Exhibit 99.1

INDEX TO FINANCIAL STATEMENT

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of
BTC Development Corp.:

Opinion on the Financial Statement

We have audited the accompanying balance sheet of BTC Development Corp. (the “Company”) as of October 1, 2025 and the related notes (collectively referred to as the “financial statement”). In our opinion, the financial statement presents fairly, in all material respects, the financial position of the Company as of October 1, 2025 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

The financial statement is the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statement based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (the “PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statement is free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audit included performing procedures to assess the risks of material misstatement of the financial statement, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statement. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statement. We believe that our audit provides a reasonable basis for our opinion.

/s/ WithumSmith+Brown, PC

We have served as the Company’s auditor since 2024.

New York, New York
October 7, 2025

BTC DEVELOPMENT CORP.
BALANCE SHEET

OCTOBER 1, 2025

The accompanying notes are an integral part of this financial statement.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 1 — DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS

BTC Development Corp. (the “Company”) was incorporated in the Cayman Islands on April 3, 2023 under the name ‘Cohen Circle Acquisition Corp. II.’ The name was changed to ‘Emerald Acquisition Corp. II’ on November 6, 2024 and then to ‘BTC Development Corp.’ on December 16, 2024. The Company was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or other similar business combination involving one or more businesses or assets (the “Business Combination”). The Company is not limited to a particular industry or sector for purposes of consummating a Business Combination. The Company is an early stage and emerging growth company and, as such, the Company is subject to all of the risks associated with early stage and emerging growth companies.

As of October 1, 2025, the Company had not commenced any operations. All activity for the period from April 3, 2023 (inception) through October 1, 2025 relates to the Company’s formation and the initial public offering (“Initial Public Offering”), which is described below. The Company will not generate any operating revenues until after the completion of its initial Business Combination, at the earliest. The Company will generate non-operating income in the form of interest income from the proceeds derived from the Initial Public Offering. The Company has selected December 31 as its fiscal year end.

The registration statement for the Company’s Initial Public Offering was declared effective on September 29, 2025. On October 1, 2025, the Company consummated the Initial Public Offering of 25,300,000 units (the “Units” and, with respect to the Class A ordinary shares included in the Units offered, the “Public Shares”) at $10.00 per Unit, which is discussed in Note 3, which includes the full exercise of the underwriters’ over-allotment option of 3,300,000 Units, generating gross proceeds of $253,000,000.

Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 760,000 units (each, a “Placement Unit” and collectively, the “Placement Units”) at a price of $10.00 per Placement Unit in a private placement to BTC Development Sponsor LLC, a Delaware limited liability company; and BTC Development Advisors LLC, a Delaware limited liability company (the “sponsors”), and the underwriters, Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (“CCM”) and Keefe, Bruyette & Woods, Inc. (“KBW”), generating gross proceeds of $7,600,000. Of those 760,000 Placement Units, one of the sponsors, BTC Development Sponsor LLC, purchased 512,500 Placement Units and CCM and KBW purchased 247,500 Placement Units.

Transaction costs amounted to $16,037,284, consisting of $4,400,000 of cash underwriting fee, $10,780,000 of deferred underwriting fee, and $857,284 of other offering costs.

The Company’s management has broad discretion with respect to the specific application of the net proceeds of the Initial Public Offering and the sale of Placement Units, although substantially all of the net proceeds are intended to be applied generally toward consummating a Business Combination. There is no assurance that the Company will be able to complete a Business Combination successfully. The Company must complete one or more initial Business Combinations with one or more operating businesses or assets with a fair market value equal to at least 80% of the net assets held in the Trust Account (as defined below) (excluding the deferred underwriting commissions and taxes payable on the interest earned on the Trust Account). The Company will only complete a Business Combination if the post-transaction company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target business sufficient for it not to be required to register as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”). Upon the closing of the Initial Public Offering on October 1, 2025, an amount of $253,000,000 ($10.00 per Unit) from the net proceeds of the sale of the Units, and a portion of the proceeds of the sale of the Private Placement Units, are held in a trust account (“Trust Account”), located in the United States and invested only in (i) U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act, with a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 under the Investment Company Act, which invest only in direct U.S. government treasury obligations, (ii) as uninvested cash, or (iii) an interest bearing bank demand deposit account or other accounts at a bank, until the earlier of (i) the completion of a Business Combination and (ii) the distribution of the funds held in the Trust Account as described below.

