Kongo Chemical Co., Ltd. was established in October 1941 to manufacture Vitamin B1 and its derivatives and celebrated its 70th Anniversary in 2011. At that time, Kongo was one of the rare chemical companies specialized in organic synthesis on industrial scales in Toyama Prefecture. Since its establishment, Kongo has been contributing to domestic as well as foreign pharmaceutical companies through manufacturing of various active pharmaceutical ingredients (APIs) and pharmaceutical intermediates.In recent years, Kongo has been aggressively devoting custom synthesis of intermediates with complex structures for new medicines,