CASTECH.CASTECH was established in 1990 by the Fujian Institute of Structure Chemistry, Chinese Academy of Sciences. With the mission of being a “powerful driver of the optoelectronics industry,” CASTECH has become a globally renowned leading manufacturer of LBO crystals, BBO crystals, Nd:YVO₄ crystals, ultra-precision optical components, diffractive optical elements, high-power optical isolators, acousto-optic devices, and electro-optic devices. The company's products are widely applied across numerous industrial sectors, including lasers, optical communications, AR/MR, life sciences, autonomous driving assistance, environmental monitoring equipment, and precision testing and analytical instruments. CASTECH currently operates modern office and production facilities spanning over 40,000 square meters. It has developed multiple crystal growth technologies including the molten salt method, Czochralski method, and aqueous solution method. The company has established advanced ultra-precision optical production lines for holographic gratings, aspherical CNC grinding and polishing, ion beam polishing, magnetorheological polishing, large-scale dual-polishing, and ring-polishing. It also employs various coating processes such as IAD, IBS, and MS to meet the application needs of different market segments. The company holds ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System certifications, and achieved IATF 16949 Automotive Quality Management System certification in 2020. Dual IATF and ISO systems integrate every stage from R&D to production and from pre-sales to after-sales, encompassing the entire process from corporate management to customer satisfaction. Primary products include: crystal components, precision optical components, laser devices, and precision optical inspection instruments.
