A Lean Specialist in Asset Integrity
Expert Test Co., Ltd. delivers NDT, inspection, engineering and statutory certification with A-grade inspectors and none of the big-firm overhead — from our base in Rayong, Thailand.
Who We Are
Expert Test Co., Ltd. (บริษัท เอ็กเพิร์ท เทส จำกัด) is a 100% Thai-owned engineering and inspection company founded in 2024 and headquartered in Huai Pong, Muang Rayong — at the heart of Thailand's petrochemical and refining heartland. We focus on solving the inspection problems that conventional methods struggle with: corrosion under pipe supports, touchpoint access without shutdown, and qualified manpower on demand.
Our model is deliberately lean. We invest in equipment, certifications and qualified people rather than expensive offices and idle staff benches — which is how we deliver code-grade quality at direct, transparent rates.
Certifications & Accreditations
Leadership
Mr. Boonmee Channongsroung
Managing Director
Authorized company director responsible for corporate governance and binding commitments.
Mr. Rakchat Inthaphio
General Manager · QMR · Technical Manager
Primary client-facing manager leading commercial and technical coordination and the ISO 9001 quality management system.
Technology Partners
Escon Dhvani
Expert Test is the appointed Thailand representative (agreement 3 February 2026) for HOMC Higher Order Mode Cluster guided-wave corrosion sizing.
AMS
Access-technology partner supporting Ovolift touchpoint inspection — safe pipe-support access without scaffolding or cranes.
Work with a lean specialist team
Tell us about your inspection scope and we will mobilize the right people and methods.
Get in Touch