Form 8-K

8-K — Terrestrial Energy Inc. /DE/

Accession: 0001104659-26-036467

Filed: 2026-03-30

Period: 2026-03-30

CIK: 0002019804

SIC: 3443 (FABRICATED PLATE WORK (BOILER SHOPS))

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — tmb-20260330x8k.htm (Primary)

EX-99.1 (tmb-20260330xex99d1.htm)

GRAPHIC (tmb-20260330xex99d1001.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: tmb-20260330x8k.htm · Sequence: 1

TERRESTRIAL ENERGY INC._March 30, 2026

0002019804false0002019804imsr:RedeemableWarrantsEachWholeWarrantExercisableForOneCommonStockAtPriceOf11.50PerShareMember2026-03-302026-03-300002019804imsr:CommonStockParValue0.0001PerShareMember2026-03-302026-03-3000020198042026-03-302026-03-30

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 (Date of earliest event reported): March 30, 2026

TERRESTRIAL ENERGY INC.

(Exact name of registrant as specified in its charter)

Delaware

001-42252

98-1785406

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

2730 W. Tyvola Road, Suite 100

Charlotte, NC 28217

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (646) 687-8212

Not Applicable

(Former name or former address, if changed since last report)

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:

☐ 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 Stock, par value $0.0001 per share

IMSR

The Nasdaq Stock

Market LLC

Redeemable Warrants, each whole warrant exercisable for one Common

Stock at a price of $11.50 per share

IMSRW

The Nasdaq Stock

Market LLC

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 2.02. Results of Operations and Financial Condition.

On March 30, 2026, Terrestrial Energy Inc. announced its financial and operating results for the year and quarter ended December 31, 2025. A copy of the press release is furnished herewith as Exhibit 99.1 and incorporated herein by reference.

The information set forth under this Item 2.02, including Exhibit 99.1, is intended to be 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 liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

Exhibit

Description

99.1

Press Release issued by Terrestrial Energy Inc., dated March 30, 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: March 30, 2026

TERRESTRIAL ENERGY INC.

By:

/s/ Brian Thrasher

Name:

Brian Thrasher

Title:

Chief Financial Officer

EX-99.1

Filename: tmb-20260330xex99d1.htm · Sequence: 2

Exhibit 99.1

Terrestrial Energy Announces Fourth Quarter and Full Year 2025 Results

Texas A&M University selected commercial IMSR plant for deployment at RELLIS campus

U.S. Department of Energy selected both Terrestrial Energy reactor pilot and fuel-line pilot projects for advanced reactor programs

NRC Accepted IMSR Principal Design Criteria Including Inherent Reactor Control Mechanisms

Completed business combination, raising approximately $292 million in gross proceeds

CHARLOTTE, N.C. – March 30, 2026 – Terrestrial Energy Inc. (NASDAQ: IMSR) (“Terrestrial Energy” or “the Company”), a developer of small modular nuclear power plants using its Generation IV Integral Molten Salt Reactor (IMSR) technology, today announced its financial results for the fourth quarter and full year ended December 31, 2025.

“The Company made strong progress in 2025 in key areas, regulatory readiness, fuel supply development, and IMSR plant project development from engagements with deployment partners and government stakeholders,” said Simon Irish, CEO of Terrestrial Energy. “We continue into 2026 with the objective to advance with clearly defined development steps and milestones, and from aligning key program elements into a coordinated pathway to deploy IMSR plants at scale and delivering reliable, clean, firm energy to industrial markets.”

Fourth Quarter and Full Year 2025 Highlights:

● Texas A&M University, supported by expertise in its nuclear engineering faculty, selected Terrestrial Energy to site a full-sized commercial IMSR Plant at its RELLIS campus following a competitive and sector-wide evaluation process. This selection positions the RELLIS campus project among the first commercial Generation IV reactor deployments on the ERCOT grid and provides an impressive platform to accelerate IMSR Plant development to commercial operations.

