Trecora Resources engages in the manufacture and sale of petrochemical products and synthetic waxes; and provision of custom processing services. It operates through the Petrochemical and Specialty Wax segments. The Petrochemical segment is conducted through South Hampton Resources, Inc. (SHR), which produces high purity hydrocarbons and other petroleum based products; and Gulf State Pipe Line Co, Inc., which owns and operates pipelines that connect the SHR facility to a natural gas line, to SHR's truck and rail loading terminal, and to a major petroleum products pipeline owned by a third party. The Specialty Wax segment is conducted through Trecora Chemical, Inc., which produces specialty polyethylene and poly alpha olefin waxes. The company was founded on May 4, 1967 and is headquartered in Sugar Land, TX.