About OSC Group

The goal of Oriental Silicas Corporation (OSC) is to continue to be the world’s leading specialty Products Company. Founded in 1978, OSC has global headquarters in Taipei and operates in Taiwan, Thailand, China, Japan and Hong Kong. It manufactures and sells precipitated silica (white carbon), which can be used in tire, Silicon rubber, toothpaste, battery separator, food additive, etc.

Oriental Silicas Corporation has the experience in multinational operation and delivery service. We can offer the best service to the customer around the world with highly efficiency. We are appreciated to hear the information from you around the world.

Our Mission

We promise to our employees, customers and society as below:
- To do well for care system of the community is our responsibility.
- To become the world’s level plant is our target.
- To protect environment and maintain health and safety are our faiths.
- To conitiue to improve quality is our principle.

Management Concept

Honor: study for highest quality.
Duty: practice lowest cost.
Reciprocal: create customer profit.
Share: enjoy reasonable treatment.


  • 1978

        Established Diamond Silica.


        Joint venture with PPG; Renamed PPG Industries Taiwan.


        Founded Siam Silica Co., Ltd. in Rayong, Thailand.


        Founded Nanji Chemical Co., Ltd in Nanchang, China.


        Founded Lianji Chemical Co., Ltd in Lianyungang, China.


        Renamed “Oriental Silicas Corporation”after PPG withdraw strategic Silica business in Asia Pacific.


        Joint venture with Tokuyama Corporation.


        Founded OSC LSCC (Factice) in Lianyungang, China.


        Tokuyama sign-off entire precipitated silica biz; reflecting OSC consolidation rename.


        Founded OSC Japan Co., Ltd. in Osaka, Japan. OSSC for Thai subsidiary from March 2012


        Founded OSC Sodium Silicate Corporation in Taichung, Taiwan.