Perpetua Resources (PPTA) said Tuesday it has selected Hatch as engineering, procurement and construction management, or EPCM, contractor for the Stibnite Gold Project in Idaho.

Hatch will be responsible for process plant and site infrastructure engineering and design, procurement management, construction management, and integrated project controls, Perpetua said.

Additionally, Hatch will make a $4 million equity investment in Perpetua Resources through a private placement of 138,696 common shares priced at $28.84 per share, Perpetua Resources said.

Perpetua and Hatch are negotiating the final terms of the contract, which is expected to be completed in the coming weeks, the company said.

Shares of Perpetua Resources were down 1.2% in recent Tuesday premarket activity.