관계회사| 기업명 | 대표자명 |
|---|
| Baoding Hyosung Tianwei Transformer Co., Ltd. | |
| Beijing Hyosung Computer Technologies.Co., Ltd. | |
| Central Trade Investment Ltd. | |
| D&S Technology Co.Ltd. | |
| DONGGUAN SHINWHA INTERTEK CORP | |
| GST Automotive Safety Components International LLC S.A..de C.V. | |
| GST Automotive Safety Components International LLC. | |
| GST Automotive Safety Czech s.r.o. | |
| GST Automotive Safety Poland Sp.z.oo. | |
| GST Automotive Safety RO S.R.L. | |
| GST Automotive Safety South Africa(Proprietary) Limited. | |
| GST Automotive Safety UK Limited. | |
| GST Automotive Safety(Changshu) Co. Ltd. | |
| GST China Investment Limited. | |
| GST Global Gmbh. | |
| GST Safety Textiles RO S.R.L. | |
| Galaxia America INC. | |
| Galaxia Japan Co.,Ltd. | |
| Galaxia Media, Inc. | |
| Global Safety Textiles GmbH. | |
| Global Safety Textiles LLC. | |
| Global Safety Textiles U.S. Holdings, Inc. | |
| HICO America Sales & Tech. | |
| Huizhou Galaxia Device Electronics., Co.Ltd. | |
| Hyosung (H.K) LIMITED. | |
| Hyosung (Taiwan) Coporation. | |
| Hyosung Brasil Industria E Comercio De Fibras Ltda. | |
| Hyosung Brasil Industrial & Commercial LTDA | |
| Hyosung Chemical Fiber (Jiaxing) Co., Ltd. | |
| Hyosung Chemicals (Jiaxing) Co., Ltd. | |
| Hyosung Composites (Guangdong) Co., Ltd. | |
| Hyosung Corporation India Private Limited. | |
| Hyosung Europe SRL. | |
| Hyosung Holdings USA,Inc. | |
| Hyosung International Trade(Jiaxing) Co., Ltd. | |
| Hyosung International(HK) Ltd. | |
| Hyosung Istanbul TEKSTIL LTD.STI. | |
| Hyosung Japan Co., Ltd. | |
| Hyosung Luxembourg S.A | |
| Hyosung Power Holdings, Ltd. | |
| Hyosung RUS. | |
| Hyosung Resource (Australia) PTY Ltd. | |
| Hyosung SRL | |
| Hyosung Singapore PTE Ltd. | |
| Hyosung Spandex (GuangDong) Co., Ltd. | |
| Hyosung Spandex (Jiaxing) Co., Ltd. | |
| Hyosung Spandex (Zhuhai) Co., Ltd. | |
| Hyosung Steel Cord (Qingdao) Co., Ltd. | |
| Hyosung Sumiden Steel Cord (Nanjing) Co., Ltd. | |
| Hyosung USA Inc. | |
| Hyosung Vietnam Co., Ltd. | |
| Hyosung Wire Luxembourg S.A | |
| IB America, Inc. | |
| IB China., Ltd. | |
| Luck Faith Investment Ltd. | |
| Nantong Hyosung Transformer Co., Ltd. | |
| Nantong Transformer Co., Ltd. | |
| Nantong Yaubong Transformer Co., Ltd. | |
| Nautilus Hyosung America, Inc. | |
| Opco Gmbh. | |
| PT. HYOSUNG JAKARTA | |
| Powertech Corporation. | |
| Qingdao Galaxia Device Electronics., Co.Ltd. | |
| Qingdao Sung Ha Electronics., Co.Ltd | |
| SHINHWA INTERTEK SLOVAKIA s.r.o | |
| SHINWHA INTERTEK CORP | |
| SHINWHA INTERTEK(SUZHOU) CO.,LTD | |
| Tianjin Galaxia Device Electronics., Co.Ltd. | |
| Weihai Galaxia Device Electronics., Co.Ltd | |
| Xepix Corp. | |
| Zhangjiagang Xiaosha Coil Service Co., Ltd. | |
| ㈜갤럭시아디스플레이 | |
| ㈜신동진 | |
| ㈜아이비미디어넷 | |
| ㈜아이비월드와이드 (구 ㈜아이비스포츠) | |
| ㈜에브리쇼 | |
| ㈜에이티엠플러스(舊㈜키스뱅크) | |
| ㈜엔에치테크 | |
| ㈜인포허브 | |
| ㈜태억건설 | |
| ㈜플로섬 | |
| ㈜효성 | |
| 갤럭시아디바이스㈜ | |
| 갤럭시아일렉트로닉스㈜ | |
| 갤럭시아코퍼레이션㈜ | |
| 갤럭시아포토닉스㈜ | |
| 거목농산㈜ | |
| 공덕개발㈜ | |
| 공덕경우개발㈜ | |
| 노틸러스효성㈜ | |
| 더클래스효성㈜ | |
| 더프리미엄효성㈜(舊㈜남양모터스) | |
| 동륭실업㈜ | |
| 두미종합개발㈜ | |
| 신화인터텍㈜ | |
| 아시아엘엔지허브㈜ | |
| 아이티엑스마케팅㈜ | |
| 엔에이치씨엠에스㈜ | |
| 진흥기업 | |
| 태안솔라팜㈜ | |
| 트리니티에셋매니지먼트㈜ | |
| 평창풍력발전㈜ | |
| 행복두드리미(주) | |
| 홍진데이타서비스㈜ | |
| 효성ITX㈜ | |
| 효성굿스프링스㈜ | |
| 효성에바라엔지니어링㈜ | |
| 효성에프엠에스㈜ | |
| 효성윈드파워홀딩스㈜ | |
| 효성인포메이션시스템㈜ | |
| 효성캐피탈㈜ | |
| 효성토요타㈜ | |
| 효성투자개발㈜ | |
| 효성트랜스월드㈜ | |
