Hangzhou Kaiyada Semiconductor Materials Co., Ltd.

R&D, production and sales: semiconductor materials, optoelectronic materials; import and export of goods and technology; sales of electronic products; operation without storage (wholesale operation without warehousing) other hazardous chemicals: lead monoxide, cadmium oxide [non-pyrophoric] ], sodium tellurite, copper nitrate, cadmium nitrate, bismuth nitrate, zinc selenide, lead selenide, cadmium selenide, selenium, antimony pentoxide, tin tetraiodide, cerium [powder, chips], gallium arsenide , antimony trisulfide, antimony triiodide, sodium hydroxide, potassium hydroxide, hydrobromic acid, hydroiodic acid, cadmium chloride, cadmium sulfate, mercury sulfide, cadmium sulfide, gallium, cadmium [non-pyrophoric], fluorine Lanthanum, selenium dioxide, selenium disulfide, titanium disulfide, cadmium telluride, ammonia solution [containing ammonia >10%]; sales: rare earth** (projects subject to approval according to law can only be operated after approval by relevant departments) Activity)