Opus One Gold Corporation engages in the acquisition, exploration, and evaluation of mineral properties in Canada. The company explores for gold and base metals. Its flagship project is the 100% owned Noyell gold property, which consists of 84 cells covering an area of 4,482.34 hectares in the Noyon and Le Tardif townships in the northwestern portion of the Abitibi subprovince of the Superior province. The company was formerly known as Opus One Resources Inc. and changed its name to Opus One Gold Corporation in October 2020. Opus One Gold Corporation was incorporated in 1979 and is headquartered in Saint-Lambert, Canada.