| Company/Address | System | Country | Scope | Date of original | Date of certificate | Valid Untill | Status |
| AQUATREAT CHEMICAL CO.,LTD./ 300 Moo 4, Ban Pho Subdistrict, Mueang District, Nakhon Ratchasima Province ,Thailand | ISO9001:2015 | Thailand | “Providing and Repacking of Chemical for Water Treatment “ | Jan 14’2022 | Jan 14’2022 | Jan 13’2025 | Accepted |