Thin-film Lithium Niobate(LNOI)：8-inch wafer volume production realized by TDG & Jingzheng with yield above 88%, widely adopted in 1.6T/3.2T optical modules, space-borne optical communication and FMCW vehicle LiDAR.
Nonlinear laser crystal: Castech retains ~70% global share of BBO/LBO; revenue rises 13.68% YoY on robust ultrafast laser demand; Faraday rotators in small-batch shipment.
Infrared single crystal: Ge, ZnSe, CaF₂ from Guangzhi Technology fully support automotive infrared, security thermal imaging and semiconductor equipment windows.