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        CASTECH Inc. is mainly engaged in the nonlinear optical crystal, R & D laser crystal and precision optics components, production and sales of its products are widely used in industrial laser, optical communications. The company is headquartered in Fuzhou, with modern office and production plant, with a total area of over 40,000 square meters, employs nearly 900 people. March 2008 the company listed (stock code 002222) on the Shenzhen Stock Exchange SME board.

        Crystal Products

        Precision Optics

        Laser Components