The Company will provide the holders of the outstanding Public Shares (the “Public Shareholders”) with the opportunity to redeem all or a portion of their Public Shares upon the completion of a Business Combination either (i) in connection with a general meeting called to approve the Business Combination or (ii) by means of a tender offer. The decision as to whether the Company will seek shareholder approval of a Business Combination or conduct a tender offer will be made by the Company. The Public Shareholders will be entitled to redeem their Public Shares for a pro rata portion of the amount then in the Trust Account (initially $10.00 per Public Share, plus any pro rata interest then in the Trust Account, net of permitted withdrawals). There will be no redemption rights upon the completion of a Business Combination with respect to the Company’s warrants. The Public Shares subject to redemption were recorded at a redemption value and classified as temporary equity upon the completion of the Initial Public Offering in accordance with the Accounting Standards Codification (“ASC”) Topic 480, “Distinguishing Liabilities from Equity.”

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 1 — DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS (cont.)

If the Company seeks shareholder approval, it will proceed with a Business Combination only if it obtains the approval of an ordinary resolution under Cayman Islands law, being the affirmative vote of the holders of a majority of the issued ordinary shares who, being present and entitled to vote at a general meeting of the Company, vote at a general meeting of the Company. If a shareholder vote is not required by applicable law or stock exchange listing requirements and the Company does not decide to hold a shareholder vote for business or other reasons, the Company will, pursuant to its Amended and Restated Memorandum and Articles of Association, conduct the redemptions pursuant to the tender offer rules of the U.S. Securities and Exchange Commission (the “SEC”) and file tender offer documents with the SEC prior to completing a Business Combination. If, however, shareholder approval of the transactions is required by applicable law or stock exchange listing requirements, or the Company decides to obtain shareholder approval for business or other reasons, the Company will offer to redeem shares in conjunction with a proxy solicitation pursuant to the proxy rules and not pursuant to the tender offer rules. If the Company seeks shareholder approval in connection with a Business Combination, the sponsors have agreed to vote any Founder Shares (as defined in Note 5), Placement Shares (as defined in Note 4) and Public Shares held by it in favor of approving a Business Combination. Additionally, each public shareholder may elect to redeem their Public Shares, without voting, and if they do vote, irrespective of whether they vote for or against a proposed Business Combination or if they vote at all.

Notwithstanding the foregoing, if the Company seeks shareholder approval of a Business Combination and it does not conduct redemptions pursuant to the tender offer rules, the Company’s Amended and Restated Memorandum and Articles of Association provides that a public shareholder, together with any affiliate of such shareholder or any other person with whom such shareholder is acting in concert or as a “group” (as defined under Section 13 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), will be restricted from redeeming its shares with respect to more than an aggregate of 15% of the Public Shares without the prior consent of the Company. The Company may waive this restriction in its sole discretion.

The sponsors, officers and directors have agreed to waive (i) their redemption rights with respect to any Founder Shares and Placement Shares held by them in connection with the completion of the Company’s Business Combination and (ii) their redemption rights with respect to the Founder Shares and Placement Shares held by them in connection with a shareholder vote to approve an amendment to the Company’s Amended and Restated Memorandum and Articles of Association (A) to modify the substance or timing of the Company’s obligation to allow redemption in connection with a Business Combination or to redeem 100% of the Public Shares if the Company does not complete a Business Combination within the Combination Period (as defined below) or (B) with respect to any other provision relating to shareholders’ rights or pre-initial Business Combination activity; and (iii) their rights to liquidating distributions from the Trust Account with respect to any Founder Shares if the Company fails to complete its initial Business Combination within the Combination Period. However, the sponsors will be entitled to redemption rights with respect to Public Shares if the Company fails to consummate a Business Combination or liquidates within the Combination Period. CCM and KBW will have the same redemption rights as the Public Shareholders with respect to any Public Shares they acquire.

