SIOUX CITY -- Sioux City native Dan Greenwell was named chairman of the board for LSB Industries Inc. of Oklahoma City, Oklahoma.

Greenwell has served as the president and CEO of the firm since December 2015.

LSB manufactures and sells chemical products for the agricultural, mining and industrial markets. The company owns and operates Oklahoma-based facilities in Cherokee, Alabama, El Dorado, Arkansas and Pryor, and operates a facility for a global chemical company in Baytown, Texas.