GMA
Gumai Optoelectronics (838220) was established in 2009 and restructured into a joint-stock company in 2015 with a total share capital of 67.3 million shares. It is a national high-tech enterprise specializing in the research, development, production and sales of optical, optoelectronic components, semiconductor components and materials, industrial control, and Internet of Things application products. It is one of the few companies in China that can provide overall solutions for light sources, optical transmission, and secondary optical effects.