PERPETUA RESOURCES CORP. 8-K

What Happened

• On May 29, 2026, the U.S. District Court for the District of Idaho denied a motion for a preliminary injunction filed by environmental groups challenging the U.S. Forest Service’s record of decision and final EIS for Perpetua’s Stibnite Gold Project. The injunction motion had been filed May 8, 2026 in a lawsuit originally filed Feb. 18, 2025. The court also granted in part Perpetua’s motion to strike certain materials submitted by the plaintiffs.
• Following the decision, Perpetua commenced additional critical-path construction activities on May 30, 2026 for the 2026 field season, including initial work on the Burntlog Route road upgrades. These activities add to early works that began in October 2025 and include planned on-site worker housing, selected powerline upgrades, and approved exploration and geotechnical drilling.

Key Details

• Filing: Current Report on Form 8-K (Item 8.01) filed June 1, 2026.
• Court action: Memorandum decision issued May 29, 2026; plaintiffs’ injunction motion denied.
• Construction: Additional critical-path work began May 30, 2026, specifically initial Burntlog Route upgrades; other planned 2026 activities include housing, powerline upgrades, and drilling.
• Parties: Plaintiffs include Save the South Fork Salmon, Idaho Conservation League and other NGOs; defendants include the U.S. Forest Service and USDA.

Why It Matters

• For investors, the court’s denial of the preliminary injunction allowed Perpetua to resume and expand on-site construction work tied to the Stibnite Gold Project, potentially keeping the project’s 2026 field-season plans on track.
• The lawsuit, however, is ongoing and the court’s decision is not final and could be appealed; the company’s update includes standard forward-looking statement cautions about planned activities and risks.