1990年世界钢铁生产下降导致锰合金(锰铁合金和锰硅合金)需求的减少。来自中国、巴西和东欧的进口货价格低廉,使日本、美国和欧洲对这两种铁合金的需求进一步疲软。尽管产量暂时下降,但是几个生产厂家还是在这一年有新的生产能力投产或宣布建新厂的计划。在南非有两个新锰铁合金炉投产:Transalloys公司投产一个SiMn合金生产炉,Ferallors公司投产一个FeMn合金炉。在法国Usinor Salilor公司 The decline in world steel production in 1990 led to a decline in demand for manganese alloys (ferromanganese and manganese-silicon alloys). The low import prices of goods from China, Brazil and Eastern Europe have further weakened the demand for these two ferro-alloys from Japan, the United States and Europe. Despite the temporary drop in production, several manufacturers are still planning to start production or announce new factories this year. Two new manganese ferromanganese furnaces were commissioned in South Africa: Transalloys commissioned a SiMn alloy furnace and Ferallors started a FeMn alloy furnace. Usinor Salilor in France