PPTA · Perpetua Resources Corp.

Summary

Perpetua Resources Idaho, Inc., a subsidiary of Perpetua Resources Corp., entered into Amendment No. 1 on February 28, 2026, to its Engineering, Procurement, and Construction Management Services Agreement with Hatch Ltd. for the Stibnite Gold Project. The amendment adds the POX/O2 System to the scope, sets a $204.3 million Control Budget with $42.0 million allocated to the POX/O2 System, and finalizes the Process Guarantee.

Key takeaways

• Amendment executed February 28, 2026, between Perpetua Resources Idaho, Inc. (PRII) and Hatch Ltd.
• Adds design and installation of POX/O2 System to scope of services for Stibnite Gold Project.
• Total Control Budget of $204.3 million, with $42.0 million allocated to POX/O2 System.
• Compensation on cost of services-plus basis with performance-based incentive pool.
• Includes Process Guarantee with liquidated damages or bonuses based on acceptance test results.
• Updates made to support potential project finance lenders including intellectual property provisions.