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After more than 30 years' rapid growth since the foundation in 1990, CASTECH INC. has become a recognized leading supplier of crystals, optics and laser components in the world. In 2008 CASTECH successfully completed IPO in Shenzhen stock exchange. (Stock Code 002222) Today, at our 450,000 sq ft advanced facility, over 1000 employees are dedicating to satisfy customer needs in terms of performance and cost effectiveness.
Crystals for Laser and Telecom Application:
With more than thirty years' untiring effort, CASTECH has developed flux, Czochralski, water solution and Bridgman-Stockbarger crystal growing technology, now is a worldwide leading supplier with largest mass production lines in the world for LBO, BBO, Nd:YVO4 and KTP. In addition, we also provide CLBO, BiBO, KDP, KD*P, Yb:CALGO, Yb:KGW, Ti: Sapphire, TGG, TSAG, α-BBO and other crystals for laser and telecom industries.

Jiangxi Phenix Optical Technology Co., Ltd. is the first listed company in the Chinese optical industry (SSE code: 600071), which was successfully listed on the Shanghai Stock Exchange in 1997. It covers an area of about 333,000㎡ and employs about 3300 people.Today, Phenix Optics is a leading and internationally professional company, that takes optical precision manufacture as its foundation and centers on photoelectric R&D technology.Phenix Instrument Business Union devotes itself to researching and manufacturing biological microscopes, stereo microscopes, fluorescence microscopes, metallurgical microscopes, digital microscopes, digital interactive labs, and related products. Our products are welcomed all over the world. We have exported to Europe, America, Asia, the Middle East, etc.