The Company will have until 24 months from the closing of the Initial Public Offering (or 27 months from the closing of the Initial Public Offering if the Company has executed a definitive agreement for the initial Business Combination within 24 months from the closing of the Initial Public Offering but have not completed the initial Business Combination within such 24-month period) to complete a Business Combination (the “Combination Period”). If the Company has not completed a Business Combination within the Combination Period, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible, but not more than ten business days thereafter, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust, including interest (net of permitted withdrawals and up to $100,000 of interest to pay dissolution expenses) divided by the number of then issued and outstanding Public Shares, which redemption will completely extinguish public shareholders’ rights as shareholders (including the right to receive further liquidating distributions, if any), and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining shareholders and the Company’s board of directors, liquidate and dissolve, subject in each case to the Company’s obligations under Cayman Islands law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to the Company’s warrants, which will expire worthless if the Company fails to complete a Business Combination within the Combination Period.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 1 — DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS (cont.)

The underwriters have agreed to waive its rights to the deferred underwriting commission (see Note 6) held in the Trust Account in the event the Company does not complete a Business Combination within the Combination Period and, in such event, such amounts will be included with the other funds held in the Trust Account that will be available to fund the redemption of the Public Shares. In the event of such distribution, it is possible that the per share value of the assets remaining available for distribution will be less than $10.00 per share.

In order to protect the amounts held in the Trust Account, the sponsors have agreed to be liable to the Company if and to the extent any claims by a third party (except for the Company’s independent registered public accounting firm) for services rendered or products sold to the Company, or a prospective target business with which the Company has discussed entering into a transaction agreement, reduce the amount of funds in the Trust Account to below the lesser of (i) $10.00 per Public Share or (ii) such lesser amount per Public Share held in the Trust Account as of the date of the liquidation of the Trust Account due to reductions in the value of the trust assets, in each case net of permitted withdrawals, except as to any claims by a third party who executed a waiver of any and all rights to seek access to the Trust Account, and except under the Company’s indemnity of the underwriters of the Initial Public Offering against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the “Securities Act”). Moreover, in the event that an executed waiver is deemed to be unenforceable against a third party, the sponsors will not be responsible to the extent of any liability for such third-party claims.

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying audited financial statement is presented in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and pursuant to the rules and regulations of the SEC.

Liquidity

The Company’s liquidity needs up to October 1, 2025 had been satisfied through the advances from related party. At October 1, 2025, the Company had cash of $2,666,954 and working capital of $2,216,304.

In order to finance transaction costs in connection with a Business Combination, the sponsors or any affiliate of the sponsors intends to commit to loan the Company funds as may be required and may, but is not obligated to, loan the Company additional funds to fund the additional working capital requirements and transaction costs (“Working Capital Loans”). If the Company completes a Business Combination, the Company may repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans may be repaid only out of funds held outside the Trust Account. In the event that a Business Combination does not close, the Company may use a portion of proceeds held outside the Trust Account to repay the Working Capital Loans but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. The Working Capital Loans would either be repaid upon consummation of a Business Combination, without interest, or, at the lender’s discretion, up to $2,500,000 of such Working Capital Loans may be convertible into units upon consummation of the Business Combination at a price of $10.00 per unit. The units would be identical to the Placement Units. As of October 1, 2025, there were no amounts outstanding under the Working Capital Loans.

In connection with the Company’s assessment of going concern considerations in accordance with Accounting Standards Codification (“ASC”) 205-40, “Presentation of Financial Statements – Going Concern,” the Company does not believe it will need to raise additional funds in order to meet the expenditures required for operating its business. However, if the estimate of the costs of identifying a target business, undertaking in-depth due diligence and negotiating a Business Combination are less than the actual amount necessary to do so, the Company may have insufficient funds available to operate its business prior to the initial Business Combination. Management has determined that the Company has sufficient funds to finance the working capital needs of the Company within one year from the date of issuance of the financial statement.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (cont.)

Emerging Growth Company

The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “Securities Act”), as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the independent registered public accounting firm attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of any golden parachute payments not previously approved.

Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company’s financial statement with another public company which is neither an emerging growth company nor an emerging growth company which has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.

Use of Estimates

The preparation of the financial statement in conformity with GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statement.

Making estimates requires management to exercise significant judgment. It is at least reasonably possible that the estimate of the effect of a condition, situation or set of circumstances that existed at the date of the financial statement, which management considered in formulating its estimate, could change in the near term due to one or more future confirming events. Accordingly, the actual results could differ significantly from those estimates.