● The Company expanded commercial reach and ability to execute at greater scale across the United States from collaboration with Ameresco, Inc. (NYSE: AMRC), a leading energy solutions provider with strong federal procurement capabilities. This collaboration expands access to new opportunities, supports site identification and IMSR Plant project development, particularly projects benefiting from the IMSR Plant’s customization capabilities. These include integration with other energy systems, such as natural gas, for early commercial operation and improved supply resilience, which strengthens Terrestrial Energy’s ability to deliver competitive solutions for data center energy supply.

● The U.S. Nuclear Regulatory Commission (NRC) completed its safety evaluation and accepts Terrestrial Energy’s Topical Report submission on IMSR Principal Design Criteria, which includes its mechanism for inherent reactor power control, important for load following commercial applications. This is an important step forward in licensing readiness for IMSR plant construction and operation.

● IMSR technology and the Company’s fuel strategy for commercial use received strong validation from the U.S. Department of Energy (DOE) when Terrestrial Energy received two “OTA” awards, one from each of its pilot programs. The first from the DOE’s Advanced Reactor Pilot Program, which supports quick execution of the TETRA project – the Terrestrial Energy Test Reactor Assembly project. The second was from the DOE’s Fuel Line Pilot Program, which supports the Company’s schedule for completion of Fuel Line Assembly project, TEFLA, the antecedent to Terrestrial Energy’s commercial plant for IMSR Plant fuel supply. Together, these two projects provide an accelerated pathway for IMSR Plant licensing, commercial operation and fuel supply.

● Terrestrial Energy entered the concluding phase of its reactor graphite irradiation and supplier selection program at NRG PALLAS’ High Flux Reactor in Petten, the Netherlands. These irradiation tests, conducted in one of the world’s most powerful test reactors, represent a key step in supplier selection and graphite grade qualification required for IMSR Plant licensing and operation.

● The Company successfully completed its business combination with HCM II Acquisition Corp, raising more than $292 million in gross proceeds, and began trading with a strengthened balance sheet on the Nasdaq under the ticker symbol IMSR.

● Terrestrial Energy announced a manufacturing and supply contract with Westinghouse, strengthening supply-chain readiness, and the company enhanced its senior leadership team to support U.S. commercialization efforts and deepen engagement with federal stakeholders.

Performance, Liquidity and Capital Structure:

● The Company reports a $28 million Net Loss for 2025, representing a $17 million increase from the prior year. The increase is attributable to:

o A $5 million increase in R&D as the Company expanded materials testing and progressed graphite qualification work.

o A $10 million increase in G&A due to increased legal and accounting fees, personnel- related expenses and stock-based compensation.

o A $2 million increase in interest expense due to higher debt balances and amortization of debt discount.

● As of December 31, 2025, the Company held approximately $298 million in cash and short-term investments.

● As of December 31, 2025, 105.8 million shares were issued and outstanding. This consisted of approximately 81.8 million common shares and 24.0 million exchangeable shares, exchangeable into common shares on a one-for-one basis at the option of the holder.

2026 Outlook:

● The Company will provide an update on expected 2026 milestones, including commercial, regulatory and development progress, during the earnings call.

Conference Call and Webcast

Terrestrial Energy will host a conference call today at 8:30 a.m. Eastern Time to discuss the Company’s financial results. The live webcast of the conference call and accompanying presentation materials can be accessed through Terrestrial Energy’s website at ir.terrestrialenergy.com. For those unable to access the webcast, the conference call can be accessed by dialing (877) 407-0779 (domestic) or +1 (201) 389-0914 (international) and requesting the Terrestrial Energy Fourth-Quarter 2025 Earnings Conference Call. For those unable to listen to the live conference call, a replay will be available after the call through the archived webcast in the Events section of Terrestrial Energy’s investor relations website or by dialing (844) 512-2921 or (412) 317-6671. The access code for the replay is 13759061. The replay will be available until 11:59 PM ET on April 13th, 2026.

