[Juguang Technology: at present, the company has customers in the field of optical communication in cooperation] May 29, Juguang Technology said on the interactive platform, prefabricated gold tin aluminum nitride substrate material is widely used in chip or device packaging applications in the field of optical communication because of its small size, easy integration, high thermal conductivity and good insulation properties, and high bonding reliability of prefabricated gold tin solder. The company's micro-optical components and microlens arrays can be used in the field of optical communication to achieve optical coupling, optical transmission and other optical functions. At present, the company already has customers in the field of optical communications in cooperation. As for whether these customers make 400G/800G high-speed optical modules, the company does not have the relevant information.