Group 1 - The core viewpoint of the article is that Sanan Optoelectronics (600703.SH) is actively involved in the production of indium phosphide epitaxy, which is primarily used for manufacturing optical technology chips [1] - The applications of these chips include access networks, telecommunications transmission, data centers, and sensing fields [1]

Group 1 - The core viewpoint of the article is that Sanan Optoelectronics (600703.SH) is actively involved in the production of indium phosphide epitaxy, which is primarily used for manufacturing optical technology chips [1] - The applications of these chips include access networks, telecommunications transmission, data centers, and sensing fields [1]