Broker Agreement

Executive Summary

• Endeavour Mining has re-entered an Automatic Share Purchase Plan (ASPP) with its designated broker to facilitate share repurchases under its existing Normal Course Issuer Bid (NCIB).
• The ASPP enables the company to execute purchases during regulatory restrictions or customary self-imposed blackout periods when open market transactions are otherwise restricted.
• All acquisitions will be executed at market price on designated exchanges, count toward the NCIB limits, and the acquired shares will be cancelled.

Key Details

• ASPP took effect on June 4, 2026, with the company's designated broker.
• Facilitates purchases under the NCIB, which commenced on March 24, 2026, and is scheduled to end on March 23, 2027, or earlier upon completion.
• Purchases will be executed on the open market via the London Stock Exchange, TSX, alternative Canadian trading systems, or other designated exchanges.
• All purchases will be made at the prevailing market price and will count toward the established NCIB limits.
• The broker will execute purchases without further instruction from the Company during blackout periods, adhering to pre-established parameters and TSX rules.
• Any Ordinary Shares acquired under the NCIB will be cancelled.
• The Company confirmed it is not currently in possession of any material undisclosed information.