Systex Products Corporation (SPC) manufactures plastic injection molded components for air conditioning and engine cooling sy ... stems. SPC has two plants in Battle Creek, Michigan and one plant in Osceola, Arkansas. SPC is a subsidiary of Shimizu Industry Co., Ltd. and part of the DENSO Corporation family of companies. Both Shimizu Industry and DENSO Corporation are headquartered in Kariya, Aichi Prefecture, Japan, with a global presence in 35 countries and regions. read more