Cash and Cash Equivalents

The Company considers all short-term investments with an original maturity of three months or less when purchased to be cash equivalents. The Company had $2,666,954 in cash and no cash equivalents as of October 1, 2025.

Cash Held in Trust Account

As of October 1, 2025, the assets held in the Trust Account, amounting to $253,000,000, were held in cash.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist of a cash account in a financial institution, which, at times, may exceed the Federal Deposit Insurance Corporation coverage limit of $250,000. Any loss incurred or a lack of access to such funds could have a significant adverse impact on the Company’s financial condition, results of operations, and cash flows.

Offering Costs

The Company complies with the requirements of the ASC 340-10-S99 and SEC Staff Accounting Bulletin (“SAB”) Topic 5A — “Expenses of Offering”. Offering costs consist principally of professional and registration fees that are related to the Initial Public Offering. Financial Accounting Standards Board (“FASB”) ASC 470-20, “Debt with Conversion and Other Options”, addresses the allocation of proceeds from the issuance of convertible debt into its equity and debt components. The Company applies this guidance to allocate Initial Public Offering proceeds from the Units between Class A ordinary shares and warrants, using the residual method by allocating Initial Public Offering proceeds first to assigned value of the warrants and then to the Class A ordinary shares. Offering costs allocated to the Public Shares were charged to temporary equity, and offering costs allocated to the Public Warrants (as defined in Note 3) and Placement Units were charged to shareholders’ deficit as Public Warrants and Placement Warrants (as defined in Note 4), after management’s evaluation, were accounted for under equity treatment.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (cont.)

Income Taxes

The Company accounts for income taxes under ASC Topic 740, “Income Taxes,” which requires an asset and liability approach to financial accounting and reporting for income taxes. Deferred income tax assets and liabilities are computed for differences between the financial statement and tax bases of assets and liabilities that will result in future taxable or deductible amounts, based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized.

ASC Topic 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more likely than not to be sustained upon examination by taxing authorities. The Company’s management determined that the Cayman Islands is the Company’s major tax jurisdiction. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. As of October 1, 2025, there were no unrecognized tax benefits and no amounts accrued for interest and penalties. The Company is currently not aware of any issues under review that could result in significant payments, accruals or material deviation from its position.

The Company is considered to be an exempted Cayman Islands company with no connection to any other taxable jurisdiction and is presently not subject to income taxes or income tax filing requirements in the Cayman Islands or the United States. As such, the Company’s tax provision was zero for the period presented.

Fair Value of Financial Instruments

The fair value of the Company’s assets and liabilities, which qualify as financial instruments under ASC 820, “Fair Value Measurement,” approximates the carrying amounts represented in the balance sheet, primarily due to their short-term nature.

Warrant Instruments

The Company accounts for the Public and Placement Warrants issued in connection with the Initial Public Offering and the private placement in accordance with the guidance contained in FASB ASC Topic 815, “Derivatives and Hedging”, whereby under that provision, the warrants that do not meet the criteria for equity treatment must be recorded as liability. Accordingly, the Company evaluated and classified the warrant instruments under equity treatment at their assigned values.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (cont.)

Class A Ordinary Shares Subject to Possible Redemption

The Public Shares contain a redemption feature which allows for the redemption of such Public Shares in connection with the Company’s liquidation, or if there is a shareholder vote or tender offer in connection with the Company’s initial Business Combination. In accordance with ASC 480-10-S99, the Company classifies Public Shares subject to possible redemption outside of permanent equity as the redemption provisions are not solely within the control of the Company. The Company recognizes changes in redemption value immediately as they occur and will adjust the carrying value of redeemable shares to equal the redemption value at the end of each reporting period. Immediately upon the closing of the Initial Public Offering, the Company recognized the accretion from initial book value to redemption value. The change in the carrying value of redeemable shares will result in charges against additional paid-in capital (to the extent available) and accumulated deficit. Accordingly, as of October 1, 2025, Class A ordinary shares subject to possible redemption are presented at redemption value as temporary equity, outside of the shareholders’ deficit section of the Company’s balance sheet. As of October 1, 2025, the Class A ordinary shares subject to possible redemption reflected in the balance sheet are reconciled in the following table: 

Recent Accounting Standards

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU require disclosures, on an annual and interim basis, of significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”), as well as the aggregate amount of other segment items included in the reported measure of segment profit or loss. The ASU requires that a public entity disclose the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. Public entities will be required to provide all annual disclosures currently required by Topic 280 in interim periods, and entities with a single reportable segment are required to provide all the disclosures required by the amendments in this ASU and existing segment disclosures in Topic 280. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company adopted ASU 2023-07 as required for the year ended December 31, 2024. The adoption requires the Company to provide additional disclosures, but otherwise it does not materially impact the financial statements.

