Victor Hepburn

Opta Minerals, Inc. processes, distributes, and sells industrial mineral products. Its products include blast cleaning abrasives, blast cleaning equipments, construction, magnesium, foundry, recycling, steel mills, waterjet cutting, and water filtration. The company was founded on July 8, 2004 and is headquartered in Waterdown, Canada.

Jannock Ltd. offered clay bricks and construction materials. It manufactured and distributed building products for the North American construction markets. The company was headquartered in Toronto, Canada.

Hanson Brick & Tile manufactures and distributes bricks. The company is headquartered in Charlotte, NC.

Walker Industries Holdings Ltd. provides diversified services including construction, emulsions, environmental project and waste management services. It manufactures crushed limestone, sand, including agricultural lime, asphalt aggregates, asphalt products, clear stones, concrete aggregates, granulars and recycled products. The firm also offers environmental waste solutions for private, public and government agencies as well as waste disposal and recycling for industrial, commercial and residential customers. The company was founded in 1887 and is headquartered in Niagara Falls, Canada.

WGI Heavy Minerals, Inc. is an industrial minerals company engaged in the acquisition, exploration, development, and operation of mineral properties. It offers waterjet abrasives, waterjet parts, water filtration media, and sandblasting abrasives. The company was founded in 1988 and is headquartered in Coeur d'Alene, ID.