About Terrestrial Energy

Terrestrial Energy is a developer of Generation IV nuclear plants that use its proprietary Integral Molten Salt Reactor (IMSR). The IMSR captures the transformative operating benefits of molten salt reactor technology in a plant design that represents true innovation in capital efficiency, cost reduction, versatility and functionality of nuclear energy supply. IMSR plants are designed to be small and modular for distributed supply of low-cost, reliable, dispatchable, clean, high-temperature industrial heat and electricity and to be customized for a dual-use energy role relevant to many industrial applications, such as petrochemical and chemical synthesis and data center operation. In so doing, IMSR plants extend the application of nuclear energy far beyond electric power markets. Their deployment will support the rapid growth of clean firm heat and power, delivering energy self-reliance, grid reliability and economic growth. Terrestrial Energy uses an innovative plant design together with proven and demonstrated molten salt reactor technology and readily-available and inexpensive standard-assay low-enriched uranium in its fuel for a nuclear plant with a unique set of operating characteristics and compelling transformative commercial potential. Terrestrial Energy is engaged with regulators, suppliers, industrial partners and energy end-users to build, license and commission the first IMSR plants in the early 2030s.

Forward-Looking Statements

The statements contained in this press release that are not purely historical are forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding our expectations, milestones, hopes, beliefs, intentions or strategies regarding the future. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking.

The forward-looking statements contained in this press release are based on our current expectations and beliefs concerning future developments and their potential effects on the Company. There can be no assurance that future developments affecting the Company will be those that we have anticipated. These forward-looking statements speak only as of the date of this press release and involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to differ materially from those expressed or implied by these forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, but are not limited to: (1) risks related to the development, manufacturing and construction of IMSR Plants and key components, including potential delays, cost overruns and contractor performance issues; (2) the Company’s ability to obtain applicable regulatory approvals and licenses on a timely basis or at all; (3) the ability of management to manage growth; (4) the possibility that the Company may be adversely affected by other economic, business and/or competitive factors, including from alternative energy technologies, energy price volatility and competition from other advanced reactor developers; (5) potential supply chain constraints and cost inflation for specialized nuclear-grade materials and components; (6) any failure to comply with the laws and regulations governing the use, transportation and disposal of toxic, hazardous and/or radioactive materials; (7) changes in domestic and foreign business, market, financial and political conditions and in applicable laws and regulations, including tariffs; (8) the ability to raise additional funding in the future; (9) the outcome of any legal proceedings that may be instituted against the Company; and (10) other risk factors described herein as well as the risk factors and uncertainties described in the documents filed by the Company from time to time with the U.S. Securities and Exchange Commission (the “SEC”).

The foregoing list of risk factors is not exhaustive. You should carefully consider the foregoing risk factors and the other risks and uncertainties described in the documents filed by the Company from time to time with the SEC. In addition, there may be additional risks that the Company presently knows, or that it currently believes are immaterial, that could also cause actual results to differ from those contained in the forward-looking statements. Nothing in this press release should be regarded as a representation or warranty, either express or implied, by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward-looking statements will be achieved. You should not place undue reliance on forward-looking statements, which speak only as of the date they are made.

The information contained in this press release is provided as of the date hereof and may change and the Company and its representatives and affiliates specifically disclaim any obligation to and do not intend to, update or revise any forward-looking statements, whether as a result of new information, inaccuracies, future events or otherwise, except as may be required under applicable securities laws. Information contained on our website is not a part of or incorporated into this press release.

The Company and its affiliates, officers, employees and agents make no representation or warranty, express or implied, as to the accuracy, completeness, or reliability of the information contained in this press release and expressly disclaim any liability for any errors, omissions, or reliance on such information.

This press release may contain references to trademarks, service marks and trade names belonging to the Company or other entities. Solely for convenience, such trademarks, service marks and trade names

may appear in this press release without the ®, ™, or ℠ symbols, but such references are not intended to indicate, in any way, that the Company or applicable licensor will not assert, to the fullest extent under applicable law, its rights to these marks.

Terrestrial Energy Investor Center:

https://www.terrestrialenergy.com/investors

Terrestrial Energy Media & Investor Contact:

media@terrestrialenergy.com

investor@terrestrialenergy.com

Terrestrial Energy Inc.

