Leshan Kai Yada Photoelectric Technology Co.,Ltd.,founded in 2003 September, is a professional R & D, production, processing and sales of compound semiconductor materials, optoelectronic materials of private enterprise, located in Leshan high tech zone.2006 was identified as high-tech enterprises,the same year the development of indium antimonide single crystal won the Science and technology progress award. For 13 years,The Company specializes in the production and purification of minor metals such as Tellurium,Antimony ,indium,selenium and Bismuth as well as inorganic chemicals based on such metals and compound semiconductor: High-Purity metals(4N-7N): Tellurium(Te)for CdTe thin-film solar cells,CZT single crystal and other alloy; Antimony(Sb)for InSb&GaSb single crystal,Sb2O3 and other alloy; Oxygen-Free Selenium(Se)for far infrared optical glass and CIGS&CIS thin-film solar cells; Bismuth(Bi)for high-purity Bi2O3… Indium(In)for InSb,InP,InN single crystal and CIGS&CIS thin-film solar cells