It has been over 30 years since Shenjia Ferroalloys Co. Ltd. Started to produce medium/low carbon ferromanganese (hereafter abbreviated to MC FeMn). After many improvements, the current two-step pre-smelt process was adopted. The two steps are all done in shaking ladles. The first step is to react SiMn with MC FeMn slag of the previous heat which containsrich MnO, giving SiMn with low Si content. The secondstep is to react the SiMn from the first step with Mn ore and lime, giving SiMn with still lower content which is used for the production of qualified MC FeMn. Since the two-step process is an improvement over the previous one-step process, the emphasis of this paper will be placed on the problems relevant to the second step and the main improvement of technical and economical indexes after upgrading the production process
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