Founding of a hardware store in Mülheim an der Ruhr
Wilhelm Grillo was one of the founding fathers of industry in the Ruhr region. He was a man with enormous energy, visionary thinking and social involvement, and he started an impressive business development programme in 1842, when he was just 23. A hardware store in Mülheim an der Ruhr was followed by a zinc rolling mill in Duisburg-Neumühl in 1849. Only a few years later – in 1855 – he founded the first production plants for zinc oxide in Oberhausen, alongside two rolling mills and a gas production plant.
From 1881, the crude zinc needed by the plants in Oberhausen was produced in a proprietary smelting plant in Duisburg-Hamborn. Liquid sulphur dioxide and sulphuric acid were by-products of this process. Today the headquarters are in Duisburg-Hamborn.