Clays Natural Resources Canada
Clays and clay products are produced by three major companies. Estevan Brick (1995) Ltd. has quarries at Estevan, Rockglen, Flintoft, and Readlyn for the manufacture of face brick. Canadian Clay Products Inc. quarries sodium bentonite near Truax, 60 km southwest of Regina, and processes it at its plant at Wilcox to produce swelling bentonite