American Clean Resources Group, Inc., an exploration-stage company, engages in the mining of gold and silver from its Tonopah property. It also plans to purchase equipment and build a facility on its Tonopah property to provide a permitted custom processing toll milling facility. The company was formerly known as Standard Metals Processing, Inc. and changed its name to American Clean Resources Group, Inc. in June 2022. American Clean Resources Group, Inc. was incorporated in 1985 and is headquartered in Lakewood, Colorado. American Clean Resources Group, Inc. operates as a subsidiary of Granite Peak Resources, LLC.