Note 1 — Description of Organization and Business Operations

SPACSphere Acquisition Corp. (the “Company” or “we,” “us,” or “our”) was incorporated in Cayman Islands on June 18, 2025. The Company was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination (the “Business Combination”). The Company has not selected any specific Business Combination target and the Company has not, nor has anyone on its behalf, engaged in any substantive discussions, directly or indirectly, with any Business Combination target with respect to an initial Business Combination with the Company. 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 December 31, 2025, the Company had not commenced any operations. All activity for the period from June 18, 2025 (inception) through December 31, 2025 relates to the Company’s formation, the initial public offering described below, and subsequent to the Initial Public Offering, identifying a target company for a Business Combination. 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 on cash and cash equivalents from the proceeds derived from the Initial Public Offering (defined below). The Company has selected December 31 as its fiscal year end.

The Company’s sponsor is SPACSphere Sponsor LLC, a Delaware limited liability company (the “Sponsor”). On February 9, 2026, the Company consummated its Initial Public Offering of 17,250,000 units (the “Units”), including the purchase by the underwriters of 2,250,000 additional Units at the offering price, reflecting the exercise of their option to purchase additional Units to cover over-allotments. The Units were sold at a price of $10.00 per Unit, generating gross proceeds to the Company of $172,500,000 which is discussed in Note 3. Each public Unit consists of one Class A ordinary share (each a “Class A Ordinary Share” and collectively, the “Public Shares”), one-half of one redeemable warrant, and one right to receive one-fifth (1/5) of one Class A ordinary share upon the consummation of the initial Business Combination (the “Share Rights”).

Simultaneously with consummation of the Initial Public Offering, the Company consummated the sale of (a) 279,465 private placement units (each, a “Private Placement Unit” and collectively, the “Private Placement Units”) and (b) 768,529 restricted Class A ordinary shares, which shares shall be subject to (i) certain restrictions which only lapse upon the consummation of the initial Business Combination and (ii) surrender for nil consideration if an initial Business Combination is not consummated in accordance with the amended and restated memorandum and articles of association (each, a “Restricted Class A Ordinary Share” and the Restricted Class A Ordinary Shares collectively with the Private Placement Units, the “Private Placement Securities”) to our Sponsor and certain private placement investors, generating gross proceeds of $2,794,650. The Private Placement Units are identical to the Units, except that the Private Placement Units (and the underlying securities) may not, subject to certain limited exceptions, be transferred, assigned or sold by the holders until 30 days following the consummation of the Company’s initial Business Combination. The Restricted Class A Ordinary Shares are Class A ordinary shares of the Company that have had certain voting and transfer rights contractually waived until 30 days following the consummation of the Company’s initial Business Combination.

Transaction costs amounted to $14,280,684, consisting of $1,293,750 of cash underwriting fee (net of $2,156,250 underwriters’ reimbursement), $12,075,000 of deferred underwriting fee, and $911,934 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 Private 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’s Business Combination must be with one or more target businesses that together have a fair market value equal to at least 80% of the net balance in the Trust Account (as defined below) (excluding the amount of deferred underwriting discounts held and any Permitted Withdrawals) at the time of the signing an agreement to enter into a Business Combination. However, the Company will only complete a Business Combination if the post-Business Combination company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target 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”). There is no assurance that the Company will be able to successfully effect a Business Combination.

Following the closing of the Initial Public Offering, February 9, 2026, an amount of $172,500,000 ($10.00 per Unit) from the net proceeds of the sale of the Units and the sale of the Private Placement was placed in the trust account (the “Trust Account”) and invested or held in either (i) U.S. government treasury bills with a maturity of 185 days or less or in money market funds investing solely in U.S. Treasuries, (ii) uninvested cash, or (iii) an interest bearing bank demand deposit account or other accounts at a bank, as determined by the Company, until the earlier of (i) the completion of a Business Combination or (ii) the distribution of the funds in the Trust Account to the Company’s shareholders, 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 shareholder 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 (as defined in Note 3) for a pro rata portion of the amount then in the Trust Account, subject to the limitations described elsewhere in this prospectus (initially anticipated to be $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 with respect to the Company’s warrants and Share Rights.

All of the Public Shares contain a redemption feature which allows for the redemption of such Public Shares in connection with the Company’s liquidation, if there is a shareholder vote or tender offer in connection with the Company’s Business Combination and in connection with certain amendments to the Company’s amended and restated memorandum and articles of association. In accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 480, “Distinguishing Liabilities from Equity” (“ASC 480”), Subtopic 10-S99, redemption provisions not solely within the control of a company require Class A ordinary shares subject to redemption to be classified outside of permanent equity. Given that the Public Shares were issued with other freestanding instruments (i.e., warrants and Public Share Rights), the initial carrying value of the Public Shares classified as temporary equity are the allocated proceeds determined in accordance with ASC 470-20, “Debt with Conversion and other Options”. The Public Shares are subject to ASC 480-10-S99. If it is probable that the equity instrument will become redeemable, the Company has the option to either (i) accrete changes in the redemption value over the period from the date of issuance (or from the date that it becomes probable that the instrument will become redeemable, if later) to the earliest redemption date of the instrument or (ii) recognize changes in the redemption value immediately as they occur and adjust the carrying amount of the instrument to equal the redemption value at the end of each reporting period. The Company has elected to recognize the changes immediately. The Public Shares are redeemable and are classified as such on the balance sheet until such date that a redemption event takes place.