Consolidated Balance Sheets

(Expressed in U.S. Dollars)

December 31,

2025

2024

ASSETS

Current assets

Cash and cash equivalents

97,164,391

3,021,795

Short-term investments

200,626,281

—

Prepaid expenses and other current assets

1,769,264

270,091

Total current assets

299,559,936

3,291,886

Property and equipment, net

834,795

770,548

Intangible assets, net

707,749

616,972

Right-of-use assets

1,814,333

622,450

Other assets

63,611

29,748

Total Assets

302,980,424

5,331,604

LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)

Current liabilities

Accounts payable and accrued expenses

5,500,946

748,867

Operating lease liabilities, current

383,223

114,507

Finance lease liabilities, current

33,362

140,796

Related party advance

—

100,000

Total current liabilities

5,917,531

1,104,170

Convertible notes, net of debt discount

—

13,708,832

Accrued interest on convertible notes

—

266,554

Convertible notes, net of debt discount – related parties

—

2,371,994

Accrued interest on convertible notes – related parties

—

57,116

Operating lease liabilities, noncurrent

1,600,672

598,493

Finance lease liabilities, noncurrent

55,979

49,044

Deferred tax liabilities, net

—

665,953

Total liabilities

7,574,182

18,822,156

Commitments and Contingencies

Stockholders’ Equity (Deficit)

Common shares, $0.0001 par value; 500,000,000 authorized shares; 81,771,422 and 39,159,901 shares issued and outstanding as of December 31, 2025 and 2024, respectively

8,177

3,916

Exchangeable shares, $0.0001 par value; 24,011,017 shares issued and outstanding as of December 31, 2025 and December 31, 2024

2,401

Additional paid-in-capital

418,814,641

82,774,184

Accumulated deficit

(124,624,883)

(96,608,242)

Accumulated other comprehensive income

1,205,906

337,189

Total stockholders’ equity (deficit)

295,406,242

(13,490,552)

Total liabilities and stockholders’ equity (deficit)

302,980,424

5,331,604

Terrestrial Energy Inc.

Consolidated Statements of Operations and Comprehensive Loss

For the years ended December 31, 2025 and 2024

(Expressed in U.S. Dollars)

2025

2024

REVENUE

Engineering services revenue

—

248,357

TOTAL REVENUE

—

248,357

OPERATING EXPENSES

Research and development costs

9,767,996

5,176,932

General and administrative

14,266,775

4,168,576

Depreciation and amortization

1,161,704

1,256,391

Total Operating Expenses

25,196,475

10,601,899

OPERATING LOSS

(25,196,475)

(10,353,542)

OTHER (EXPENSE) INCOME

Government grants

323,496

708,004

Interest expense

(3,900,997)

(1,223,929)

Interest expense – related party

(438,214)

(88,906)

Loss on extinguishment of debt

—

(1,183,289)

Interest and dividend income

1,270,713

59,860

Foreign exchange gain (loss)

(57,214)

617,357

OTHER (EXPENSE) INCOME

(2,802,216)

(1,110,903)

Net loss before income tax

(27,998,691)

(11,464,445)

Income tax expense

(17,950)

(20,965)

Net loss

(28,016,641)

(11,485,410)

Loss per common share, basic and diluted

(0.39)

(0.19)

Weighted-Average Shares of Common Shares Outstanding, Basic and diluted

71,646,985

60,414,175

Net loss

(28,016,641)

(11,485,410)

Other comprehensive (loss) income net of tax:

Foreign currency translation adjustments

(260,731)

395,525

Change in unrealized gains on short-term investments

1,129,448

—

Comprehensive loss

(27,147,924)

(11,089,885)

Terrestrial Energy Inc.

Consolidated Statements of Changes in Stockholders’ Equity (Deficit)

For the years ended December 31, 2025 and 2024

(Expressed in U.S. Dollars)

Total

Accumulated

Terrestrial

Preferred Exchangeable

Common Exchangeable

Exchangeable

Additional

Other

Energy Inc.

