• Flowing Rock

    We assure you that we will never compromise on quality.

Assurance & Accreditations

Exceeding Industry Standards

Oilfield Services & Supplies Pte Ltd (Singapore) has successfully implemented a quality management system that complies with the ISO (International Organization for Standardization) 9001 standard, ISO9001:2015 which also incorporates the American Petroleum Institute Standard (API), namely API Specification Q1 and API Spec 7-1 with API Monogram license.

Our robust quality control procedures include a single buying house for the entire Group to ensure integrity of raw materials, establishing and tracking pertinent milestones for complex projects and full documentation of all processes and procedures.


Every tool manufactured by OSS is delivered with:

OSS Certificate of Conformity (COC)
3rd Party Inspection Certification
Material Certificate

OSS Certificates