Management does not believe that any other recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on the Company’s financial statement.

NOTE 3 — INITIAL PUBLIC OFFERING

Pursuant to the Initial Public Offering on October 1, 2025, the Company sold 25,300,000 Units, which includes the full exercise of the underwriters’ overallotment option in the amount of 3,300,000 Units, at a price of $10.00 per Unit for a total of $253,000,000.. Each Unit consists of one Class A ordinary share and one-fourth of one redeemable warrant (“Public Warrant”). Each whole Public Warrant entitles the holder to purchase one Class A ordinary share at a price of $11.50 per share, subject to adjustment (see Note 7).

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 4 — PRIVATE PLACEMENT

Simultaneously with the closing of the Initial Public Offering, the sponsors, CCM and KBW purchased an aggregate of 760,000 Placement Units (at a price of $10.00 per Placement Unit, for an aggregate purchase price of $7,600,000, of which 512,500 Placement Units were purchased by one of the sponsors, BTC Development Sponsor LLC, and 247,500 Placement Units were purchased by CCM and KBW. Each Placement Unit consists of one Class A ordinary share (“Placement Share” or, collectively, “Placement Shares”) and one-fourth of one warrant (each, a “Placement Warrant”). Each whole Placement Warrant is exercisable to purchase one Class A ordinary share at a price of $11.50 per share, subject to adjustment (see Note 7). If the Company does not complete a Business Combination within the Combination Period, the proceeds from the sale of the Placement Units will be used to fund the redemption of the Public Shares (subject to the requirements of applicable law), and the Placement Units and all underlying securities will expire worthless.

NOTE 5 — RELATED PARTY TRANSACTIONS

Founder Shares

On April 4, 2025, Cohen Circle Sponsor II, LLC paid $25,000 to cover certain offering costs of the Company and became a holder of 1 Class B ordinary share (the “Founder Shares”). On August 11, 2025, the Company cancelled the one Founder Share and issued 8,686,667 Founder Shares to BTC Development Sponsor LLC. On September 5, 2025, BTC Development Sponsor LLC transferred 4,095,833 Founder Shares to BTC Development Advisors LLC. The Founder Shares include an aggregate of up to 1,100,000 shares subject to forfeiture to the extent that the underwriters’ over-allotment option is not exercised in full or in part, so that the number of Founder Shares will equal 25% of the Company’s issued and outstanding shares after the Initial Public Offering and the private placement. On October 1, 2025, the underwriters exercised their over-allotment option in full as part of the closing of the Initial Public Offering. As such, the 1,100,000 Founder Shares are no longer subject to forfeiture.

The sponsors have agreed, subject to limited exceptions, not to transfer, assign or sell any of the Founder Shares until the earlier to occur of: (A) one year after the completion of the Business Combination; and (B) subsequent to the Business Combination (x) if the last reported sale price of the Class A ordinary shares equals or exceeds $12.00 per share (as adjusted for share sub-divisions, share dividends, rights issuances, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the Business Combination or (y) the date on which the Company completes a liquidation, merger, share exchange, reorganization or other similar transaction that results in all of the Company’s public shareholders having the right to exchange their ordinary shares for cash, securities or other property. Any permitted transferees would be subject to the same restrictions and other agreements of the initial shareholders with respect to any Founder Shares.

Administrative Support Agreement

The Company has agreed, commencing on September 29, 2025, through the earlier of the Company’s consummation of a Business Combination or its liquidation, to pay an affiliate or designee of the sponsors a total of $30,000 per month for office space, utilities and shared personnel support services. As of October 1, 2025, the Company incurred $3,000 of administrative services fees which was included in accrued expenses line in the accompanying balance sheet.

