ABMS SAYS U.S. ZINC STOCKS HIGHER IN FEBRUARY Total U.S. slab zinc stocks held by smelters rose to 24,735 short tons at the end of February from 22,120 short tons at the end of January, the American Bureau of Metal Statistics reported. Zinc production increased to 26,732 short tons in February from 25,786 short tons in January. Shipments from smelters' plants declined to 23,560 short tons in February from 24,564 short tons in January.