| Carbon Technology New Materials Co., Limited | | Live |
| Mechel Carbon Hong Kong Limited | | Live |
| LOW CARBON METAL LIMITED | | Live |
| CARBON METAL LIMITED | | Live |
| Carbon Mining Technology Limited | Private company limited by shares | Live |
| MORKIN CARBON CO., LIMITED | | Live |
| NATURAL CARBON CO., LIMITED | Private company limited by shares | Dissolved |
| CARBON & NATURAL RESOURCES CORP. LIMITED | Private company limited by shares | Live |
| Carbon Negative Solution HK Limited | | Live |
| ASIA CARBON NEUTRAL LIMITED | Private company limited by shares | Live |
| CARBON NEUTRAL CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Carbon Neutral Group Limited | | Live |
| V CARBON NOPAN LIMITED | | Live |
| Nova Carbon Limited | | Live |
| EOS CARBON OFFSET LIMITED | Private company limited by shares | Dissolved |
| Pure Carbon Opportunities Limited | Private company limited by shares | Dissolved |
| ORGANIC CARBON LIMITED | Private company limited by shares | Live |
| UR Organic Carbon Holding Limited | Private company limited by shares | Live |
| ORIENTAL CARBON LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL CARBON CO., LIMITED | Private company limited by shares | Live |
| Origins Carbon Limited | Private company limited by shares | Live |
| PACIFIC CARBON LIMITED | Private company limited by shares | Dissolved |
| Carbon Pacific Limited | Private company limited by shares | Live |
| Asia Carbon Partnership Limited | Private company limited by shares | Live |
| PRECIOUS CARBON LIMITED | Private company limited by shares | Live |
| CARBON PRODUCTION LIMITED | Private company limited by shares | Live |
| HK Gang Bao Carbon Products Limited | Private company limited by shares | Dissolved |
| ASIAN LOW CARBON ECONOMY PROMOTION ASSOCIATION LIMITED | Private company limited by shares | Live |
| Low Carbon Property Limited | Private company limited by shares | Live |
| China Low Carbon Environmental Protection Limited | Private company limited by shares | Live |
| QingHe Carbon Co., Limited | | Live |
| NET CARBON REDUCTION LIMITED | Private company limited by shares | Dissolved |
| China Carbon Emissions Reduction Association Limited | Private company limited by shares | Dissolved |
| HK Green Carbon Application Research Limited | | Live |
| CHINA CARBON EMISSIONS RESERVES GROUP LIMITED | Private company limited by shares | Live |
| Carbon Resources HK Limited | Private company limited by shares | Live |
| Carbon Road Limited | | Live |
| ROYAL CARBON LIMITED | Private company limited by shares | Live |
| CARBON SALES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SCHUNK GENERAL CARBON LIMITED | Private company limited by shares | Live |
| Carbon Capture Scientific Limited | | Live |
| SHANDONG XINGFA CARBON CO., LIMITED | Private company limited by shares | Live |
| SHANDONG NICEST CARBON BLACK CO., LIMITED | Private company limited by shares | Live |
| NINGXIA SHENGXIANG CARBON LIMITED | Private company limited by shares | Live |
| SINDICATUM CARBON CAPITAL (ASIA) LIMITED | Private company limited by shares | Live |
| SINOURCES LOW CARBON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMMC CARBON CO., LIMITED | | Live |
| SOLUTION CARBON LIMITED | Private company limited by shares | Dissolved |
| CARBON SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| CARBON CREDIT SOLUTIONS LIMITED | Private company limited by shares | Live |
| FIRST CARBON SOLUTIONS LIMITED | Private company limited by shares | Live |
| CARBON FREE SOLUTIONS LIMITED | Private company limited by shares | Live |
| Carbon Solutions (HK) Limited | Private company limited by shares | Live |
| Carbon Marketing Solutions Limited | | Live |
| PACIFIC CARBON SOLUTIONS LIMITED | Private company limited by shares | Live |
| Dalian Spark Carbon Limited | Private company limited by shares | Live |
| SPREAD INNOVATION CARBON TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Carbon Standard Limited -The- | Private company limited by shares | Live |
| Carbon Star Group Limited | Private company limited by shares | Live |
| CARBON CAPTURE & STORAGE (CCS) LIMITED | | Live |
| Supreem Carbon Co., Limited | Private company limited by shares | Live |
| TAKAYO CARBON COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAYLOR MASON CARBON LIMITED | | Live |
| Carbon Team Limited | | Live |
| XDS CARBON TECH CO., LIMITED | Private company limited by shares | Dissolved |
| CARBON TECH CO., LIMITED | Private company limited by shares | Live |
| LOW CARBON TECHNOLOGIES RESEARCH CENTRE LIMITED | Private company limited by shares | Dissolved |
| FOCUS CARBON TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| GREEN CARBON TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Carbon Technologies Hong Kong Limited | Private company limited by shares | Live |
| HYDROGEN CARBON CLEANING TECHNOLOGIES (HK) LIMITED | Private company limited by shares | Live |
| Carbon Technology Limited | | Live |
| V CARBON TECHNOLOGY LIMITED | | Live |
| China Carbon Fibre Technology and Application Limited | Private company limited by shares | Live |
| STANDARD CARBON ASSETS TECHNOLOGY LIMITED | | Live |
| CARBON CAPTURE TECHNOLOGY, LIMITED | Private company limited by shares | Live |
| China Low Carbon Technology Co., Limited | Private company limited by shares | Live |
| Carbon Euro Technology Co., Limited | Private company limited by shares | Live |
| Carbon Technology (Group) Co., Limited | | Live |
| Cloud Carbon Data Technology (Holding) Limited | Private company limited by shares | Live |
| Easy Carbon Technology (Greater Bay Area) Limited | | Live |
| Green Carbon Technology Limited | Private company limited by shares | Live |
| Green Carbon Technology Group Limited | Private company limited by shares | Live |
| HK Ocean Low Carbon Technology Group Limited | Private company limited by shares | Live |
| CHINA LOW CARBON NEW MATERIAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Carbon Neutrality Technology Limited | | Live |
| PALM CARBON TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK SUPER CARBON NANO TECHNOLOGY LIMITED | | Live |
| CHINA CARBON VALLEY TECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| TOP-FIRE CARBON TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Carbon Trade Limited | | Live |
| Low Carbon Trading Limited | Private company limited by shares | Live |
| CARBON TRADING LIMITED | Private company limited by shares | Live |
| Carbon Trading HK Limited | Private company limited by shares | Live |
| VH Carbon Trading Company Limited | Private company limited by shares | Live |
| GAR Carbon Trading Limited | Private company limited by shares | Live |
| ACTIVATED CARBON TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| E. P. C. ACTIVATED CARBON TRADING (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| BITGREEN CARBON TRADING LIMITED | Private company limited by shares | Live |
| CARBON CENTURY TRADING LIMITED | Private company limited by shares | Live |