OSS manufactures and services high quality down-hole tools and drill stem components that are used primarily by the oil, gas and mining exploration and production industries.

Since the company headquarters’ inception in Singapore, 1999, OSS has met the dynamic needs of the drilling industry and complied with tighter tolerances required for many innovative and complex products. With the opening of the company’s 8th satellite workshop in Labuan, East Malaysia in 2013, OSS is strategically located to offer short turnaround time and integrated after-sales services to our customers, without sacrificing on quality and price.

A skilled workforce, a well organized manufacturing facility as well as dedication to quality and service form the foundation of our business. Today, OSS has successfully implemented a quality management system that complies with the ISO (International Organization for Standardization) 9001 standard, ISO9001:2008 which also incorporates the American Petroleum Institute Standard (API), namely API Specification Q1 and API Spec 7-1 with API Monogram license.