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DongKoo Bio & Pharma Co.,Ltd.
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DongKook Pharmaceutical Co., Ltd.
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KC Cottrell Co.,Ltd.
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Doosan Enerbility Co., Ltd.
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HYUNDAI HEAVY INDUSTRIES CO.,LTD.
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GS Engineering & Construction Corp.
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KUMHO Engineering & Construction Co., Ltd.
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HYUNDAI ENGINEERING & CONSTRUCTION CO., LTD.