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    POSCO (Gwangyang) Hyundai Heavy Industries Co., Ltd Doosan heavy Industries & Construction KORAIL
    POSCO (Gwangyang) Hyundai Steel Co., Ltd Doosan Engine Co., Ltd Siheung Car Deport
    POSCO Engineering Hyundai Hysco Co., Ltd Doosan Infracore Co., Ltd Sinimun Car Deport
    POSCO E&C Hyundai Wia Corporation Doosan Motrol Bundang Car Deport
    POSCO Steel Co., Ltd Hyundai Precision Industries Co., Ltd STX Offshore & Shipbuilding Co., Ltd Munsan Car Deport
    LG Chem. Ltd (Ulsan) Hyundai Metia Corporation Enpako Pyeongnae Car Deport
    LG Chem. Ltd (Chengju) Hyundai Elevator Co., Ltd Samsung Techwin Co., Ltd Sinbundang Car Deport
    LG HAUSYS KIA Precision Machinery Co., Ltd Samsung Engineering Co., Ltd Busan Vehicle Maintenance team
    LG Electronics Inc. factory 1 Daegu Tech Corporation Samsung Electro-Mechanics Co., Ltd Daejeon Vehicle Maintenance team
    LG Electronics Inc. factory 2 Hankook Hwanak Corporation Hanwha orporation, Yeosu plant Metro Line 2(Incheon)
    LG Household & Healthcare Co., Ltd Daelim Motors Co., Ltd Hanwha Machinery Corporation Seoul Metro
    LG Phillips Display Schaeffler Korea Corp Eaton Industries Corp Incheon Transportation Corporation
    GS Caltex Corporation Sungwon Tech Jeil PMC Corp Samsung ENG (Railroad Depot)
    S&T Dynamics Korea Minting and Security Printing Korea NOK Eagle Corp POSCO ENG (Railroad Depot)
    Tongil Precision Industries Korea Basic Science Institute Samlip Industrial Corp Daewoo E&C Co., Ltd (Railroad Depot)
    Korea NSK KNFC Samlip Electric Corp Seoil Industrial Co., Ltd (Railroad Depot)
    Samsung Climate Control Co., Ltd KEPCO/KPS KCC Army Comprehensive Maintenance Area
    Three star Corporation Oerlikon Leybold Vacuum Korea Mosel Wallpaper Co., Ltd Naval Logistics Command
    Sarik Co., Ltd MVT Sunyoung Chemical Co., Ltd Pyeongtaek 2nd Fleet
    Sammyeong Machinery Industry Co., Ltd Hyundai Engineering and Machinery PK Valve Corporation Naval Operational Command
    Dongwhan Industry Co., Ltd Sungji Precision Industrial Co., Ltd Chogwang I.K.I. Co., Ltd Aircraft Maintenance team
    Korea BASF Co., Ltd Daesin Steel Industry Co., Ltd HAC Valve Co., Ltd Special Weapons Maintenance team
    SSCP Samhwa Tech Samgongsa Corporation Special Aircraft Maintenance team (Jinhae)
    Gyeongnam Metal Corporation Sungchul Corporation NSV Corp Camocarol(US Army)
    DongYang Tech Co., Ltd Daegwang Precision Industries Co., Ltd Taejin Valve Corp The Army 1266 column
    Busan Mold Co., Ltd Sinseung Delta Industries Co., Ltd Daewon Kang up Co., Ltd 1st Military camp : Army Division
    2, 11, 15, 21, 22, 23, 27, 36
    Daechang Forging Co., Ltd. Haedong Machinery Co., Ltd Yusung Precision Industry Co., Ltd 2nd Prop: Army Division 50, 53
    Hanil Forging Industrial Co., Ltd Deadong Pyrone Yoosung Precision Industries Co., Ltd 2nd Military camp 86 maintenance,
    3rd Military camp 81 maintenance
    ZF Rempeder sash Co., Ltd Mirae Precision Industries Co., Ltd Daedong Precision Industrial Co., Ltd 5th Military camp : 51, 52, 53
