OPK refers to Originality Produces Know-how. It is a subsidiary company of Okudaya Giken Co Ltd, a premier material handling equipment producer. OPK specialises in hydraulic lifting systems, and first achieved mass production of Hand Pallet Trucks in Japan in 1964. In pursuit for sustained excellence, OPK successfully obtained ISO 9001 certification in 2001, and ISO 14000 certification in 2004. With over 70 years of experience, our customers could expect to be provided with complete material handling solutions.