X0407 4 2023-05-31 0 0001845149 Chain Bridge I CBRG 0001326389 Polar Asset Management Partners Inc. 16 YORK STREET SUITE 2900 TORONTO A6 M5J 0E6 ONTARIO, CANADA 0 0 1 0 0 Class A ordinary shares, par value $0.0001 per share 2023-05-31 4 P 0 38205 10.44 A 458205 I See footnote 1 1.Polar Asset Management Partners Inc., a company incorporated under the laws of Ontario, Canada (the "Reporting Person"), serves as investment advisor to Polar Multi-Strategy Master Fund, a Cayman Islands exempted company ("PMSMF") and has sole voting and investment discretion with respect to the securities reported herein which are held by PMSMF. The Reporting Person disclaims beneficial ownership of the securities reported herein, and this report shall not be deemed an admission that Reporting Person is the beneficial owner of the securities reported herein for the purpose of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose, except to the extent of Reporting Person's pecuniary interest therein. /s/ Andrew Ma, Chief Compliance Officer, on behalf of Polar Asset Management Partners Inc. 2023-06-02