Sino-Thai Engineering & Construction (STEC) is a SET-listed Thai general contractor — one of Thailand's largest infrastructure + civil-engineering firms. Active across Bangkok mass-transit, expressway, airport, and high-rise construction projects.
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<img src="https://prideshow.org/api/badge/ranking/2026-q2/sino-thai-engineering-and-construction-public-company-limited?style=seal" alt="Ranked #319 in PrideShow Ranking 2026-q2" width="150" />