Company, has reviewed the Mineral Point Open Pit mineral resources and material assumptions included in the Ruby Hill Technical Report and confirmed that they remain current as of December 31,

2025.

Mineral resources are the portion of Mineral Point that can be mined profitably by open pit mining method and

processed by heap leaching.

Mineral resources are below an updated topographic surface.

Mineral resources are constrained to economic material inside a conceptual open pit shell. The main parameters

for pit shell construction are a gold price of $2,175/oz Au, a silver price of $26.00/oz, average gold recovery of 77%, average silver recovery of 40%, open pit mining costs of $3.31/tonne, heap leach average processing costs of $3.47/tonne, general

and administrative cost of $0.83/tonne processed, gold refining cost of $1.85/oz, silver refining cost of $0.50, and a 3% royalty; metal price determinations were from 2024 Q3.

Mineral resources are reported above a 0.1 g/t Au cutoff grade.

Mineral resources are stated as in situ.

Mineral resources have not been adjusted for metallurgical recoveries.

Reported units are metric tonnes.

Reported table numbers have been rounded as required by reporting guidelines and may result in summation

discrepancies.

The Project is the larger of two oxide open pit projects in i-80 Gold’s

portfolio and currently extends for approximately 10,000 feet along a major anticlinal structure, with mineralization measuring approximately 3,000 feet wide and up to 900 feet thick. Mineralization consists of disseminated gold and silver primarily

hosted in the Hamburg dolomite with oxidation pervasive to depths of 1,500 feet below surface. The deposit is near surface at its southern end and remains open to the east and at depth.

Following the Company’s 2026 recapitalization of its balance sheet, a substantial surface drilling program commenced focused primarily on upgrading

inferred mineral resources and collecting geotechnical, metallurgical and hydrogeological data to support project optimization and advancement for pre-feasibility level engineering studies. The initial results

from the 35 drill holes are presented in Table 2 below.

2 of 9

The ongoing 2026/2027 resource expansion and infill drilling program is targeting approximately 130,000

meters of drilling over 300 drill holes. Approximately 30,000 meters of core and reverse circulation drilling was completed through the end of August using up to seven drill rigs, primarily for infill drilling of the current inferred resource areas

and step-out holes beyond the current resource shell. The drill program initially progressed slower than planned due to availability of drill rigs, however, the overall drilling rate has since improved

following the mobilization of additional rigs for a total of seven. Completion of the program is presently expected in the first quarter of 2027, although this may extend past this date pending assay results and the potential to delineate expanded

areas of mineralization.

Results from the drilling program are expected to support a pre-feasibility study

targeted for approximately mid-2027, pending timing of completion of the drilling program. Early-stage pre-permitting activities are also underway.

The 2026/2027 exploration spend is expected to total between $40 to $45 million for Mineral Point, in addition to approximately $5 million for

technical and early-stage pre-permitting activities. These expenditures are expected to be funded through a portion of the proceeds from the Franco-Nevada Corporation royalty financing completed in March 2026,

of which an initial $25 million was received and allocated to Mineral Point, and a second payment of $25 million is expected to become available for Mineral Point after the initial allocation is spent.

Given the scale and economic potential of Mineral Point, the Company continues to evaluate opportunities to optimize the sequencing of its gold projects to

potentially advance the timing of Mineral Point within its development plan, which is currently within Phase 3.

Table 2: Initial Drill Results From

the Ongoing 2026 Drill Program at Mineral Point

Drill Hole ID

Type

From (m)

To (m)

Length (m)

Au (g/t)

Ag (g/t)

