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St. Theresa Industries has been accredited with ISO 9001:2008 certification with Sri Lanka Standard Institution (SLSI).
Courtesy visit to the Honorable Minister Mahinda Amaraweera
STI Launching “INNOVATAINERS”
STI Launching “Easy Building”
STI Holdings conducts helical pile and load testing demonstration successfully
Highlights from Techno Awards Night 2019
SINO STI factory at Paniadiya, Norochcholai
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