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近年来,由于原材料、能源调价影响,锰矿石生产成本逐年升高,大部分矿山出现亏损现象。为此,经国家物价局和冶金工业部以(90)冶经字第383号文批准,自1990年7月10日起,在国营锰矿山对冶金锰矿石实行调价,不同品级的成品锰矿石比原价格上调33—54元/t,富锰渣按照比价关系,由冶
In recent years, due to the impact of raw material and energy price adjustment, the production cost of manganese ore has been increasing year by year, and most of the mines have experienced losses. To this end, the State Price Bureau and the Ministry of Metallurgical Industry to (90) Metallurgy No. 383 approved the text, since July 10, 1990 onwards, in the state-run manganese ore metallurgical manganese ore price adjustment, different grades of finished manganese ore Than the original price increase 33-54 yuan / t, manganese-rich slag in accordance with the parity relationship, by the rule