0001193125-26-129496 Sample Contracts

VOTING AND EXCHANGE TRUST AGREEMENT
Voting and Exchange Trust Agreement • March 27th, 2026 • Contango ORE, Inc. • Gold and silver ores • British Columbia

THIS VOTING AND EXCHANGE TRUST AGREEMENT made as of March 26, 2026 among Contango ORE, Inc., a corporation existing under the laws of the State of Delaware (“Contango”), 1566002 B.C. Unlimited Liability Company, an unlimited liability company existing under the laws of British Columbia (“CallCo”), 1566004 B.C. Ltd., a company existing under the laws of British Columbia (the “Acquiror”) and Computershare Trust Company of Canada, a trust company incorporated under the laws of Canada (the “Trustee”).

EXCHANGEABLE SHARE SUPPORT AGREEMENT
Exchangeable Share Support Agreement • March 27th, 2026 • Contango ORE, Inc. • Gold and silver ores • British Columbia

THIS EXCHANGEABLE SHARE SUPPORT AGREEMENT made as of March 26, 2026 among Contango ORE, Inc., a corporation existing under the laws of the State of Delaware (“Contango”), 1566002 B.C. Unlimited Liability Company, an unlimited liability company existing under the laws British Columbia (“CallCo”) and 1566004 B.C. Ltd., a company existing under the laws of British Columbia (the “Acquiror”).

AMENDING AGREEMENT
Amending Agreement • March 27th, 2026 • Contango ORE, Inc. • Gold and silver ores • British Columbia

DOLLY VARDEN SILVER CORPORATION, a corporation existing under the laws of the Province of British Columbia (“Dolly Varden”).