1997 ݵü ڵȭкǰ 2001 ȸ. ݵü ߱̿(LED) ϰ , Ȯ ǰ ȭ ϰ ִ. ַ ǰ ݵü 漭 1998 ʷ ȭ װ, LED 漭 쵵 2008 ȭߴ.
ݵü 漭 ݵü İ Ѵ. Ĩ ϴ ϼ Ĩ ǰ μȸα(PCB) ϱ ϴ ġ. İ ϼ Ĩ ˻ϰų ϴ ̴. 漭 ֿ ó Z, ũ ̸, 92% ø ִ.
߰ ǰϰ ִ Ǹ ϰ ִ. ο 7% ´. Ǹ ڵȭ, ݵü ý, ڵȭ ȴ. ̿ ġ аų ϴ ġ.
ֱ ֿ Ȯ밡 ݿ 漭 ߴ. 1б 149 41% ߴ. 30 55% þ, 30 81% þ.
ROE 30%, PBR 1
ڿ ROE & PBR Ʈ Ʈ ڽ ݵü ߿ ROE PBR зƴ. Ʈ 4и ϴܿ ġ ִ. ڸ ڽ ݵü ߿ ڱں(ROE) ְڻ(PBR) Եȴ. 1б ȯ(ֱ 4б ջ) ROE 30%, PBR 1.
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