A bill relating to the tariff treatment of zinc-bearing ores, zinc dross and skimmings, zinc waste and scrap, unwrought zinc, and certain zinc-bearing materials.

[AI summary unavailable — showing source text] Amends the Tariff Schedules of the United States to grant duty-free treatment under column one and column LDDC (relating to least-developed developing countries) to: (1) zinc-bearing ores; (2) zinc dross and zinc skimmings; (3) materials containing zinc; and (4) zinc waste and scrap. Suspends the duty on unwrought zinc through December 31, 1987. Terminates for any year after 1984 rate reductions made before July 1, 1984, on zinc-bearing ores, zinc dross and zinc skimmings, zinc waste and scrap, and materials containing zinc.…