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目前世界上已发现锡矿资源的有40多个国家,截至72年拥有的金属储量共约4～5百万吨,加上近海大陆架等,推断储量可达一千多万吨。近五年来,全世界精矿锡年产量大致保持在22～25万吨的水平。亚非拉发展中国家拥有的锡储量占世界总量的90％以上。精矿锡产量占80％以上,而锡的消费量所占不到10％。同整个“原料和发展问题”一样,第三世界国家维护国家主权,发展民族经济,反对帝国主义、特别是超级大国的掠夺和控制的斗争,在锡业方面也日益激烈。已开发的锡矿床,可概括为冲积砂矿和脉矿两大类,近十年来其产锡比大致为55:45。
At present, there are more than 40 countries in the world that have discovered tin resources. As of 72 years, they have about 4-5 million tons of metal reserves. Together with the offshore continental shelf, the reserves are estimated to reach more than 10 million tons. Nearly five years, the world’s tin concentrate output remained roughly at the level of 22 to 250,000 tons. Tin reserves in Asian, African and Latin American developing countries account for more than 90% of the world total. Concentrate tin production accounts for more than 80%, while tin consumption accounted for less than 10%. Like the entire “raw material and development issues,” the struggle of the third world countries to safeguard state sovereignty, develop the national economy, and oppose the plunder and control of imperialism, especially the superpowers, has also become increasingly fierce in the tin industry. Developed tin deposits, can be summarized as alluvial sand and vein two major categories, the past ten years, its production tin ratio is roughly 55:45.