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| 1. Articles of Association : No. 3 Date July 24th, 1999, Notary Ani Suryani, SH |
| 2. Deed of Amendment to Articles of Association : No. 1, Date February 3rd, 2025, Notary Mohamad Fajri Mekka Putra, SH, M.Kn |
| 3. Taxpayer Identification Number 0019.6343.4401.5000 |
| 4. Confirmation Letter of Taxable Entrepreneur PEM/00539/WPJ.04/KP.0303/2013 |
| 5. Business Registration Number 8120103891262 |
| 6. Confirmation of the Suitability of Spatial Utilization Activities 19042210213174159 |
| 7 Certificate of Member Gapensi 04.2018.31.3171.017480 |
| 8 Certificate of Member KADIN 24293174-25050932002 |
| 9. Certificate of Member APTEK : 00649-P/033-11/03/2025 |
| 10. Certificate of Registered Supplier PT. PLN Nusantara Power : 080015/SCM/DPP/2025 |
| 11. Certificate of Replacement for Administrative Documents SKK Migas : 89892/TIARABUMI/2026 |
| 12. Certificate of Business Entity for Electric Power Supporting Services: 1859.01.G25 |
| 13. Certificate of Construction Services Business Entity for Water Pipeline Installation : 812010389126200260013 |
| 14. Certificate of Construction Services Business Entity for Heating and Geothermal Installation.: 812010389126200300017 |
| 15. Certificate of Construction Services Business Entity for Oil and Gas Installations.: 812010389126200300018 |
| 16. Certificate of Construction Services Business Entity for Other Construction Installation, Not Elsewhere Classified. : 812010389126200300016 |
| 17. Certificate of Construction Services Business Entity for Structural Steel Erection : 812010389126200300019 |
| 18. Certificate of Construction Services Business Entity for Air Conditioning and Ventilation Installation. : 812010389126200390001 |
| 19. Certificate of Construction Services Business Entity for Other Building Construction. : 202602271352210776453 |
| 20. Decree of Appointment for Occupational Safety and Health Service Company in Pressure Vessel.: 5/000754/AS.01.02.3196.2.21/VI/2025 |
| 21. Decree of Appointment for Occupational Safety and Health Service Company in Fire Protection Facilities : 5/846/AS.01.02/VII/2025 |
| 22. Decree of Appointment for Occupational Safety and Health Service Company in Steam Vessel : 5/001263/AS.01.02.6333.2.20/X/2025 |
| 23. Certificate of Registered Vendor in PT.Pertamina (Persero) : 0000120667 |
