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0-pct DCFROR and/or slag fuming Argentina Australia availability curves average total cost beneficiation costs biotite Bolivia Brazil Burma byproduct credits cassiterite concentrate and/or slag costs ranging demonstrated resources deposits evaluated dredge operations Dredge P 15 Electric smelting furnace electrolytic export feed grade figure gravel pump operations Indonesia International Tin Japan lode deposits Malaysia MEC's metric million mt minerals mines and undeveloped mining and beneficiation mining method mt of tin mt/yr Namibia NAp NAp NAp Nigeria Open pit operating costs pct Sn pegmatites Perak Peru potentially recoverable producing deposits producing mines pump P 15 recoverable at costs refined tin Republic Reverberatory smelting furnace slag smelter Southeast Asia tantalum Thailand tin concentrate tin deposits tin from producing tin mines tin prices tin production tin resources tin shed tin-bearing tinplate Total or weighted U.S. dollars underground mines undeveloped deposits United Kingdom weighted-average wolframite Zaire Zimbabwe