Tiga Sekawan Enjiniring is one of the Indonesia region’s leading Aboveground Storage Tank (AST) inspection and certification authorities with more than 10 years’ experience in the field. Strictly working to American Petroleum Institute Standards API 650 and API 653, Tiga Sekawan Enjiniring provides the highest quality inspection and verification for safe and uninterrupted storage tank operation. Dome or Floating tanks as well as Cryogenic and special designs that come under API or other reputed certification agencies can be inspected and certified to full international standards.