NICHIA     Japanese LED chip manufacturer,first to develp blue LED chip and puregreen LED chip.

CREE        USA LED chip manufacturer,major products are GaN LED chips with SIC substrate.

SHARP      Japanese leading LED chip manufacturer,specilized in AlGaInP and InGaN LED chips.

OSRAM     German LED chip manufacturer,second Opto-semiconductor manufacturer in the world.

LUMILEDS Leading high power LED chip manufacturer in the world,subsidiary company of Philips.

TOYODA    GOSEI Japanese  LED chip manufacturer,develper of White LED based on UV LED and tri-color phosphor. 

Epistar     Corporation focuses on developing,manufacturing and marketing high brightness Light Emitting Diode(LED) products.