A huge amount of sulfur bearing fume is released from the nickel and copper smelting processes in Jingchuan Group. In 1987 the No.1 sulfuric acid workshop was built and commissioned for sulfur recovery and for control of sulfur dioxide pollution. Afterwards, another three sulfuric acid producing systems and one sodium sulfite producing system were installed. By the end of 2002, the capacity for sulfuric acid production hit 5000kt/a and that for sodium sulfite hit 20kt/a, basically satisfying the requirements for sulfur recovery. According to the development plan of the Jingchuan Group, another new sulfuric acid system with a capacity of 500kt/a will start construction very soon while innovations will be carried out with the existing systems, so as to make greater use of the fumes. The authors have forecasted the development prospects for sulfuric acid production in the group and discussed the factors affecting the productivity.