    Corps Support Group, 72 maintenance
    ZF Friedichshafen AG Sambo Industries Co., Ltd 21st Industries Co., Ltd 1st Military camp : 1, 3, 6, 9, 17, 20, 25, 28
    Korea solar oil Corporation USM Korea Corporation Taekwang Industrial Co., Ltd Army Division 71, Battalion
    Seil Industrial Corporation Sambo Precision Industries Co., Ltd Donggwang Precision Industrial Co., Ltd Flood Control Agency : Army Division 56, 60
    Dong-A Hwa Sung Co., Ltd Jingwang Precision Machinery Co., Ltd Jinmyung Industrial Co., Ltd Castop Corporation
    Dongyang Special Machinery&Industry H-Lok Corporation KSP Corp PNC Tech Corporation
    Sechang Industrial Co., Ltd Serim GMT Alcatel Vacuum, Korea Bethel Machinery Co., Ltd
    EM Korea Corporation Bosch Rexroth Korea Seojin Chem. Corp 3R E&C Co., Ltd
    Kano Tech. Co.,Ltd Autoen Corporation Turbo link Co., Ltd Jinsung Precision Industrial Co., Ltd
    Nara Corporation Deasin Precision Industries Co., Ltd Deukin Mechanical Industries Inc KOREA SS Co., Ltd
    Dongsin Industrial Co., Ltd Seungil Tech Co., Ltd Singeumha Corp Geumyong Machinery Co., Ltd
    Samsim Machinery Co., Ltd Mapal HTT DongYang Moolsan Co., Ltd Geukdong Machinery Co., Ltd
    Daekyung Precision Corporation Gais Ringer Corporation Daesin Industrial Co., Ltd Seojin Precision Industrial Co., Ltd
    Hwajin Techro Co., Ltd Deokwoo Tech Corporation Poongsung Precision Industrial Co., Ltd Taelim Industrial Co., Ltd
    Korea Specialty Chemical Co., Ltd Nabu Tesco marine tech Corporation Namgwang Industrial Co., Ltd Woosin Industrial Co., Ltd
    Seoul Industry Corporation Asia Tech Corp Yewha Tech Corp Korea Absystem Co., Ltd
    Gyeongchang Industrial Co., Ltd Daehwang Precision Industries Co., Ltd Sewha Machinery Co., Ltd ILDO ENG Corporation
    Bowon Tech Co., Ltd Deoksu Industrial Co., Ltd Federal-Mocul Sejong Daehan Precision Industrial Co., Ltd
    KK Tech Corporation Wartsila Korea Kaswin Dongwoocheok Industrial Co., Ltd
    ENTOB/Serveone/iMarketKorea GA Tech Corp Samdo Industrial Co., Ltd ALCOM Corp.
    Clark material Handling Asia Corporation Ilkwang Dongnam Precision Industrial Co., Ltd Changwon Vaporizer Industrial Co., Ltd
    Mirae Industrial Co., Ltd Hanjin Industrial Co., Ltd DH Controls Co., Ltd Cowell Precision Industrial Co., Ltd
    Taepyeongyang Precision Machinery BY Co., Ltd Korea Delpi Automotive Systems Corp Dongmyung Precision Machinery Co., Ltd
    Se-A Industrial Co., Ltd Pax Tech Corp Geonhwa ENG Co., Ltd Hansung Machinery Co., Ltd
    Taesan Corporation WINTEC Co., Ltd Insun Motors Corp Taesung Industrial Co., Ltd
    Myeonghwa Industrial Co., Ltd DENSO KOREA ELECTRONICS CORP Doosung SB tech Corp Flucis Corp
    Seongwu Corporation Sunil MTech Corp. Hanul Corp World Tech/Hansung Precision Industrial Co., Ltd
    Toptraydex Corporation Insung Switch JWON Precisiton Co., Ltd Oneel Metal Co., ltd
    Yuhan-Kimberly Sunil Plastics Co., Ltd Hanz Motrol Co., Ltd KMC Co., Ltd
    Samchully Corporation KMC Corp TaeKwang Co., Ltd Suheung Corp / Changshin Inc.
    YoungchangENG Rinno Aluminum Co., Ltd Samyoung Derika Fresh Corp OSG Korea Corporation