GREEN TOKAI CO., LTD., (GTC) began operations in May of 1988. GTC is a subsidiary of Tokai Kogyo Co., Ltd. of Aichi, Japan.

GTC has production and warehouse facilities in Brookville, OH and Maysville, KY. The Brookville Plant 1 facility consists of 250,000 square feet and is home to GTC's corporate office. Brookville is also the home of two other facilities; Plant 2 which is 125,000 square feet and Plant 3 which is 88,000 square feet. The Maysville facility was built in 1995 to support company growth and consists of over 140,000 square feet. Both plants are ISO 14001:2015 certified and the Maysville plant is ISO 9001:2015 certified.