Business Description

NOTE 1 — ORGANIZATION AND PLAN OF BUSINESS OPERATIONS StoneBridge Acquisition II Corporation (the “Company”) is a blank check company incorporated as a Cayman Islands exempted corporation on June 19, 2024. The Company was incorporated for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (“Business Combination”). The Company has not yet selected any Business Combination target. The Company is not limited to a particular industry or geographic region for purposes of completing 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 December 31, 2025, the Company had not commenced any operating activities. All activity for the year ended December 31, 2025 and for the period from June 19, 2024 (inception) through December 31, 2024 relates to the Company’s formation, completion of its private placement financing and the completion of its initial public offering (“Initial Public Offering”), which is described below. The Company will not generate any operating revenues until after the completion of an initial Business Combination, at the earliest. The Company generates non-operating income in the form of interest and dividend income earned on investments held in the Trust Account (as defined below). The Company has selected December 31 as its fiscal year end. On October 1, 2025, the Company consummated the Initial Public Offering of 5,750,000 units (the “Units” and, with respect to the Class A ordinary shares included in the Units being offered, the “Public Shares”), which included the full exercise by the underwriter of its over-allotment option in the amount of 750,000 Units, at $ 10.00 per Unit, generating gross procee…