UNDERWRITING AGREEMENT between Lake Superior Acquisition Corp. and COHEN & COMPANY CAPITAL MARKETS, A DIVISION OF COHEN & COMPANY SECURITIES, LLC As Representative of the Underwriters Dated: October 6, 2025 FORM OF UNDERWRITING AGREEMENTUnderwriting Agreement • October 10th, 2025 • Lake Superior Acquisition Corp • Blank checks • New York
The undersigned, Lake Superior Acquisition Corp., a British Virgin Islands company (the “Company”), hereby confirms its agreement with Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (“CCM”) (the “Representative”) and with the other underwriters named on Schedule A hereto (if any), for which the Representative is acting as representative (the Representative and such other underwriters being collectively referred to herein as the “Underwriters” or, each underwriter individually, an “Underwriter,” provided that, if only the Representative is listed on such Schedule A, any references to Underwriters shall refer exclusively to the Representative) as follows:
UNDERWRITING AGREEMENT between VIKING ACQUISITION CORP. I and COHEN & COMPANY CAPITAL MARKETS, A DIVISION OF COHEN & COMPANY SECURITIES, LLC As Representative of the Underwriters Dated: [●], 2025 UNDERWRITING AGREEMENTUnderwriting Agreement • October 10th, 2025 • Viking Acquisition Corp I • Blank checks • New York
The undersigned, Viking Acquisition Corp. I, a Cayman Islands exempted company (the “Company”), hereby confirms its agreement with Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC as represntative (the “Representative”) and with the other underwriters named on Schedule A hereto (if any), for which the Representative is acting as Representative and such other underwriters being collectively referred to herein as the “Underwriters” or, each underwriter individually, an “Underwriter,” provided that, if only the Representative is listed on such Schedule A, any references to Underwriters shall refer exclusively to the Representative as follows:
AI Infrastructure Acquisition Corp. UNDERWRITING AGREEMENTUnderwriting Agreement • October 9th, 2025 • AI Infrastructure Acquisition Corp. • Blank checks • New York
AI Infrastructure Acquisition Corp., a Cayman Islands exempted company, limited by shares (the “Company”), hereby confirms its agreement with Maxim Group LLC (the “Representative” or “Maxim”), as representative of the several underwriters named on Schedule A hereto (the “Underwriters” or, each underwriter individually, an “Underwriter”), as follows:
GIGCAPITAL8 CORP. UNDERWRITING AGREEMENTUnderwriting Agreement • October 9th, 2025 • GigCapital8 Corp. • Blank checks • New York
GigCapital8 Corp., a Cayman Islands exempted company (the “Company”), hereby confirms its agreement (this “Agreement”) with D. Boral Capital LLC (hereinafter referred to as “you” (including its correlatives) acting as representative (the “Representative”) of the several underwriters named on Schedule A hereto (the “Underwriters” or, each underwriter individually, an “Underwriter”), as follows: