Charles L. Mears

Pioneer Cos., Inc. manufactures and distributes chemical and related products. Its products include chlorine and caustic soda. The company was founded in 1988 and is headquartered in Houston, TX.

CMC Materials KMG Corp. engages in the production and distribution of specialty chemicals. It operates through the following segments: Electronic Chemicals and Performance Materials. The Electronic Chemicals segment sells wet process chemicals primarily to the semiconductor industry. The Performance Materials segment includes the pipeline performance and wood treating chemicals business platforms. The company was founded in 1992 and is headquartered Fort Worth, TX.

Occidental Chemical Corp. manufactures polyvinyl chloride resins, chlorine and caustic soda. It also offers basic chemicals, oxyvinyls, food grade and armand products. The company was founded in 1988 and is headquartered in Dallas, TX.

Chlor-Alkali Holdings Pty Ltd. operates as a holding company with interests in manufacturing and distribution of salt and chlor-alkali products. It offers chlor-alkali products such as bulk chlorine, caustic lye and hydrochloric acid. The firm operates through subsidiaries such as Walvis Bay Salt Refiners, Botswana Ash and NCP Chlorchem. The Walvis Bay Salt Refiners supplies industrial salt to the chlor-alkali industry and also produces household salt for the southern African market. The company was founded in 2002 and is headquartered in Kempton Park, South Africa.