Advance from related party

Starting in 2023 an affiliate of the Company advanced the Company funds for working capital purposes. This amount is reflected on the balance sheet as advance from related party. As of October 1, 2025, the Company repaid outstanding balance amounting to $239,077 at the closing of the Initial Public Offering.

Promissory Note

On July 27, 2025, the Sponsor agreed to loan the Company an aggregate of up to $500,000 to cover expenses related to the Initial Public Offering pursuant to a promissory note (the “Note”). This loan is non-interest bearing and payable on the earlier of April 27, 2026 or the completion of the Initial Public Offering. On September 30, 2025, the Company repaid the total outstanding balance of the Promissory Note and borrowings under the Note are no longer available.

Service Agreement

The Company has agreed, commencing on the effective date of the Initial Public Offering through the earlier of the Company’s consummation of a Business Combination or its liquidation, to pay its Chief Financial Officer, R. Maxwell Smeal, $12,500 per month. As of October 1, 2025, the Company incurred $1,250 of administrative services fees which was included in accrued expenses line in the accompanying balance sheet.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 5 — RELATED PARTY TRANSACTIONS (cont.)

Related Party Loans

In addition, in order to finance transaction costs in connection with a Business Combination, the sponsors or any affiliate of the sponsors intends to commit to loan the Company funds as may be required and may, but is not obligated to, loan the Company additional funds to fund the additional working capital requirements and transaction costs (“Working Capital Loans”). If the Company completes a Business Combination, the Company may repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans may be repaid only out of funds held outside the Trust Account. In the event that a Business Combination does not close, the Company may use a portion of proceeds held outside the Trust Account to repay the Working Capital Loans but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. The Working Capital Loans would either be repaid upon consummation of a Business Combination, without interest, or, at the lender’s discretion, up to $2,500,000 of such Working Capital Loans may be convertible into units upon consummation of the Business Combination at a price of $10.00 per unit. The units would be identical to the Placement Units. As of October 1, 2025, there were no amounts outstanding under the Working Capital Loans.

NOTE 6 — COMMITMENTS AND CONTINGENCIES

Risks and Uncertainties

The United States and global markets are experiencing volatility and disruption following the geopolitical instability resulting from the ongoing Russia-Ukraine conflict and the Israel-Hamas conflict. In response to the ongoing Russia-Ukraine conflict, the North Atlantic Treaty Organization (“NATO”) deployed additional military forces to eastern Europe, and the United States, the United Kingdom, the European Union and other countries have announced various sanctions and restrictive actions against Russia, Belarus and related individuals and entities, including the removal of certain financial institutions from the Society for Worldwide Interbank Financial Telecommunication payment system. Certain countries, including the United States, have also provided and may continue to provide military aid or other assistance to Ukraine and to Israel, increasing geopolitical tensions among a number of nations. The invasion of Ukraine by Russia and the Israel-Hamas conflict and the resulting measures that have been taken, and could be taken in the future, by NATO, the United States, the United Kingdom, the European Union, Israel and its neighboring states and other countries have created global security concerns that could have a lasting impact on regional and global economies. Although the length and impact of the ongoing conflicts are highly unpredictable, they could lead to market disruptions, including significant volatility in commodity prices, credit and capital markets, as well as supply chain interruptions and increased cyber-attacks against U.S. companies. Additionally, any resulting sanctions could adversely affect the global economy and financial markets and lead to instability and lack of liquidity in capital markets.

Any of the above mentioned factors, or any other negative impact on the global economy, capital markets or other geopolitical conditions resulting from the Russian invasion of Ukraine, the escalation of the Israel-Hamas conflict and subsequent sanctions or related actions, could adversely affect the Company’s search for an initial Business Combination and any target business with which the Company may ultimately consummate an initial Business Combination.

