Trecora Resources manufactures and sells various specialty petrochemical products and synthetic waxes in the United States. The Company operates in two segments, Petrochemical and Specialty Waxes. The Petrochemical segment offers hydrocarbons and other petroleum based products, including isopentane, normal pentane, isohexane, and hexane. It also owns and operates pipelines. The Specialty Waxes segment provides specialty polyethylene for use in the paints and inks, adhesives, coatings, and PVC lubricants markets. The Company also provides custom processing services; and produces copper and zinc concentrates, and silver and gold doré.