Seabridge sees Tudor drop appeal over KSM tunnel ruling

Executive Summary

• Tudor Gold Corp. has filed a notice of abandonment of appeal with the Supreme Court of British Columbia, effectively ending its legal challenge regarding the jurisdiction of the BC Chief Gold Commissioner (CGC) over Seabridge Gold's KSM Mitchell Treaty Tunnels (MTT).
• The abandonment confirms the CGC's May 28, 2025 decision declining jurisdiction over Tudor's application to determine that Seabridge's KSM MTT conditional mineral reserve (CMR) should not apply to Tudor or be cancelled.
• The MTT are critical infrastructure for the KSM project, with approximately 12.5 kilometers passing through mineral claims owned by Tudor, requiring claim holders not to obstruct the tunnels.

Key Details

• Legal Outcome: Tudor Gold Corp. abandoned its appeal of the Chief Gold Commissioner's decision, accepting the CGC's ruling that she lacks jurisdiction to hear the application challenging the KSM MTT conditional mineral reserve (CMR).
• CGC Decision Details: The CGC's decision was issued on May 28, 2025, declining jurisdiction over Tudor's application which sought either a determination that the CMR does not apply to Tudor or, alternatively, that the CMR be cancelled.
• Historical Context: Seabridge Gold reported the initiation of Tudor's appeal on July 14, 2025.
• Infrastructure Significance: The Mitchell Treaty Tunnels (MTT) are a critical infrastructure component of the KSM project, consisting of two parallel tunnels connecting the east and west sides of the mine site.
• Claim Interaction: Approximately 12.5 kilometers of the MTT pass through mineral claims owned by Tudor.
• Conditional Mineral Reserve (CMR): The CMR requires current holders of the mineral claims through which the MTT pass not to obstruct, endanger, or interfere with the construction, operation, or maintenance of the MTT.
• Regulatory Confirmation: The legal effect of the CMR has been confirmed by representatives of the B.C. Ministry of Mines on multiple occasions over the last 11 years.

Notable Quotes

• Rudi Fronk, Chair and CEO of Seabridge Gold: "We applaud Tudor's decision to abandon its appeal, which lacked any merit from the outset. This action reinforces our position that the authorizations issued in favour of the MTT do not give Seabridge any interest in Tudor's mineral rights."