KTK 

ktk Inc. provides recycled products, expendable items, and stationery office supplies for use in office automation equipment in Japan. It offers repack toners, ribbons, repack gels, cartridges, etc.; and office furniture and equipment. The company is also involved in the sale and maintenance of MFPs, and network security operations; and logistic and warehouse business. It sells its products primarily through the Internet and mail order catalogs. The company was incorporated in 1971 and is headquartered in Nagoya, Japan.