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据美国矿务局统计,1980年我国对美国出口钨金属量900余吨(其中绝大部分是钨精矿),约占美国总钨消费量(9165吨)的10%,并占美国净进口量近20%。美国李钨公司是我国钨精矿的最大受主,它占1980年我国对美国出口量的60—70%。“美国金属市场报”报导,1981年我国首次对美国市场出售钨粉,并希望到1982年能对美国出口90余吨钨粉和仲钨酸铵。
According to the statistics of the United States Bureau of Mines, in 1980, China exported more than 900 tons of tungsten metal to the United States (most of which were tungsten concentrates), accounting for about 10% of total tungsten consumption in the United States (9,165 tons) and accounting for net U.S. imports Nearly 20%. Lee Tung Company is the largest recipient of tungsten concentrates in China, accounting for 60-70% of China’s exports to the United States in 1980. The United States Metal Market newspaper reported that for the first time in 1981 China sold tungsten powder to the U.S. market and hoped to export more than 90 tons of tungsten powder and ammonium paratungstate to the United States by 1982.