Key Players
- Advanced Fiber Resources(Zhuhai),Ltd
- Crystal Technology
- Hefei Kejing Materials Technology Co. Ltd
- Hyperion Optics
- Kaiju Technology Co. Ltd
- Koike
- Korth Kristalle
- Ostphotonics
- Oxide
- Shanghai Kingwin Technology Co. Ltd
- Shin-Etsu Chemical Co. Ltd
- Sumitomo Metal Mining Co. Ltd
- Suzhou Nanzhi Core Materials Technology Co. Ltd
- Tiantong
- Zhejiang MTCN Technology Co. Ltd
