The Alchem operation is located in the Green River Basin of Sweetwater County, Wyoming. The facility uses a conventional underground room-and-pillar mining method with borer miners (BM) and currently produces approximately 2.8 million short tons per annum (Mtpa) of soda ash. Tata is currently permitting a 400-ktpa production expansion and expects to increase capacity in two 200-ktpa phases beginning in 2029.