Charles Stevens

Tenneco, Inc. engages in the design, manufacture, market and sale of innovative clean air, powertrain and ride performance products and systems. It operates through the following segments: Motorparts, Performance Solutions, Clean Air, and Powertrain. The Motorparts segment consists of a portfolio of brand-name products in the global vehicle aftermarket within seven product categories including shocks and struts, steering and suspension, braking, sealing, engine, emissions, and maintenance. The Performance Solutions segment designs a variety of products and systems designed to optimize the ride experience of the global customer base, including noise, vibration, and harshness performance materials, advanced suspension technologies, ride control, braking, and systems protection. The Clean Air segment offers products and systems designed to reduce pollution and optimize engine performance, acoustic tuning, and weight on a vehicle for light vehicles, commercial trucks, and off-highway original equipment customers. The Powertrain segment focuses on original equipment powertrain products for automotive, heavy duty, and industrial applications. The company was founded on April 1, 1940 and is headquartered in Skokie, IL.

Adam Opel GmbH engages in the management of its own assets and participations in other companies. It also manages the company's pension obligations. The company was founded on August 01, 1862 and is headquartered in Ruesselsheim am Main, Germany.

General Motors of Canada Co. manufactures and distributes automobiles and motor vehicle parts. It produces models such as Chevrolet Impala, Buick Allure, Pontiac Grand Prix and Chevy Silverad. The company was incorporated in 1918 and is headquartered in Oshawa, Canada.

General Motor North America designs and manufactures automobiles. The company is headquartered in Nutting Lake, MA.