American Zinc Association - - Trade organization comprised of primary and secondary producers of zinc metal, zinc oxide and zinc dust marketed in the United States.
Grillo-Werke AG - - Offer a range of zinc products including anodes, strip made , foil, wire and calot.
Horsehead Corporation - - Manufacturer of zinc metal, dust, and powder, as well as zinc oxide, from recycled sources. Headquartered in Pennsylvania, manufacturing in several US states.
International Lead Zinc Research Organization Inc. - - Non-profit research foundation for the purpose of conducting research on behalf of the international community of lead and zinc miners and smelters.
P.R. Chandna - - Outline of the zinc extraction processes.
Ritchey Metals Company Inc. - - Northeast USA manufacture of zinc based alloys for the casting and plating industries.