Headquartered in Surabaya, PT. Kumalajingga Sejahtera (KJS) was founded in 1997. At the early stage of the enterprise, KJS was a vendor for smelter project where it supply different kind of products that were needed on the construction project. As time goes by, KJS spread their wings and able to gain trust to become the vendor in several foreign and multinational companies. Today, KJS has spread its supply into nationwide network  and become a permanent partner with several foreign and multinational companies. 

KJS has a massive stock of products used in the industrial sectors such as abrasive and adhesive products, tools and machinery, pipe and fitting, fastener (e.g bolt, nut) products, and many other consumable products. With the wide variety of products that KJS able to offer in the market, competitive price, and excellent services, KJS aim to be the best one stop shop for the industrial sectors.