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.

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Typical AST inspection and verification programs comply both with API and statutory requirements and will normally include the following test:

  • API 653 Inspector verification
  • Tank Floor corrosion scanning by MFL
  • Tank Floor thickness verification by UTM
  • Tank Floor laser alignment for settling
  • Tank Floor leak testing by Vacuum box and MT
  • Tank structure and foundation survey
  • Tank Shell inspection by UTG with robotic crawler
  • Tank Shell survey by total station laser 
  • Tank shell banding, peaking and ovality verification
  • Tank Roof visual and thickness testing by UTG
  • Floating roof, seal and pontoon verification
  • Crack detection on critical zone by MT or Eddy Current Technology can detect defect under coating.
  • Drone Inspection for interior roof.
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PT. Tiga Sekawan Enjiniring employs several API 653 certified inspectors and certifies several hundred AST’s every year, while maintaining the most advanced inspection/survey systems and inspector training, to conduct inspection and certifications to the highest standard.


Leverage Our Experience and Expertise, Our highly-skilled and experienced engineers ensure the safe operation of your assets through a comprehensive range of service offerings. We provide reliable Storage tank inspection solutions that enable you to bring currently unused tanks facilities back into service.

Why choose Tiga Sekawan Enjiniring.



Our comprehensive suite of services enables us to view our customer’s operation in its entirety and offer holistic solutions across the entire business lifecycle, whichever industry they operate in. We provide solutions from the onset of planning and design, during manufacturing and construction, and throughout operation and optimisation right up to decommissioning.



With an extensive network of multidisciplinary experts is our key success, we are ready to support our customers’ safety and sustainability needs wherever they do business. We partner our customers to access global markets effectively by providing them with one-stop solutions backed by our affiliates in Asia, Europe, the Americas, the Middle East and Africa.

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We add tangible benefits to businesses, enable access to global markets and manage risks by providing testing and certification, knowledge services, inspection and engineering solution. We offer our solutions across customer segments: Chemical industry, Oil and gas industry, Pulp and paper, Palm oil industry , Energy, Healthcare industry, and railway industry.