In 1902, Sharrer formed the British Central Africa Company Ltd to consolidate his interests in the Shire Highlands Railway Company Ltd, his estates, Kubula Stores Ltd and Sharrer's Zambezi Traffic Company.
Pada tahun 1902, Sharrer membentuk British Central Africa Company Ltd untuk mengkonsolidasi kepentingannya di Shire Highlands Railway Company Ltd, usahanya, Kubula Stores Ltd dan Sharrer's Zambezi Traffic Company.