Primero Mining Corp
A Canadian precious-metals company that mined gold and silver from the San Dimas mine in Durango, Mexico, a site in continuous production for more than a century. Founded in Toronto in 2007, its name comes from the Spanish word for "first." The historic San Dimas mine, where modern mining began in 1883, was acquired by Primero in 2010 before First Majestic Silver bought the company in 2018.