iMP26-01

358.1

385.7

27.4

0.14

3.7

iMP26-02*

228.6

396.2

167.6

0.34

20.6

iMP26-03*

239.3

259.1

19.8

1.00

52.0

iMP26-04*

231.7

367.3

135.6

0.29

11.6

iMP26-05*

210.3

217.9

7.6

0.73

25.2

And

286.5

313.9

27.4

0.23

5.6

And

402.3

426.7

24.4

0.26

7.2

iMP26-07*

216.4

442.0

225.6

1.33

39.2

iMP26-09*

262.1

464.8

202.7

0.82

40.1

iMP26-11

204.2

275.8

71.6

1.57

72.5

iMP26-12*

251.5

278.9

27.4

0.64

23.6

iMP26-13*

249.9

275.8

25.9

0.12

10.6

iMP26-14*

268.2

275.8

7.6

0.25

7.7

iMP26-16

146.3

185.9

39.6

1.1

56.1

And

283.5

426.7

143.3

0.48

14.9

iMP26-17

176.8

269.8

93.0

0.85

87.7

iMP26-18

181.4

221.0

39.6

0.55

27.5

And

384.0

426.7

42.7

0.47

6.5

iMP26-19

189.0

259.1

70.1

0.15

37.5

iMP26-20

161.5

249.9

88.4

0.54

74.6

iMP26-21*

347.5

371.9

24.4

0.30

4.9

iMP26-22*

208.8

417.6

208.8

0.28

7.9

iMP26-23*

249.9

420.6

170.7

1.70

61.5

iMP26-24*

288.0

435.9

147.8

0.17

3.7

iMP26-25*

257.6

426.7

169.2

0.31

7.8

iMP26-26*

248.4

457.2

208.8

0.35

10.7

3 of 9

Drill Hole ID

Type

From (m)

To (m)

Length (m)

Au (g/t)

Ag (g/t)

iMP26-30

161.5

419.1

257.6

0.29

15.6

iMP26-32

163.1

426.7

263.7

0.36

24.1

iMP26-33

170.7

231.6

61.0

0.68

56.7

iMP26-34

285.0

410.0

125.0

0.35

8.7

iMP26-35

213.4

426.7

213.4

0.52

11.5

iMP26-58*

402.3

457.2

54.9

0.56

24.7

iRH26-01

Core

151.6

164.2

12.6

0.44

38.7

iRH26-02

Core

287.6

293.2

5.6

0.29

11.8

And

Core

311.5

390.1

78.6

0.23

3.2

iRH26-03

Core

212.5

221.6

9.1

1.85

59.5

And

Core

323.2

403.7

80.5

0.69

4.6

iRH26-04*

Core

206.9

231.3

24.5

0.34

25.1

iRH26-05

Core

193.9

395.3

201.4

0.99

5.9

iRH26-06*

Core

358.7

424.4

65.7

0.16

11.5

iRH26-07*

Core

247.6

467.0

219.4

0.39

10.4

Notes to table above:

Holes

with an asterisk (*) denote step-out holes outside of the 2025 PEA pit-shell.

Drill holes not listed within the sequence have assays pending.

Numbers may not add due to rounding.

True widths are estimated

between approximately 75%-95% of listed width.

Table 3: Drill Hole Collar Coordinates

UTM

Drill Hole ID

East (m)

North (m)

Elevation (m)

Azimuth

Dip

iMP26-01

586062

4376871

1895

300

-65

iMP26-02

586065

4376866

1895

-71

iMP26-03

586068

4376864

1895

117

-61

iMP26-04

586066

4376865

1895

108

-72

iMP26-05

586065

4376866

1895

-81

iMP26-07

586057

4376870

1895

300

-85

iMP26-09

586063

4376863

1895

-61

iMP26-11

586023

4376739

1896

350

-78

iMP26-12

586046

4377683

1875

-90

iMP26-13

585849

4377374

1881

220

-82

iMP26-14

585848

4377369

1881

-90

iMP26-16

585773

4376927

1886

110

-89

iMP26-17

585614

4376880

1880

350

-89

NAD83 Zone 11N

iMP26-18

585610

4376886

1880

-80

iMP26-19

585617

4376886

1880

-64

iMP26-20

585620

4376883

1880

-83

iMP26-21

586028

4376736

1896

-79

iMP26-22

586028

4376730

1896

-66

iMP26-23

586027

4376735

1896

107

-53

iMP26-24

586028

4376734

1896

-57

iMP26-25

586026

4376728

1896

110

-75

iMP26-26

586027

4376726

1896

122

-52

iMP26-30

585622

4376882

1880

100

-83

iMP26-32

585879

4376556

1892

-86

iMP26-33

585871

4376562

1891

-81

iMP26-34

585868

4376546

1891

329

-84

4 of 9

UTM

Drill Hole ID

East (m)

North (m)

Elevation (m)

