Inner Mongolia Berun Chemical Co Ltd (000683.SZ), formerly Inner Mongolia Yuan Xing Energy Co Ltd, is a China-based company principally engaged in the production and sales of soda ash, baking soda, urea, methanol, and other fertilizers and agricultural production materials; soda ash serves the glass, metallurgy, papermaking, printing and dyeing, synthetic detergents, food, and medicine industries; baking soda supports food, feed, medicine, hygiene, and related sectors; urea facilitates soil and crop growth; and methanol and downstream products such as dimethylformamide and trimethylamine target olefins, formaldehyde, acetic acid, and other applications. The company operates primarily in natural alkali chemicals and coal chemicals, with an annual comprehensive production capacity exceeding 5 million tons, and maintains geographic focus in Inner Mongolia, China, where it advances projects including the Alashan natural alkali facility's second phase for additional soda ash and baking soda output. Founded in 1997 and headquartered in Ordos, Inner Mongolia, the company changed its name to Inner Mongolia Berun Chemical Co Ltd in May 2025 to reflect its strategic emphasis on chemical operations; it recently announced plans to acquire a 10.65% equity stake in Yingen Mining for RMB 2.726 billion to bolster resource integration, while its Q3 2025 net profit fell 46% amid seasonal pressures and rising costs, though ongoing expansions position it for future growth.