Attributable to

Preferred Shares

Common Shares

Paid-In-

Comprehensive

Accumulated

Stockholders'

Non-Controlling

Shares*

Amount*

Shares*

Amount*

Shares*

Amount*

Shares*

Amount*

Amount

Capital

Income (Loss)

Deficit

Equity (Deficit)

Interest

Total

Balance, January 1, 2024, as previously reported

137,672

138

675,281

675

6,200

530,924

531

—

79,769,519

(58,336)

(85,122,832)

(5,410,299)

534,611

(4,875,688)

Retrospective application of recapitalization (Note 3)

(137,672)

(138)

35,666,101

2,959

(6,200)

(6)

(530,924)

(531)

24,011,017

2,401

(4,685)

—

Adjusted balance - January 1, 2024

—

36,341,382

3,634

—

24,011,017

2,401

79,764,834

(58,336)

(85,122,832)

(5,410,299)

534,611

(4,875,688)

Stock-based compensation

—

670,243

—

670,243

—

670,243

Acquisition of non-controlling interest

—

2,818,520

282

—

534,329

—

534,611

(534,611)

—

Issuance of warrants in connection with convertible notes, net of tax

—

2,006,982

—

2,006,982

—

2,006,982

Loss on extinguishment of debt from related parties

—

(202,204)

—

(202,204)

—

(202,204)

Currency translation adjustments

—

395,525

—

395,525

—

395,525

Net loss

—

(11,485,410)

—

(11,485,410)

Balance, December 31, 2024

—

39,159,901

3,916

—

24,011,017

2,401

82,774,184

337,189

(96,608,242)

(13,490,552)

—

(13,490,552)

Stock-based compensation

—

3,103,702

—

3,103,702

—

3,103,702

Issuance of Series A-1 preferred shares for cash*

—

2,812,708

282

—

25,796,919

—

25,797,201

—

25,797,201

Issuance of warrants in connection with convertible notes, net of tax

—

2,594,531

—

2,594,531

—

2,594,531

Shares issued upon exercise of warrants

—

2,011,632

201

—

4,499,799

—

4,500,000

—

4,500,000

Shares issued upon exercise of options

—

67,054

—

129

—

136

—

136

Merger financing

—

28,742,610

2,874

—

243,064,103

—

243,066,977

—

243,066,977

Transaction costs

—

(22,305,729)

—

(22,305,729)

—

(22,305,729)

Conversion of convertible notes to Common Shares

—

3,977,517

397

—

29,787,503

—

29,787,900

—

29,787,900

Issuance of shares to PIPE investors

—

5,000,000

500

—

49,499,500

—

49,500,000

—

49,500,000

Currency translation adjustments

—

(260,731)

—

(260,731)

—

(260,731)

Change in unrealized gains on short-term investments

—

1,129,448

—

1,129,448

—

1,129,448

Net loss

—

(28,016,641)

—

(28,016,641)

Balance, December 31, 2025

—

81,771,422

8,177

—

24,011,017

2,401

418,814,641

1,205,906

(124,624,883)

295,406,242

—

295,406,242

* Share amounts have been retroactively restated to give effect to the Business Combination.

Terrestrial Energy Inc.

Consolidated Statements of Cash Flows

For the years ended December 31, 2025 and 2024

(Expressed in U.S. Dollars)

2025

2024

Cash flows from operating activities

Net loss

(28,016,641)

(11,485,410)

Adjustments to reconcile net loss to net cash used in operating activities:

Depreciation and amortization

1,161,704

1,256,391

Loss on extinguishment of debt

—

1,183,289

Amortization of debt discount

2,137,984

802,573

Stock-based compensation

3,103,702

670,243

Unrealized foreign currency transaction gain

(807,193)

(812,849)

Noncash lease expense

471,362

152,086

Deferred income taxes

15,401

(15,401)

Changes in operating assets and liabilities

Accounts receivable

—

19,163

Prepaid expenses and other current assets

(1,750,631)

166,315

Accounts payable and accrued expenses

5,366,309

(196,299)

