Skip to navigation

Member Companies

ANSAC operates as the international sales, marketing and distribution arm for two leading producers of natural soda ash in the United States. Together, these companies export approximately three million metric tons of natural soda ash annually.

Trona mining and processing is an economic mainstay of the communities of southwest Wyoming. Collectively, ANSAC's member companies operate three plants along the Green River Basin. The mines and processing plants operate 24 hours per day, year-round, and employ a significant number of the people working the area, contributing over $300 million annually to the local economy.

A brief overview of each member company is provided below. Additional information can be obtained by visiting the company's corporate website.

Genesis Alkali Wyoming, L.P.

Genesis Alkali, a subsidiary of Genesis Energy, L.P., is a leading producer of natural soda ash, offering a secure, reliable and diverse range of high-quality product choices. As the industry’s pioneer for natural soda ash mining and processing technologies, Genesis Alkali mines and processes trona ore and manufactures soda ash that is used in the production of glass, detergent formulation, chemical manufacturing, pulp and paper production, and water treatment. It also produces sodium bicarbonate and other specialty products used in common industrial and household applications and animal nutrition. Genesis Alkali’s operations are in Green River, Wyoming (USA), home of the world's largest trona ore deposit.

Genesis Energy, L.P. is a publicly-traded, diversified, midstream energy master limited partnership headquartered in Houston, Texas. Through its Offshore Pipeline Transportation, Chemicals, Onshore Facilities and Transportation and Marine Transportation divisions, Genesis Energy, L.P. provides a suite of efficient and cost-effective supply and logistical services to integrated oil companies, major independent oil and gas and refinery companies, and large industrial and commercial enterprises.

Genesis Energy, L.P is listed on the New York Stock Exchange under the ticker symbol GEL. For more information, visit

Tata Chemicals (Soda Ash) Partners

Tata Chemical’s Green River operation is one of the largest soda ash facilities in North America. The Partnership is 75% owned by Tata Chemicals North America Inc, based in Rockaway, NJ and 25% owned by the world’s largest glass container producer, Owens-Illinois Inc, headquartered in Perrysburg, OH.

The company has over 100 years experience of producing soda ash in North America. Since its start-up in 1967, the company’s Green River, WY operation has been producing high quality soda ash which is used worldwide by the leading manufacturing companies in glass containers, flat glass, sodium chemicals (including baking soda and sodium silicates), and detergents.

The managing partner for Tata Chemicals (Soda Ash) Partners is Tata Chemicals North America Inc., which is a wholly owned subsidiary of Tata Chemicals Limited, headquartered in Mumbai, India.

For additional information, please visit