Registration Rights

The holders of the Founder Shares, Placement Units (including securities contained therein) and units (including securities contained therein) that may be issued upon conversion of Working Capital Loans, and any Class A ordinary shares issuable upon the exercise of the Placement Warrants and any Class A ordinary shares and warrants (and underlying Class A ordinary shares) that may be issued upon conversion of the units issued as part of the Working Capital Loans and Class A ordinary shares issuable upon conversion of the Founder Shares, are entitled to registration rights pursuant to a registration rights agreement signed on the effective date of the Initial Public Offering, requiring the Company to register such securities for resale (in the case of the Founder Shares, only after conversion to the Class A ordinary shares). These holders will be entitled to make up to three demands, excluding short form registration demands, that the Company register such securities for sale under the Securities Act. In addition, these holders will have “piggyback” registration rights to include such securities in other registration statements filed by the Company and rights to require the Company to register for resale such securities pursuant to Rule 415 under the Securities Act. However, the registration rights agreement provides that the Company will not permit any registration statement filed under the Securities Act to become effective until termination of the applicable lock-up period. The registration rights agreement does not contain liquidated damages or other cash settlement provisions resulting from delays in registering the Company’s securities. Notwithstanding the foregoing, CCM and KBW and/or their designees may not exercise its demand and “piggyback” registration rights after five and seven years after the effective date of the Initial Public Offering, and may not exercise its demand rights on more than one occasion. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 6 — COMMITMENTS AND CONTINGENCIES (cont.)

Underwriting Agreement

The Company granted the underwriters, Cohen & Company Capital Markets, an affiliate of the sponsors, and Keefe, Bruyette & Woods, Inc., a 45-day option from the date of Initial Public Offering to purchase up to 3,300,000 additional Units to cover over-allotments, if any, at the Initial Public Offering price less the underwriting discounts and commissions. On October 1, 2025, simultaneously with the closing of the Initial Public Offering, the underwriters elected to fully exercise the over-allotment option to purchase the additional 3,300,000 Units at a price of $10.00 per Unit.

The underwriters were entitled to a cash underwriting discount of $0.20 per Unit or $4,400,000 in the aggregate, which was paid at the closing of the Initial Public Offering. In addition, (i) $0.40 per unit sold in the base offering, or $8,800,000 in the aggregate, and (ii) $0.60 per unit sold pursuant to the underwriters’ over-allotment option, or $1,980,000 in the aggregate, is payable to the underwriters for deferred underwriting commissions held in the Trust Account. The deferred commissions will be released to CCM and KBW for their own accounts concurrently with completion of an initial Business Combination.

NOTE 7 — SHAREHOLDERS’ DEFICIT

Preference Shares — The Company is authorized to issue 1,000,000 preference shares with a par value of $0.0001 per share with such designations, voting and other rights and preferences as may be determined from time to time by the Company’s board of directors. At October 1, 2025, there were no preference shares issued or outstanding.

Class A Ordinary Shares — The Company is authorized to issue 200,000,000 Class A ordinary shares with a par value of $0.0001 per share. Holders of ordinary shares are entitled to one vote for each share. At October 1, 2025, there were 760,000 Class A ordinary shares issued and outstanding, excluding 25,300,000 shares subject to possible redemption.

Class B Ordinary Shares — The Company is authorized to issue 20,000,000 Class B ordinary shares with a par value of $0.0001 per share. Holders of ordinary shares are entitled to one vote for each share. As of October 1, 2025, there were 8,686,667 Class B ordinary shares issued and outstanding.

Warrants — As of October 1, 2025, there were 6,325,000 Public Warrants and 190,000 Placement Warrants outstanding. Public Warrants may only be exercised for a whole number of shares. No fractional warrants will be issued upon separation of the Units and only whole warrants will trade. The Public Warrants will become exercisable on the later of 30 days after the completion of a Business Combination and 12 months from the closing of the Initial Public Offering. The Public Warrants will expire five years after the completion of a Business Combination or earlier upon redemption or liquidation.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 7 — SHAREHOLDERS’ DEFICIT (cont.)

The Company will not be obligated to deliver any Class A ordinary shares pursuant to the exercise of a warrant and will have no obligation to settle such warrant exercise unless a registration statement under the Securities Act with respect to the Class A ordinary shares underlying the warrants is then effective and a prospectus relating thereto is current, subject to the Company satisfying its obligations with respect to registration. No warrant will be exercisable and the Company will not be obligated to issue any Class A ordinary shares upon exercise of a warrant unless the issuance of the shares upon such exercise is registered or qualified under the securities laws of the state of the exercising holder, or an exemption is available.

