Capstone Copper Corp. — Board/Management Information 2024

Jan 4, 2024

FORM 51-102F3 Material Change Report

Item 1. Name and Address of Company Capstone Copper Corp. (the “Company” or “Capstone”) 2100 – 510 West Georgia Street Vancouver, BC V6B 0M3 Item 2. Date of Material Change May 7, 2023

Item 3. News Release

A news release announcing the material change referred to in this report was issued on May 8, 2023 via Business Wire, a Berkshire Hathaway company and filed under Capstone’s profile on SEDAR+.

Item 4. Summary of Material Change (the “ Board ”). Item 5. Full Description of Material Change 5.1 Full Description of Material Change The Company announced the resignation of Mr. George Brack from the Board. 5.2 Disclosure for Restructuring Transactions Not applicable. Item 6. Reliance on subsection 7.1(2) of National Instrument 51-102

• The Company announced the resignation of Mr. George Brack from its Board of Directors (the “ Board ”).

The Company announced the resignation of Mr. George Brack from the Board.

Not applicable.

Item	7.	Omitted Information
		Not applicable.
Item	8.	Executive Officer
		John MacKenzie, Chief Executive Officer
		604.684.8894
Item	9.	Date of Report
		January 4, 2024