Explore Our Diverse Range of High-Quality Steel Products

All products are made of the best-qualified raw materials, free from radio-activity and strictly controlled the qualification and quality complying with the high standard through the production process. As a result of high quality production, SYS are certified from many organizations both Thai and International for quality management system (ISO 9001, ISO 14001, TIS 18001, OSHAS 18001, CE Mark, ABS, etc.) and product specifications (TIS, JIS, BS, ASTM, EURONORM, AS/NZS, MS, SNI, etc.).

With the variety of GYS products, we can serve every demand of structural work, support every design in every single field, make your buildings look modern, sophisticate, and identity.