African Explosives and Industries Ltd.
Rand Carbide Ltd.
New Transvaal Chemical Co., Ltd.
Cape Portland Cement Co.
Welman Smith Owen Eng. Corp. Ltd. (S.A. Pty.)
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.
