The IZA Africa Desk is focused on the promotion, support and marketing of zinc in all its applications in Africa and more specifically in Southern Africa. The largest proportion of refined zinc used in South Africa and Africa, is utilized in hot dip galvanizing plants and in continuous galvanizing plants. While much smaller quantities of zinc are utilized as an additive to grain fertilizers, in zinc die cast metal components, as a catalyst for vulcanizing rubber tires and in the preparation of zinc ointments and medicinal lozenges.