Founded by Mr. Markus Setiawan in 1986, PT Karunia Setia Jaya is a leading manufacturer of high-quality aluminium products for the automotive, marine, and architectural industries. Based in Curug, Tangerang, we manufacture aluminium window frames, marine equipment, and architectural aluminium solutions using Aluminium Alloy 6063 that complies with Indonesian National Standards (SNI).

Our architectural product range includes aluminium doors, windows, louvres, window frames, and other custom fabrications for residential, commercial, and industrial buildings. We also produce marine products such as watertight doors, cabin doors, and manholes.

With over 39 years of experience, we have supplied customers across Indonesia, delivering customized, high-quality products backed by technical expertise, reliable service, and on-time delivery to ensure complete customer satisfaction.