| Company/Address | System | Country | Scope | Date of original | Date of certificate | Valid Untill | Status |
| Aszemtech Company Limited. 259 Moo 6 Tambon Banphet, Amphur Phukhiao, Chaiyaphum Province 36110 | ISO9001:2015 | Thailand | “The manufacturer and trading of traffic equipment such as W-Beam guardrail and post, lighting poles, lamps, road stud, traffic signs and road signs etc. “ | Oct 4’2023 | Aug 2’2024 | Oct 3’2026 | Accepted |