Perpetua Resources expands Hatch EPCM contract; $204.3M control budget for Stibnite Gold Project

PERPETUA RESOURCES CORP.

Amendment adds pressure-oxidation/oxygen system (POX/O2) to Hatch's scope, with $42M of the $204.3M control budget allocated to it.
Control budget total $204.3M for engineering, procurement, construction management services for Stibnite Gold Project.
Process guarantee includes performance parameters with liquidated damages or bonuses, not material to contract price.
Intellectual property provisions updated; POX/O2 improvements remain Hatch property, owner gets license for Project.
Amendment effective Feb 28, 2026; follows preliminary design work under prior limited notices to proceed.

Key facts

Extracted from this filing and checked against the source text.

Material Agreements SEC 8-K Item 1.01/1.02 confidence 0.9

PERPETUA RESOURCES CORP. amended Engineering, Procurement, and Construction Management Services Agreement with Hatch Ltd. valued at $204.3 million total Control Budget, $42.0 million allocated to POX/O2 System (effective 2026-02-28).

Action: amendment
Counterparty: Hatch Ltd.
Value: $204.3 million total Control Budget, $42.0 million allocated to POX/O2 System
Effective: 2026-02-28

Exact text from the filing

On February 28, 2026, PRII and Hatch entered into an amendment to the Agreement (the “ Amendment ”) to (i) formally add the design and installation of the pressure-oxidation and oxygen system (the “ POX/O2 System ”) for the Project to Hatch’s defined scope of services (the “ Scope ”) under the Agreement as previously disclosed; (ii) update the Contract Price and Control Budget; (iii) finalize the process guarantee; and (iv) make certain ministerial amendments to the intellectual property and confidentiality provisions in support of potential project finance lenders.

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Source: SEC EDGAR

accession 0001104659-26-024122

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