MAS Ball Valves
M.A. Stewart & Sons Ltd., along with its subsidiaries, distributes pipes, valves and fittings, as well as related products and automation packages. The company serves refining, chemical, petrochemical, oil/gas exploration, pulp & paper, mining, plumbing, heating, utility, fire protection, and waterworks industries.
The company was founded in 1955 by Melville Alexander Stewart to be a leading distributor providing quality, reliable products and services to the energy, industrial and commercial markets throughout North America. Headquartered in Surrey, British Columbia, Canada, the company has additional Canadian locations in Alberta, Manitoba, Ontario, Quebec and Nova Scotia, and USA subsidiaries in Signal Hill, Bakersfield, and San Diego, California.