The Company has agreed that as soon as practicable, but in no event later than 20 business days after the closing of a Business Combination, the Company will use its best efforts to file, and within 60 business days following a Business Combination to have declared effective, a registration statement covering the Class A ordinary shares issuable upon exercise of the warrants. The Company will use its best efforts to cause the same to become effective and to maintain the effectiveness of such registration statement, and a current prospectus relating thereto, until the expiration of the warrants in accordance with the provisions of the warrant agreement. Notwithstanding the foregoing, if a registration statement covering the Class A ordinary shares issuable upon exercise of the warrants is not effective within a specified period following the consummation of a Business Combination, warrant holders may, until such time as there is an effective registration statement and during any period when the Company shall have failed to maintain an effective registration statement, exercise warrants on a cashless basis pursuant to the exemption provided by Section 3(a)(9) of the Securities Act, provided that such exemption is available. If that exemption, or another exemption, is not available, holders will not be able to exercise their warrants on a cashless basis.

Redemption of warrants when the price per Class A ordinary share equals or exceeds $18.00. Once the Warrants become exercisable, the Company may redeem the Warrants:

If and when the warrants become redeemable by the Company, the Company may exercise its redemption right even if it is unable to register or qualify the underlying securities for sale under all applicable state securities laws.

In addition, if (x) the Company issues additional Class A ordinary shares or equity-linked securities for capital raising purposes in connection with the closing of a Business Combination at an issue price or effective issue price of less than $9.20 per ordinary share (with such issue price or effective issue price to be determined in good faith by the Company’s board of directors, and, in the case of any such issuance to the sponsors or their respective affiliates, without taking into account any Founder Shares held by the sponsors or their respective affiliates, as applicable, prior to such issuance) (the “Newly Issued Price”), (y) the aggregate gross proceeds from such issuances represent more than 60% of the total equity proceeds, and interest thereon, available for the funding of a Business Combination on the date of the completion of a Business Combination (net of redemptions), and (z) the volume-weighted average trading price of the Class A ordinary shares during the 20 trading day period starting on the trading day prior to the day on which the Company completes a Business Combination (such price, the “Market Value”) is below $9.20 per share, the exercise price of the warrants will be adjusted (to the nearest cent) to be equal to 115% of the higher of the Market Value and the Newly Issued Price, and the $18.00 per share redemption trigger price will be adjusted (to the nearest cent) to be equal to 180% of the higher of the Market Value and the Newly Issued Price.

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 7 — SHAREHOLDERS’ DEFICIT (cont.)

The Placement Warrants are identical to the Public Warrants underlying the Units sold in the Initial Public Offering, except that the Placement Warrants and the Class A ordinary shares issuable upon the exercise of the Placement Warrants will not be transferable, assignable or salable until 30 days after the completion of a Business Combination, subject to certain limited exceptions. Additionally, the Placement Warrants will be exercisable on a cashless basis and be non-redeemable.

NOTE 8 — FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received for sale of an asset or paid for transfer of a liability in an orderly transaction between market participants at the measurement date. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). These tiers include:

The fair value of the Public Warrants is $1,518,000 or $0.24 per public warrant. The fair value of Public Warrants was determined using binomial or lattice model. The Public Warrants have been classified within shareholders’ deficit and will not require remeasurement after issuance. The following table presents the quantitative information regarding market assumptions used in the level 3 valuation of the Public Warrants:

BTC DEVELOPMENT CORP.
NOTES TO FINANCIAL STATEMENT

NOTE 9 — SEGMENT INFORMATION

ASC Topic 280, “Segment Reporting,” establishes standards for companies to report in their financial statement information about operating segments, products, services, geographic areas, and major customers. Operating segments are defined as components of an enterprise for which separate financial information is available that is regularly evaluated by the Company’s CODM, or group, in deciding how to allocate resources and assess performance.

The Company’s CODM has been identified as the Chief Financial Officer, who reviews the assets, operating results, and financial metrics for the Company as a whole to make decisions about allocating resources and assessing financial performance. Accordingly, management has determined that the Company only has one reportable segment.

The CODM assesses performance for the single segment and decides how to allocate resources. The measure of segment assets is reported on the balance sheet as total assets. When evaluating the Company’s performance and making key decisions regarding resource allocation, the CODM reviews several key metrics included in total assets, which include the following:

NOTE 10 — SUBSEQUENT EVENTS

The Company evaluated subsequent events and transactions that occurred after the balance sheet date up to October 7, 2025, the date that the financial statement was issued. Based on this review, no items were noted to be disclosed.