Azimuth

Dip

iMP26-35

585955

4376515

1895

-86

iMP26-58

586097

4376953

1894

112

-62

iRH26-01

585720

4377027

1886

105

-79

iRH26-02

585954

4376810

1892

230

-83

iRH26-03

585847

4376427

1891

-90

iRH26-04

585858

4377239

1882

-81

iRH26-05

586085

4376240

1936

-82

iRH26-06

586096

4376958

1893

110

-72

iRH26-07

586037

4375983

1965

192

-65

Technical Disclosure and Qualified Persons

The technical information contained in this press release has been prepared under the supervision of, and has been reviewed and approved by Paul Chawrun

P.Eng., Executive Vice President and Chief Operating Officer, and Tyler Hill CPG., Vice President Geology, each of whom is an employee of the Company and a “qualified person” within the meaning of National Instrument 43-101 - Standards of Disclosure for Mineral Projects (“NI 43-101”) and in Subpart 1300 of Regulation S-K (“S-K 1300”). Neither Mr. Chawrun nor Mr. Hill is independent of the Company within the meaning of NI 43-101.

All samples were submitted to ALS Minerals (ALS) of Sparks, NV, which is an ISO 9001 and 17025 certified and accredited laboratory, independent of the

Company. Samples submitted through ALS are run through standard prep methods and analyzed using Au-AA23 (Au; 30g fire assay) and ME-MS61 (48 element suite; 0.25g four-acid/ICP-AES & ICP-MS). ALS also undertakes their own internal coarse and pulp duplicate analysis to ensure proper sample preparation and equipment calibration. i-80 Gold’s QA/QC program includes regular insertion of standards, duplicates, and blanks into the sample stream with a stringent review of all results.

The 2025 PEA was prepared in accordance with NI 43-101 and the corresponding Initial Assessment prepared under S-K 1300, each filed in March 2025. The related press release titled “i-80 Gold Announces Positive Preliminary Economic Assessment on the Mineral Point Open Pit Project,

Nevada; After-Tax NPV(5%) of $614 Million with an After-Tax IRR of 12% at US$2,175/oz Au” announcing

results and assumptions from the PEA was filed on February 21, 2025.

For a description of the data verification, assay procedures and the quality

assurance program and quality control measures applied by the Company, please see the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, as well as the information in respect

of data verification, key assumptions, parameters, risks and other factors contained in the 2025 PEA and the corresponding Initial Assessment dated March 31, 2025.

All documents are accessible under the Company’s issuer profile on both SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov, as well as on the

Company’s website at www.i80gold.com. The 2025 PEA is preliminary in nature and includes an economic analysis that is based, in part, on inferred mineral resources. Inferred mineral resources that are considered too speculative geologically to

have for the application of economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the results of the 2025 PEA will be realized. Mineral resources do not have demonstrated

economic viability and are not mineral reserves. All the Company’s projects other than Granite Creek are considered exploration stage projects under S-K 1300, as the Company has not determined mineral

reserves at these properties pursuant to S-K 1300.

5 of 9

About i-80 Gold Corp.

i-80 Gold Corp. is a Nevada-focused mining company committed to building a

mid-tier gold producer through a funded three-phase development plan to advance its high-quality asset portfolio. The Company is one of the largest gold mineral resource holders in the state with a pipeline of

high-grade multi-stage projects strategically located in Nevada’s most prolific gold-producing trends. Leveraging its central processing facility following an anticipated refurbishment, i-80 Gold is

executing a hub-and-spoke regional mining and processing strategy to maximize efficiency and growth. i-80 Gold’s shares are

listed on the NYSE (NYSE: IAUX) and the Toronto Stock Exchange (TSX: IAU). For more information, visit www.i80gold.com.

For further information,

please contact:

Leily Omoumi, SVP Corporate Development & Strategy

Caterina De Rosa, VP Investor Relations

1.866.525.6450

info@i80gold.com

www.i80gold.com

Cautionary Statement Regarding Forward Looking Information

Certain information set forth in this press release, including but not limited to management’s assessment of the Company’s future plans and

operations, expectations regarding the timing, execution and results of the Company’s drilling programs, outlook on gold output, the anticipated timing of gold output, project development or technical studies, including completion of the

anticipated pre-feasibility study targeted for approximately mid-2027 and the release of its results, the potential for mineral resource conversion and opportunities for

expansion, management’s belief that the Project will be a key driver of future production growth for the Company; 2026/2027 planned exploration spend; expectations regarding funding through the Franco-Nevada Corporation royalty financing; the

potential timing and completion of the drilling program; constitute forward-looking statements or forward-looking information within the meaning of applicable securities laws. All statements other than statements of historical fact are

forward-looking statements. Often, but not always, forward-looking statements can be identified by the use of words such as “plans”, “expects”, “is expected”, “budget”, “scheduled”,

