David M. Gee

Norwall Group, Inc. manufactures residential wallpapers and borders. The firm also distributes products to home centers, specialty stores and mass merchants. The company was founded on June 28, 1990 and is headquartered in Toronto, Canada.

Marsulex, Inc. provides industrial services, primarily environmental compliance solutions for air quality control and industrial hazardous waste streams. The company produces and markets sulphur-based industrial and water treatment chemicals in Western Canada. It operates through its four segments: Industrial Services, Western Markets, Marsulex Environmental Technologies and Corporate Support Segment. The Industrial Services segment provides services, including environmental compliance solutions to oil refiners and other industrial customers in the U.S. and Canada. The Western Markets segment produces and provides sulphur enhanced chemicals to industrial customers and supplies alum. The Marsulex Environmental Technologies segment provides environmental systems and services, primarily air quality compliance, to electric utilities, petrochemical and general industrial customers worldwide. The Corporate Support segment provides centralized services, such as finance, information systems, human resources and risk management to the other segments. The company was founded on June 16, 1989 and is headquartered in Toronto, Canada.

Chemtrade Logistics, Inc. provides industrial chemicals and services to customers in North America and around the world. It supplies sulfuric acid, spent acid processing services, inorganic coagulants for water treatment, liquid sulfur dioxide, sodium nitrite, sodium hydrosulfite and phosphorus pentasulfide. The company was founded in 2001 and is headquartered in Toronto, Canada.