Roan Antelope Copper Co.
Wankie Colliery Ltd. (Co.)
Inyaminga (Inhaminga) Petroleum Ltd. Portuguese East Africa
Coal in Portuguese East Africa
Chicoa Silver Mines - Portuguese East Africa
Beira- Mozambique- Portuguse East Africa
Portuguese East Africa - Gazaland-Zambezi-Mozambique-Inhambane-Nyassa (Niassa)
Mozambique Co.(Companhia da Mocambique.)
Mozambique - Portuguese East Africa
Willoughby's Consolidated Co., Ltd.