“estimates”, “continues”, “forecasts”, “projects”, “predicts”, “intends”, “anticipates” or “believes”, or variations of, or the negatives of, such words

and phrases, or state that certain actions, events or results “may”, “could”, “would”, “should”, “might” or “will” be taken, occur or be achieved. Readers are cautioned that the

assumptions used in the preparation of information, although considered reasonable at the time of preparation, may prove to be inaccurate and, as such, reliance should not be placed on forward-looking statements. The Company’s actual results,

performance or achievement could differ materially from those expressed in, or implied by, these forward-looking statements and, accordingly, no assurance can be given that any of the events anticipated by the forward-looking statements will

transpire or occur, or if any of them do so, what benefits, if any, that the Company will derive therefrom. By their nature, forward looking statements are subject to numerous risks and uncertainties, some of which are beyond the Company’s

control, including general economic and industry conditions, volatility of commodity prices, title risks and uncertainties, uncertainty in geological, metallurgical and geotechnical studies and opinions, and ability to access sufficient capital from

internal and external sources such as selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive.

This press release contains “forward-looking statements” within the meaning of Section 27A of the United States Securities Act of 1933 and

Section 21E of the United States Securities Exchange Act of 1934. To the extent any forward-looking statements in this press release constitute “forward-looking statements” within the meaning of the U.S. Private Securities

Litigation Reform Act of 1995, the Company intends that such forward-looking statements be subject to the safe harbor created thereby.

This release also

contains references to estimates of mineral resources. The estimation of mineral resources is inherently uncertain and involves subjective judgments about many relevant factors. Mineral resources that are not mineral reserves do not have

demonstrated economic viability. The accuracy of any such estimates is a function of the quantity and quality of available data, and of the assumptions made and judgments used in engineering and geological interpretation (including estimated future

production from the Project, the anticipated tonnages and grades that will be mined and the estimated level of recovery that will be realized), which may prove to be unreliable and depend, to a certain extent, upon the analysis of drilling results

and statistical inferences that may ultimately prove to be inaccurate. Mineral resource estimates may have to be re-estimated based on: (i) fluctuations in commodities prices; (ii) results of

drilling, (iii) metallurgical testing and other studies; (iv) proposed mining operations, including dilution; (v) the evaluation of mine plans subsequent to the date of any estimates; and (vi) the possible failure to receive

required permits, approvals and licenses or changes to existing mining licenses.

Cautionary Note to U.S. Investors

The Company prepares its disclosure in accordance with the requirements of securities laws in effect in Canada, including NI

43-101. NI 43-101 and the U.S. Securities and Exchange Commission’s Regulation S-K 1300 have similar goals but at times

embody different approaches and definitions. Accordingly, scientific and technical information contained in this press release, including any references to mineral resources, may not be comparable to similar information disclosed by U.S. companies

subject to the SEC’s disclosure requirements. Mineral resources that are not mineral reserves do not have demonstrated economic viability, and U.S. investors are cautioned not to assume that all or any part of the mineral resources referenced

herein will be converted into mineral reserves.

Please see “Risk Factors” in the Form 10-K for the

fiscal year ended December 31, 2025 for more information regarding risks pertaining to the Company, which is available on EDGAR at www.sec.gov/edgar and SEDAR+ at www.sedarplus.ca. Readers are encouraged to carefully review these risk factors

as well as the Company’s other filings with the U.S. Securities and Exchange Commission and the Canadian Securities Administrators. All forward-looking statements contained in this press release speak only as of the date of this press release

or as of the dates specified in such statements. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise except as required by

applicable law.

6 of 9

Additional information relating to i-80 Gold can be found on i-80 Gold’s website at www.i80gold.com, SEDAR+ at www.sedarplus.ca, and on EDGAR at www.sec.gov/edgar. The information included on, or accessible through, the Company’s website is not incorporated by

reference into this press release.

APPENDIX

Figure 1: Regional Map of i-80 Gold Assets in Northern Nevada

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Figure 2: Mineral Point Plan View Showing 2026 Drill Hole Locations, Mineralization and the 2025 PEA

Conceptual Pit Shell

8 of 9

Figure 3: Mineral Point Open Pit Geology Cross-Section

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