The Brick and Potteries Co., Ltd.
W.W. Rand Co-Operative Smarting Works Ltd.
African Perfected Products (Pty.) Ltd.
Magadi Soda Co.
Mavor and Coulson (S.A.) Ltd.
South African Breweries, Ltd.- J.C.I.
Reunert and Lens
St. Johns Marble and Base Minerals Ltd.
African Oxygen and Acetylene Pty. Ltd.
Hume Pipe Co.
