410 / 78-83 Ratchadapisek Road

S. Tong Chemicals is a leading supplier of active pharmaceutical ingredients and excipients in Thailand for over 20 years. During the span of more than 2 decades, we've established a wide ...

Colotex Bio-technology Co., Ltd. is one of the worlds leading biotechnology enterprises. Our proprietary fermentation technologies and sophisticated R & D skills are effectively integrated to ...