| YM CARBON TRADING CO., LIMITED | | Live |
| EUROPEAN CARBON EMISSIONS TRADING CO., LIMITED | Private company limited by shares | Live |
| GREEN CARBON TRADING LIMITED | Private company limited by shares | Live |
| B & R GREEN LOW CARBON TRADING CO., LIMITED | | Live |
| Metaverse Carbon Trading (HK) Limited | | Live |
| JIANHONG CARBON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| TRANSOCEAN CARBON & MINERALS LIMITED | Private company limited by shares | Live |
| UNITED CARBON ASSETS LIMITED | Private company limited by shares | Live |
| Universal Carbon Reserve Holding Group Limited | | Live |
| Universal Carbon Finance Technology Limited | | Live |
| Carbon Universe Limited | | Live |
| CHINA CARBON VALLEY COMPANY LIMITED | Private company limited by shares | Live |
| CARBON VALLEY (CHINA) LIMITED | Private company limited by shares | Live |
| LOW CARBON VALLEY GROUP (CHINA) LIMITED | Private company limited by shares | Live |
| Carbon Valley Metallurgical Materials Co., Limited | | Live |
| Carbon Venture Co. Limited | | Live |
| Vision Carbon Limited | | Live |
| Carbon Wallet Company Limited | Private company limited by shares | Live |
| WANLONG CARBON LIMITED | Private company limited by shares | Dissolved |
| WHITE CARBON INC LIMITED | Private company limited by shares | Live |
| XINGHE JINLUN CARBON COMPANY LIMITED | Private company limited by shares | Live |
| SHANXI XINHUA ACTIVATED CARBON CO., LIMITED | Private company limited by shares | Dissolved |
| XINHUIDA CARBON PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| ZERO CARBON LIMITED | Private company limited by shares | Live |
| HK Zero Carbon Asset Limited | | Live |
| Carbon Zero Capital Limited | | Live |
| China Zero Carbon Group Limited | | Live |
| Zero Carbon Capital Co., Limited | Private company limited by shares | Live |
| Carbon Zero Renewable Energy Limited | | Live |
| Zero Carbon Investments Limited | | Live |
| Carbon Zero Technologies (Hong Kong) Limited | | Live |
| Carbon Zero Green Energy Management Limited | | Live |
| Zero Carbon Openpower Holding Limited | | Live |
| Carbon Zero Pioneer HK Limited | | Live |
| Zero Carbon New Energy Tech Co., Limited | | Live |
| Zero Carbon Technology Limited | Private company limited by shares | Live |
| CARBON ZERO ENERGY (HK) TECHNOLOGY LIMITED | | Live |
| Zero Carbon International Environmental Technology Limited | Private company limited by shares | Live |
| CARBON ZERO WEAR LIMITED | Private company limited by shares | Live |
| ZEROCARBON Carbon Free Lifestyle Limited | Private company limited by shares | Live |
| ZHONGJING CARBON CO., LIMITED | Private company limited by shares | Dissolved |
| CARBON10B X LIMITED | Private company limited by shares | Live |
| Carbon2020 Limited | Private company limited by shares | Live |
| CARBONAL CO., LIMITED | Private company limited by shares | Live |
| CARBONARA COMPANY LIMITED | Private company limited by shares | Dissolved |
| CARBONAS LIMITED | Private company limited by shares | Dissolved |
| Carbonation Limited -The- | Private company limited by shares | Live |
| GREATER GLOBAL CARBONATION LIMITED | Private company limited by shares | Live |
| CarbonBikeKits Sports Limited | Private company limited by shares | Live |
| CARBONBLOCK CO. LIMITED | | Live |
| CarbonBlue Innovations Limited | Private company limited by shares | Live |
| CARBONCODE LIMITED | Private company limited by shares | Live |
| CARBONDALE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SDA CARBONERALS CO., LIMITED | | Live |
| General Carbones Limited | Private company limited by shares | Live |
| Topwell Carbonfiber Composite Technology Co., Limited | Private company limited by shares | Live |
| CARBONFLO (H.K.) LIMITED | Private company limited by shares | Dissolved |
| CARBONFLO PACIFIC LIMITED | Private company limited by shares | Dissolved |
| HENGQIAO CARBON(HONGKONG)CO., LIMITED | Private company limited by shares | Live |
| Carbonician Co., Limited | Private company limited by shares | Live |
| CARBONKING CO., LIMITED | Private company limited by shares | Live |
| CAS Carbonless Solution Limited | Private company limited by shares | Dissolved |
| CARBONMASTERS LIMITED | Private company limited by shares | Dissolved |
| BEYOND METALS AND CARBONS COMPANY LIMITED | Private company limited by shares | Live |
| Caravel Carbons Limited | Private company limited by shares | Live |
| HS CARBONS CO., LIMITED | Private company limited by shares | Live |
| Ningxia Hengtai Carbons Co., Limited | Private company limited by shares | Live |
| Dragon Carbons Limited | Private company limited by shares | Live |
| Fly Sky Carbons Group Co., Limited | Private company limited by shares | Live |
| FLY CARBONS GROUP CO., LIMITED | Private company limited by shares | Live |
| NingXia Jiaxin Carbons Co., Limited | Private company limited by shares | Live |
| SUNM CARBONS PVT LIMITED | Private company limited by shares | Live |
| Carbonsive Holding Limited | | Live |
| Carbonsports Co., Limited | Private company limited by shares | Live |
| CARBONSS TUNING CO., LIMITED | Private company limited by shares | Live |
| CARBONTEC MANUFACTURING CO., LIMITED | Private company limited by shares | Live |
| CARBONWATER ESTATES LIMITED | Private company limited by shares | Dissolved |
| CarbonX Global Limited | | Live |
| CARBONZERO CO., LIMITED | | Live |
| CarbonZero Technology Limited | | Live |
| HONG KONG CARBOO INT'L FOOD LIMITED | Private company limited by shares | Dissolved |
| Carboot Technology (HK) Co., Limited | Private company limited by shares | Live |
| FRENCH LIS CARBORN LIMITED | Private company limited by shares | Dissolved |
| CARBOSS INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| CarboSun Limited | Private company limited by shares | Live |
| HK Carbotang Chemicals Co., Limited | Private company limited by shares | Live |
| CarboTrade Limited | Private company limited by shares | Live |
| CARBOW INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CARBOW JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| CARBOW SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CARBOY COMPANY LIMITED | Private company limited by shares | Live |
| CARBOYS LIMITED | Private company limited by shares | Live |
| HOI KONG CAR-BREAKING COMPONENTS CO., LIMITED | Private company limited by shares | Dissolved |
| CARBROOK SHIPPING LIMITED | Private company limited by shares | Dissolved |
| CARBUNCLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CARBURES ASIA LIMITED | Private company limited by shares | Live |
| Carby Limited | Private company limited by shares | Dissolved |
| Car.Car 88 Company Limited | Private company limited by shares | Dissolved |
| CARCARE (2001) LIMITED | Private company limited by shares | Dissolved |
| CARCASE COMPANY LIMITED | Private company limited by shares | Dissolved |