Field Lonquist Service LLC

Headquartered in Houston, Texas, TPC Group Inc. is a leader in providing highly specialized lines of chemical products to major chemical and petroleum-based companies worldwide. As one of North America s largest producers of finished butadiene and one of the largest producers of butene-1, companies around the globe rely on the company as their dependable supplier for hydrocarbon processing and other specialty chemicals. TPC Group is one of the main producers of chemical grade diisobutylene in North America and the second largest active merchant producer of high purity isobutylene in North America. Its products are sold to a wide range of performance, specialty and intermediate markets, including synthetic rubber, fuel additives, plastics and surfactants. TPC Group operates manufacturing facilities in the industrial corridor adjacent to the Houston Ship Channel, the heart of the world s largest chemical processing center. In addition, the company operates facilities in Port Neches and Baytown, Texas, as well as a product terminal in Lake Charles, La.