Simon H. Upfill-Brown

Trecora Resources engages in the manufacture and sale of petrochemical products and synthetic waxes and the provision of custom processing services. It operates through the Specialty Petrochemical and Specialty Waxes segments. The Specialty Petrochemical segment produces high purity hydrocarbons and other petroleum-based products including isopentane, normal pentane, isohexane, and hexane. The Specialty Waxes segment manufactures specialty polyethylene and poly alpha olefin waxes and provides custom processing services. The company was founded on May 4, 1967 and is headquartered in Sugar Land, TX.

GreenFuel Technologies Corp. recycles carbon dioxide from flue gases to produce biofuels and feed. It develops algae bioreactor system that recycles CO2 in smokestack gases into biofuels such as biodiesel and methane. The company was founded by Isaac Berzin in January 2001 and is headquartered in Cambridge, MA

Terrabon LLC operates as a bioenergy technology company focusing on the commercialization of renewable biofuels and industrial chemicals. The company was founded by David S. Carrabba and Emil E. Ogden in 1995 and is headquartered in Bryan, TX.

Johann Haltermann Ltd. manufactures organic chemicals. The firm offers lines of solvents and specialty products to the chemical industry. Its products include oxygenated solvents & intermediates, aromatic solvents & intermediates and performance urethanes intermediates. The company was founded in 1978 and is headquartered in Houston, TX.

Texas Oil & Chemical Co. II, Inc. provides petroleum refining services. The company is headquartered in Silsbee, TX.

South Hampton Resources, Inc. is engaged in manufacturing petrochemicals. Its products include normal pentane, isopentane, isohexane, cyclopentane, and petroleum ether. The company was founded by John Breaker in 1955 and is headquartered in Silsbee, TX.

Trecora Chemical, Inc. manufactures polyethylene wax products. It offers toll manufacturing services that include synthesis, distillation, blending, forming and packaging, condensation, oxidation, polymerization, and short path and conventional distill. Its products are also used additives for coatings, hot melt adhesives, and lubricants. The company was founded in September 1989 and is headquartered in Pasadena, TX.