PT Woolu Sarana Tehnik provides engineering, procurement, construction, and commissioning services for industrial plants in Indonesia. Its services include engineering procurement construction, project management and maintenance services covering steel structures, tanks, pressure vessels, fire hydrant, fire suppression, fire alarm, piping, pneumatic conveying, bunker, silo, mechanical conveyor and civil works. The company also offers technology services in the areas of water treatment plants, municipal solid waste technology and waste water treatment plants. The company was founded in 2011 and is based in Iskandarsyah Jakarta, Indonesia