APAC

The shares were, and are, as applicable, directly held by the Sponsor. The reporting person is the sole managing member of the Sponsor. Bhargav Marepally and Prabhu Antony are the managing members of the reporting person, and have voting and investment discretion with respect to the Class B Ordinary Shares held directly by the Sponsor. Each of Mr. Marepally and Mr. Antony disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest each may have therein, directly or indirectly.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 100,000 Class B Ordinary Shares of the Issuer to four independent members of the Board for their respective services as members of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC (the "Sponsor"), to the four independent members of the Board. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

The shares were, and are, as applicable, directly held by the Sponsor. The reporting person is a member of BP SPAC Sponsor II LLC, the sole managing member of the Sponsor. As such, the reporting person has voting and investment discretion with respect to the ordinary shares held of record by the Sponsor and may be deemed to have shared beneficial ownership of the ordinary shares held directly by the Sponsor. The reporting person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 100,000 Class B Ordinary Shares of the Issuer to four independent members of the Board for their respective services as members of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC (the "Sponsor"), to the four independent members of the Board. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 25,000 Class B Ordinary Shares of the Issuer to Roshan Boodhoo for his service as a member of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC, to Roshan Boodhoo. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

The shares were, and are, as applicable, directly held by the reporting person. BP SPAC Sponsor II LLC is the sole managing member of the reporting person. Bhargav Marepally and Prabhu Antony are the managing members of BP SPAC Sponsor II LLC, and have voting and investment discretion with respect to the Class B Ordinary Shares held directly by the reporting person. Each of Mr. Marepally and Mr. Antony disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest each may have therein, directly or indirectly.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 100,000 Class B Ordinary Shares of the Issuer to four independent members of the Board for their respective services as members of the Board and committees of the Board. The Class B Shares were transferred by and from the reporting person, which entity is also the Issuer's sponsor, to the four independent members of the Board. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 25,000 Class B Ordinary Shares of the Issuer to Mahboob Subuhani Mohamed Mohideen for his service as a member of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC, to Mahboob Subuhani Mohamed Mohideen. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

The shares were, and are, as applicable, directly held by the Sponsor. The reporting person is a member of BP SPAC Sponsor II LLC, the sole managing member of the Sponsor. As such, the reporting person has voting and investment discretion with respect to the ordinary shares held of record by the Sponsor and may be deemed to have shared beneficial ownership of the ordinary shares held directly by the Sponsor. The reporting person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 100,000 Class B Ordinary Shares of the Issuer to four independent members of the Board for their respective services as members of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC (the "Sponsor"), to the four independent members of the Board. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 25,000 Class B Ordinary Shares of the Issuer to Joel Huffman for his service as a member of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC, to Joel Huffman. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 25,000 Class B Ordinary Shares of the Issuer to Richard Saldanha for his service as a member of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC, to Richard Saldanha. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.