Hermann Eckstein & Co
In 1888 Eckstein started his own firm under the name of Hermann Eckstein & Co., in the Corner House as a representative of Jules Porgès. He was instrumental in establishing the Chamber of Mines in Johannesburg, and acted as its first president until 1892. Eckstein put the infrastructure of the mines on a solid footing by using competent engineers, thus turning mere diggings into established industry. He was involved in the move to deep level mining when the surface deposits had run out. By the end of 1888 he was in charge of virtually all the mining activities in the central area of the Witwatersrand, and controlled the eleven most important syndicates.
Extracted from Wikipedia.