Sun Siam Co., Ltd. has been manufacturing full range of automotive and industrial lubricants under brand name "SUN'SOIL" with the slogan “Supreme Quality” since it started formal operation in 1986. We offering high quality products at reasonable price, while maintaining quality and delivery time. We also offer other services such as laboratory tests. Our manufacturing processes are certified ISO 9001:2008 standard by Bureau Veritas (BVQI). SUN'SOIL & SUN SIAM Co., Ltd. are also received many awards such as “Environmentally Friendly Factory Award” from Thailand Ministry of Industry (2006), “Product Award” from government sector (1989), and etc.