The further development of the business into a vertically structured concern is systematically continued with the expansion of the coal base. In 1889 Krupp acquires a majority stake in the Ver. Sälzer & Neuack colliery in Essen (purchase 1901). After the acquisition of the Hannibal colliery in 1899 Krupp then purchases a 50% shareholding in the Emscher-Lippe coal mine near Datteln (100% in 1928).
