This chapter deals with the technology and management transfer from the German to the Japanese chemical industries during the 1920s and 1930s. It divides the period under study into the 1920s and the 1930s, the two decades when the Japanese market took on significantly different characteristics. The chapter provides a brief overview of the activities of LG. Farben during the two decades, with a review of the technology and management transfer which was effected by its business activities. It focuses on production technology, marketing policy, the distribution system, and personnel management. With the outbreak of the First World War, the German chemical manufacturers were denied access to the Japanese market. In an attempt to fill the suddenly created vacuum, many small dyestuff manufacturing firms cropped up, and, also, large firms like the Mitsui Mining Co. began to undertake dyestuff manufacturing operations.