Redemptions of the Company’s Public Shares may be subject to the satisfaction of conditions, including minimum cash conditions, pursuant to an agreement relating to the Company’s Business Combination. If the Company seeks shareholder approval of the Business Combination, the Company will proceed with a Business Combination if a majority of the shares voted are voted in favor of the Business Combination, or such other vote as required by law or stock exchange rule. 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 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 transaction 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 Sponsor has agreed to vote its Founder Shares and any Public Shares purchased during or after the Initial Public Offering 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 the proposed transaction.

Notwithstanding the foregoing, the 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% or more of the Class A Ordinary Shares sold in the Initial Public Offering, without the prior consent of the Company.

The Company’s Sponsor, officers and directors (the “initial shareholders”) have agreed not to propose an amendment to the amended and restated memorandum and articles of association that would affect the substance or timing of the Company’s obligation to redeem 100% of its Public Shares if the Company does not complete a Business Combination, unless the Company provides the public shareholders with the opportunity to redeem their Class A Ordinary Shares in conjunction with any such amendment.

If the Company is unable to complete a Business Combination within 15 months from the closing of the Initial Public Offering or during any Extension Period (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 per-share pro rata portion of the aggregate amount then on deposit in the Trust Account including interest earned thereon not previously released to the Company (such interest net of Permitted Withdrawals and less up to $100,000 of dissolution expenses), divided by the number of then outstanding Public Shares, subject to applicable law as further described herein, which redemption will completely extinguish public shareholders’ rights as shareholders (including the right to receive further liquidating distributions, if any), subject to applicable law, 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, dissolve and liquidate, 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.

The initial shareholders have agreed to waive their liquidation rights with respect to the Founder Shares if the Company fails to complete a Business Combination within the Combination Period. However, if the initial shareholders should acquire Public Shares in or after the Initial Public Offering, they will be entitled to liquidating distributions from the Trust Account with respect to such Public Shares if the Company fails to complete a Business Combination within the Combination Period. The underwriters have agreed to waive their rights to its deferred underwriting commission (see Note 6) held in the Trust Account in the event the Company does not complete a Business Combination within in 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, subject to the limitations described herein. In the event of such distribution, it is possible that the per share value of the residual assets remaining available for distribution (including Trust Account assets) will be only $10.00 per share initially held in the Trust Account. In order to protect the amounts held in the Trust Account, the Sponsor has agreed to be liable to the Company if and to the extent any claims by a vendor 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. This liability will not apply with respect to any claims by a third party who executed a waiver of any right, title, interest or claim of any kind in or to any monies held in the Trust Account or to any claims 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 Sponsor will not be responsible to the extent of any liability for such third party claims. The Company will seek to reduce the possibility that the Sponsor will have to indemnify the Trust Account due to claims of creditors by endeavoring to have all vendors, service providers, prospective target businesses or other entities with which the Company does business, execute agreements with the Company waiving any right, title, interest or claim of any kind in or to monies held in the Trust Account.

Going Concern Consideration

As of December 31, 2025, the Company had $6,081 in cash equivalents and $673,162 in working capital deficit.

In order to finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor, or certain of the Company’s officers and directors may, but are not obligated to, loan the Company funds as may be required (“Working Capital Loans”). Such Working Capital Loans would be evidenced by promissory notes. The notes may be repaid upon completion of a Business Combination, without interest, or, at the lender’s discretion, up to $1,000,000 of the Working Capital Loans may be converted upon completion of a Business Combination into private units at a price of $10.00 per unit. Such private units would be identical to the Private Placement Units. 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. As of December 31, 2025, there were no Working Capital Loans outstanding.

The Company has since completed its Initial Public Offering at which time capital in excess of the funds deposited in Trust Account and/or used to fund offering expenses was released to the Company for general capital purposes. Further, the Company has incurred and expects to continue to incur significant costs in pursuit of its financing and acquisition plans. In connection with the Company’s assessment of going concern considerations in accordance with FASB ASC 205-40, “Presentation of Financial Statements — Going Concern,” the Company’s management has since reevaluated the Company’s liquidity and financial condition, and determined that the Company still lacks the liquidity to sustain operations for a reasonable period of time, which is considered to be one year from the date of the issuance of the financial statements. These conditions raise substantial doubt about the Company’s ability to continue as a going concern. Management plans to address this uncertainty with the Business Combination. There is no assurance that the Company’s plans to complete the Business Combination will be successful. The financial statements does not include any adjustments that might result from the outcome of this uncertainty.