The PFS outlines a mine life of 11 years and total recovered metals of 345,000 ounces of gold, 8 million ounces of silver, 254 million pounds of copper and 626 million pounds of zinc.
Surface exploration drilling returned 73.5 grams gold over 1.3 metres starting from 209 metres downhole and 18.5 grams gold over 5.8 metres from 170 metres downhole.
Alamos will sell a portfolio of 18 royalties to Metalla Royalty and Streaming for $8 million in Metalla shares. Following the transaction, Alamos will own 6.26% of Metalla.