About Us

Pioneering a Brighter, Sustainable Tomorrow.

DSI, Oversea affiliate of Dongsuh Chemical in KOREA, was Established in 2012 and have been produced Naphthalene based concrete admixture with the production facilities of 60 thousand tons capacity every year, PCE 30 thousand tons capasity every year and High Purity Naphthalene (99% - 3.500 tons/year) & (99,9% - 3.500 tons/year).

DSI is now making global network, where Dongsuh Chemical placed and setting up sales plan to global market, not only produces DSI high quality PNS, PCE and HPN with stable naphthalene supply from KPDC (Krakatau Posco Dongsuh Chemical), but also supply to lots of local global companies as a market leader of PNS in Southeast Asia.

Recently, DSI makes a change through the product diversification. Na PNS (Existing Product), Ca PNS (Gypsum Board Friendly Product), PNS for dyestuff, PCE (Polycarboxylate Ether), Crude Naphthalene (95%), High Purity Naphthalene (99%, 99,9%), Slag and Hard Pitch.
DSI dreams a giant leap for The PNS market through the various product lines which will satsify customer’s needs. Also, we are continously making an effort to be a global leader, moreover, to be highest position in the construction chemical business.

Before PT. Dongsuh Indonesia

DSC was estabilished on june 1st, 1974 in Pohang Korea and since it has produced coal tar enamel that is heavy duty coating for internal and external surface of steel pipes for water services, it grew up to be a unique specialized maker of paints for steel pipes in Korea and has led the domestic market of paints for steel pipe coatings. We have contributed not only lots of coal tar products, but also to the safety of the people by developing fire resisting paints for the first time in Korea, and then DSC’s coal tar business has been in progressed 95% naphthalene, carbon black oil, fuel oil etc.

DSC advanced the building material business based on the naphthalene in 2014. Especially, we are treading on the concrete admixture market actively and built a production facility of about 30 thousand tons at factories in Pohang every year focusing on PNS to ensure internal staility in the domestic market. on the other hand, we built additional factories with the same output PT. DONGSUH INDONESIA (DSI) to secure the PNS output of about 60 thousand tons and PCE about 30 thousand tons.