Accrued interest

1,847,554

152,571

Accrued interest - related party

326,047

37,848

Operating lease payments

(328,510)

(133,454)

Net cash used in operating activities

(16,472,912)

(8,202,934)

Cash flows from investing activities

Purchases of intangible assets

(86,150)

(54,404)

Purchases of property and equipment

(1,055,307)

(607,866)

Purchase of short-term investments

(199,496,832)

—

Net cash used in investing activities

(200,638,289)

(662,270)

Cash flows from financing activities

Proceeds from issuance of convertible notes

9,335,000

6,563,000

Proceeds from issuance of convertible notes – related parties

1,650,000

650,000

Proceeds from Series A-1 preferred shares issuance

25,797,201

—

Proceeds from the exercise of stock options for common shares

136

—

Proceeds from warrant exercise for common shares

4,500,000

—

Proceeds from issuance of shares to PIPE investors

49,500,000

—

Proceeds from merger financing

243,066,977

—

Payment of merger and recapitalization related transaction costs

(22,305,729)

—

Proceeds from related party advances

—

100,000

Repayment of finance lease liabilities

(149,138)

(58,732)

Net cash provided by financing activities

311,394,447

7,254,268

Effect of exchange rate changes on cash and cash equivalents

(140,650)

32,201

Increase (decrease) in cash and cash equivalents during the year

94,142,596

(1,578,735)

Cash and cash equivalents, beginning of year

3,021,795

4,600,530

Cash and cash equivalents, end of year

97,164,391

3,021,795

Supplemental cash flow information

Interest paid

—

514,431

Supplemental noncash investing and financing activities

Conversion of convertible notes to common shares

29,787,900

—

Initial recognition of finance leases

42,590

—

Recognition of warrants in connection with convertible notes, net of tax

2,594,531

2,006,982

Related party debt extinguishment

—

202,204

Acquisition of non-controlling interest

—

534,611

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v3.26.1

Document and Entity Information

Mar. 30, 2026

Document Information [Line Items]

Document Type

8-K

Document Period End Date

Mar. 30, 2026

Entity Registrant Name

TERRESTRIAL ENERGY INC.

Entity Incorporation, State or Country Code

Entity File Number

001-42252

Entity Tax Identification Number

98-1785406

Entity Address, Address Line One

2730 W. Tyvola Road

Entity Address, Adress Line Two

Suite 100

Entity Address, City or Town

Charlotte

Entity Address State Or Province

Entity Address, Postal Zip Code

28217

City Area Code

646

Local Phone Number

687-8212

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

true

Entity Ex Transition Period

false

Entity Central Index Key

0002019804

Amendment Flag

false

Common Stock, par value $0.0001 per share

Document Information [Line Items]

Title of 12(b) Security

Common Stock, par value $0.0001 per share

Trading Symbol

IMSR

Security Exchange Name

NASDAQ

Redeemable Warrants, each whole warrant exercisable for one Common Stock at a price of $11.50 per share

Document Information [Line Items]

Title of 12(b) Security

Redeemable Warrants, each whole warrant exercisable for one CommonStock at a price of $11.50 per share

Trading Symbol

IMSRW

Security Exchange Name

NASDAQ

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Area code of city

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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Address Line 1 such as Attn, Building Name, Street Name

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Address Line 2 such as Street or Suite number

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Name of the City or Town

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Code for the postal or zip code

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Name of the state or province.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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-Number 240

-Section 12

-Subsection b-2

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Indicate if registrant meets the emerging growth company criteria.

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-Section 12

-Subsection b-2

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Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.

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-Section B

-Subsection 2

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Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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Two-character EDGAR code representing the state or country of incorporation.

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Local phone number for entity.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

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- Definition

Title of a 12(b) registered security.

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-Name Exchange Act

-Number 240

-Section 12

-Subsection b

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- Definition

Name of the Exchange on which a security is registered.

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-Number 240

-Section 12

-Subsection d1-1

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

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Trading symbol of an instrument as listed on an exchange.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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