| O.U.M. Limited | Private company limited by shares | Live |
| OUMA INDUSTRIAL LIMITED | Private company limited by shares | Live |
| OUMA INDUSTRIAL & TRADING LIMITED | Private company limited by shares | Dissolved |
| HK OUMA INDUSTRY TRADE LIMITED | Private company limited by shares | Dissolved |
| OuMai Furniture Limited | Private company limited by shares | Live |
| OUMAISI ELECTRICAL GROUP (HONGKONG) INDUSTRY LIMITED | Private company limited by shares | Live |
| OUMAISI INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| TAIWAN OUMAISI CROP PROTECTION LIMITED | Private company limited by shares | Live |
| OUMAN ARCHITECTURAL LANDSCAPE DESIGN CONSULTANTS (AUSTRALIA) LIMITED | Private company limited by shares | Dissolved |
| OUMAN (HK) COSMETICS LIMITED | Private company limited by shares | Live |
| HK OUMAN INTERNATIONAL COSMETICS LIMITED | Private company limited by shares | Live |
| OUMAN ELECTRON BUSINESS SUPPLY CHAIN LIMITED | Private company limited by shares | Live |
| SWEDEN OUMAN INT'L HOLDING GROUP CHINA LIMITED | Private company limited by shares | Live |
| FRENCH OUMAN INTERNATIONAL COSMETICS (HK) LIMITED | Private company limited by shares | Live |
| Hong Kong Ouman International Trading Co., Limited | | Live |
| Hong Kong Ouman Share Holding Co., Limited | Private company limited by shares | Live |
| HONG KONG OUMAN WOOD GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| OUMAN INTERNATIONAL INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Ouman Technology Industry Limited | Private company limited by shares | Live |
| Ouman International Limited | Private company limited by shares | Live |
| ITALY OUMAN INT'L GROUP LIMITED | Private company limited by shares | Live |
| OUMAN HONGKONG MESSE LIMITED | | Live |
| HK BEN . OUMAN INT'L (SHENZHEN) FINERY SHARE LIMITED | Private company limited by shares | Dissolved |
| GUANGDONG FOSHAN SHUNYAO OUMAN CERAMICS LIMITED | Private company limited by shares | Live |
| HK OUMANNA COSMETICS LIMITED | Private company limited by shares | Live |
| French Oumanni Biological Technology Limited | Private company limited by shares | Live |
| ITALY OUMANNI GROUP LIMITED | Private company limited by shares | Live |
| FRANCE OUMANNI INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HK OUMANTING INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| H.K OUMANXIN FAMILY SPINS INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| OUMAO CHEMICAL (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Oumao International Co., Limited | Private company limited by shares | Live |
| HONG KONG OUMAO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG OUMAO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| OUMATE INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| HK OUMEGA LIMITED | Private company limited by shares | Live |
| NEW BALANCE OUMEI CO., LIMITED | Private company limited by shares | Live |
| FOSHAN OUMEI TIANCI CERAMICS CO., LIMITED | Private company limited by shares | Live |
| Shenzhen Oumei Gou Ecommerce Co., Limited | Private company limited by shares | Live |
| OUMEI FURNITURE CO., LIMITED | Private company limited by shares | Dissolved |
| HK OUMEI FEIBOER (CHINA) LIMITED | Private company limited by shares | Live |
| OUMEI BAOMA GROUP LIMITED | Private company limited by shares | Live |
| OUMEI HONG KONG COMPANY LIMITED | Private company limited by shares | Live |
| USA OUMEI TAYLOR LIMITED | Private company limited by shares | Live |
| OUMEI NO. 2 TRADING LIMITED | Private company limited by shares | Live |
| OUMEIDE LIMITED | Private company limited by shares | Live |
| OUMEIDE JEWELRY LIMITED | Private company limited by shares | Live |
| HONGKONG HAIMA OUMEIFENG FURNITURE GROUP LIMITED | Private company limited by shares | Dissolved |
| Oumeiga International Limited | Private company limited by shares | Live |
| GERMANY OUMEIJIE TUBE INDUSTRY GROUP LIMITED | Private company limited by shares | Live |
| SHANXI OUMEIJINYE CHEMICALS CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG OUMEIKE GROUP LIMITED | Private company limited by shares | Dissolved |
| BEIJING OUMEILONG METER LIMITED | Private company limited by shares | Dissolved |
| GUANGDONG OUMEILONG METER LIMITED | Private company limited by shares | Live |
| H.K. ZHIKAI OUMEILONG FURNITURE DECORATION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG OUMEILONG ELECTRICAL LIMITED | Private company limited by shares | Dissolved |
| HK OUMEILONG INT'L TRADE LIMITED | Private company limited by shares | Live |
| SHANGHAI OUMEILONG METER LIMITED | Private company limited by shares | Live |
| OUMEIRUI INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| OUMEISI LIMITED | Private company limited by shares | Live |
| HK OUMEITE MECHANICAL COMPANY LIMITED | Private company limited by shares | Live |
| SHANGHAI OUMEITE GROUP LIMITED | Private company limited by shares | Dissolved |
| HK OUMEITONG TRADING LIMITED | | Live |
| OUMEIYA INVESTMENT HOLDING GROUP LIMITED | Private company limited by shares | Dissolved |
| HK OUMEIYUAN LIMITED | Private company limited by shares | Live |
| OUMENG (CHINA) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OUMENG TRADE CO., LIMITED | Private company limited by shares | Live |
| HK OUMENG LIGHT FIXTURE & ELECTRICAL Co., LIMITED | Private company limited by shares | Live |
| FRANCE OUMENG FINERY GROUP LIMITED | Private company limited by shares | Dissolved |
| OUMENG INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| OUMENGNI ELECTRIC GROUP (H.K) LIMITED | Private company limited by shares | Dissolved |
| HK Oumer Limited | Private company limited by shares | Live |
| OUMI LIMITED | Private company limited by shares | Live |
| OUMI FURNITURE LIMITED | Private company limited by shares | Live |
| Oumi Jewellery Limited | | Live |
| Oumi Network Limited | Private company limited by shares | Live |
| OUMI TRADE LIMITED | Private company limited by shares | Live |
| OUMIER LIMITED | | Live |
| FRANCE OUMIJI FASHION LIMITED | Private company limited by shares | Live |
| HONGKONG OUMIKE (INTERNATIONAL) COSMETICS CO., LIMITED | Private company limited by shares | Live |
| GERMANY OUMILAN GROUP (HK) LIMITED | Private company limited by shares | Live |
| HK OUMILAN INTERNATIONAL PLANNING HOLDINGS CO., LIMITED | Private company limited by shares | Dissolved |
| OUMILONG PRECISION MACHINERY LIMITED | Private company limited by shares | Live |
| OUMIQIE (CHINA) WATCHMAKING LIMITED | Private company limited by shares | Dissolved |
| HK OUMIXIANG FOOD LIMITED | Private company limited by shares | Live |
| Oumonda Limited | | Live |
| HK OUMS TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG OUMS BIOTEC DEVELOPMENT CO., LIMITED | Private company limited by shares | Dissolved |
| OUMUKA (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OUMULONG PRESIDE GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| OUMURS (HONGKONG) ACCESSORY LIMITED | Private company limited by shares | Live |
| OUMURS ACCESSORY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| OUMUYUN INTELLIGENCE (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SHENZHEN OUMX TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Oumy (Hong Kong) Furniture Company Limited | Private company limited by shares | Live |
| GUANGZHOU OUMY OFFICE FURNITURE CO., LIMITED | Private company limited by shares | Live |