CONSUMERS' AND SECONDARY SMELTERS' STOCKS OF LEAD 1

1 U. S. Bureau of Mines; beginning 1956, consumers' stocks not separately reported by months. Revised annual totals.

This table is based on "general imports" as reported by U. S. Bureau of Census whereas table L-1 ts based on "imports for consumption" as reported by U. S. Bureau of Customs. Monthly figures of 1957 "imports for consumption" are not available. The minor difference between these two methods of reporting is not too significant in view of the very large quantities of imported lead in both tabulations.

Source: American Bureau of Metal Statistics.

TABLE Z-1.—Unmanufactured zinc-United States production, foreign trade, consumption, ratios of net imports to production and consumption and average market prices, 1938-57

1 Represents recoverable zinc content of domestic ores, concentrates, and tailings.
2 Zinc recovered in all forms from old scrap.

3 Imports: Zinc content of ores, concentrates, gross weight of zinc blocks, pigs, and slabs,
old zinc scrap, zinc dross, and skimmings. Export statistics represent zinc in ores,
concentrates, dross, and skimmings, and zinc blocks, pigs, and slabs.

+ Data represents all slab consumed (estimating that U. S. Bureau of Mines account for 96 percent of all slab zinc consumed) plus the zinc content of pigments and salts made directly from ores, including the estimated quantity of zinc recovered from old scrap and

consumed in forms other than slab.

strategic Government stockpile.

These data do not include withdrawals for the

Average market price of Prime Western Zinc, f. o. b., East St. Louis, as reported by
E. & M. J.

Not available.

1 Estimates.

Source: U. S. Bureau of Mines; U. S. Department of Commerce.

ZINC SUPPLY AND CONSUMPTION IN UNITED STATES AND IN FREE WORLD TABLE Z-2.-Zinc, in the United States

2 Industry stocks: (a) Smelter gained from Jan. 1, 1952, to Dec. 31, 1957, 144,474; (b) consumers gained from Jan. 1, 1952, to Dec. 31, 1957, 23,068. Supply in the United States for the 6-year period exceeded industrial consumption and exports by 1,169,882 tons, or 15.8 percent. The excesses by year were: 1952, 29 percent; 1953, 13.8 percent; 1954, 16 percent; 1955, 7.5 percent; 1956, 17.4 percent; and 1957, 14.2 percent.

TABLE Z-3.-Zinc, 1954 to mid-1957; free-world mine production-Free-world consumption, primary zinc, and free-world excess production

4 Excess of supply over industrial requirements varied from -1.5 percent in 1955 to 9.2 percent in 1956 and averaged 3.9 percent for the 3-year period.

Source: U. S. Department of the Interior.