BASF is planning to build a vitamin B2 plant in Gunsan, Korea. The plant, with a projected annual capacity of 3000 metric tons, is based on a technology developed by BASF itself, designed to overcome perceived weaknesses in the multi-stage synthetic chemical process. BASF has developed a single-stage biocatalytic process based on fermentation of the fungus Ashbya gossypii, in a process developed in co-operation with the University of Salamanca.