Alio Gold Inc., through its subsidiaries, engages in the acquisition, exploration, development, and operation of mineral resource properties in Mexico. It primarily sells gold and silver. The company’s principal assets include its 100% owned and operating San Francisco open-pit, heap leach gold mine in Sonora, Mexico; and its 100%-owned development stage Ana Paula Project in Guerrero, Mexico. The company was formerly known as Timmins Gold Corp. and changed its name to Alio Gold Inc. in May 2017. Alio Gold Inc. was incorporated in 2005 and is headquartered in Vancouver, Canada.