About Tronox Alkali

Tronox Alkali operates a multi-faceted mining and production facility in Green River, Wyoming, supplying some of the best-known products used around the globe. We are the world's largest producer of natural soda ash and strive to harness the latest technological innovations to better serve our customers.

Tronox Alkali employs approximately 950 people at eight processing plants and an underground mining operation that is 1,600 feet (488 meters) below the Earth's surface. We are proud of employing several generations of reliable, hard-working families over many decades and are determined to maintain a culture of safety as a core value.

50 Million Years of History

The Green River story began some 50 million years ago, when this Wyoming site was at the bottom of a 1,000 square-mile body of water called Lake Gosiute. Over millions of years, runoff from the surrounding mountains carried sodium-rich compounds into the lake. That sodium reacted with carbon dioxide to form the mineral called trona. In time, this reaction created the largest trona deposit in the world, and, as Lake Gosiute dried up, an estimated 130 billion short tons (1.18 billion metric tons) of trona were deposited across the Green River Basin.

Trona is the mineral name for a chemical called sodium sesquicarbonate - what we call Sesqui™ Since discovery of the trona beds in 1938, the Green River Basin has become the preferred source of high quality soda ash and other sodium products that ship worldwide.

Vital to Everyday Products

Trona is an essential component in making glass, fiberglass, tableware, lighting, and display screens for consumer electronics. Used both domestically and internationally, trona is a key ingredient in detergents and is a building block for many other chemicals. It is also used in animal feed, food grade products, and pharmaceuticals.

The Green River operation has been mining trona for roughly seven decades and today produces more than 4 million short tons (3.63 million metric tons) annually. Tronox Alkali ships approximately 40,000 railcars and 5,000 truck orders of trona each year. And we do it all more efficiently and economically, on a delivered basis, than synthetic competitors anywhere in the world. Tronox Alkali has its corporate offices in Philadelphia.