| BESTKO DOOR CONTROL LIMITED | Private company limited by shares | Dissolved |
| CROWN (INTERNATIONAL) DOOR CONTROL GROUP CO., LIMITED | Private company limited by shares | Live |
| SWISS CROWN DOOR CONTROL TECHNOLOGY INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| German Crown International Door Control Co., Limited | Private company limited by shares | Live |
| CUMU (INTERNATIONAL) DOOR CONTROL GROUP CO., LIMITED | Private company limited by shares | Live |
| SOXUS (ITALY) DOOR CONTROL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Germany Craig Door Control Technology Co., Limited | Private company limited by shares | Dissolved |
| Taiwan Crown Door Control Hardware Co., Limited | Private company limited by shares | Live |
| GERMANY CHAOSHIDAI DOOR CONTROL GROUP LIMITED | Private company limited by shares | Dissolved |
| Hongkong crown door control technology Co., Limited | Private company limited by shares | Live |
| HONGKONG HUANG GUAN HARDWARE DOOR CONTROL CO., LIMITED | Private company limited by shares | Live |
| HONGKONG JINHUIYU DOOR CONTROL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GERMANY OUMANDE DOOR CONTROL (INT'L) GROUP LIMITED | Private company limited by shares | Live |
| ITALY MINGSHINI (INT'L) DOOR CONTROL HARDWARE LIMITED | Private company limited by shares | Dissolved |
| TAIWAN CROWN DOOR CONTROL METAL LIMITED | Private company limited by shares | Dissolved |
| TAIWAN CROWN DOOR CONTROL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BOLE DOOR CONTROL TECHNOLOGY (HK) LIMITED | | Live |
| ITALY AMG DOOR CONTROL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ITALY AMG DOOR CONTROL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| XING TAI CONTROL DOOR LIMITED | Private company limited by shares | Live |
| YIXUN DOOR CONTROL CO. LIMITED | Private company limited by shares | Live |
| DOUBLE PLUS PEST CONTROL SERVICES LIMITED | Private company limited by shares | Live |
| DOUBLE CONTROL TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| DOUBLE.W. CIRCUIT CONTROL LIMITED | Private company limited by shares | Live |
| DYNAX ADVANCED CONTROL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Eagle Control HongKong Limited | Private company limited by shares | Live |
| Ease & Control Neteork Technology Limited | | Live |
| East Control Limited | Private company limited by shares | Live |
| FAR EAST PEST CONTROL SERVICE LIMITED | Private company limited by shares | Dissolved |
| PRO.COM FAR EAST CONTROL VALVES LIMITED | Private company limited by shares | Dissolved |
| SOUTH EAST ASIA QUALITY CONTROL LIMITED | Private company limited by shares | Live |
| ECLAT CONTROL LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN EASY CONTROL ELEC. CO., LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI RENMIN ELECTRIC CONTROL ELECTROMECHANICAL (HK) LIMITED | | Live |
| SHANGHAI ERNMIN ELECTRIC CONTROL TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| GARLEE ELECTRICAL CONTROL COMPANY LIMITED | Private company limited by shares | Live |
| ELECTRICAL & MACHINERY TEMPERATURE CONTROL COMPANY LIMITED | Private company limited by shares | Live |
| HITEPS ELECTRONIC CONTROL SYSTEMS LIMITED | Private company limited by shares | Live |
| CONTROL ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| GENERAL ELECTRONICS LIGHTING CONTROL LIMITED | Private company limited by shares | Live |
| EMISSION CONTROL LIMITED | Private company limited by shares | Live |
| Endress Hauser Control Limited | Private company limited by shares | Dissolved |
| EVM ENERGY CONTROL (ASIA) LIMITED | Private company limited by shares | Live |
| ENERGY SAVING & CONTROL LIMITED | Private company limited by shares | Dissolved |
| Smart Energy Control Company Limited | | Live |
| ENERGY CONTROL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ENERGY CONTROL SYSTEMS ASIA LIMITED | Private company limited by shares | Live |
| SMART CONTROL ENERGY (USA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| JAPAN ZHENGMA NUMERICAL CONTROL ENGINE BED INT'L GROUP ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| WAH TAT CONTROL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| AIR CONTROL ENGINEERING LIMITED | Private company limited by shares | Live |
| ASPRIT CONTROL ENGINEERING LIMITED | Private company limited by shares | Live |
| AUTOMATE CONTROL ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN CONTROL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Creage control engineering co., Limited | Private company limited by shares | Live |
| Creative Control Engineering Company Limited | Private company limited by shares | Live |
| HK DONESHINE CONTROL ENGINEERING LIMITED | Private company limited by shares | Live |
| FRANCIS CONTROL & AUTOMATION ENGINEERING LIMITED | Private company limited by shares | Live Commenced dormancy on 29-Jun-2010 |
| HIVISION CONTROL ENGINEERING LIMITED | Private company limited by shares | Live |
| LAND CONTROL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| CONTROL PLUS ENGINEERING LIMITED | Private company limited by shares | Live |
| M & M CONTROL & AUTOMATION SYSTEM ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Sunrise Temperature Control Engineering Company Limited | Private company limited by shares | Live |
| TIME CONTROL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Universalway Control Engineering Hong Kong Limited | | Live |
| WELL CONTROL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENGLAND JIERUI LIQUOR INDUSTRY HOLDING CONTROL LIMITED | Private company limited by shares | Dissolved |
| CONTROL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Pest Control Environment Equipment Limited | | Live |
| D I AND ENVIRONMENTAL CONTROL COMPANY LIMITED | Private company limited by shares | Live |
| ALTAQUA ENVIRONMENTAL CONTROL TECHNOLOGY CO., LIMITED | | Live |
| ENVIRONMENTAL ENERGY PEST CONTROL COMPANY LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL CONTROL CONSULTANT & ENGINEERING LIMITED | Private company limited by shares | Live |
| KASEMAN ENVIRONMENTAL CONTROL EQUIPMENT LIMITED | Private company limited by shares | Live |
| Great Cypress Environmental Control Company Limited | Private company limited by shares | Live |
| Green Environmental Control Company Limited | Private company limited by shares | Live |
| WING HONG ENVIRONMENTAL CONTROL LIMITED | | Live |
| MINGWILL ENVIRONMENTAL & WASTE CONTROL LIMITED | Private company limited by shares | Live |
| PROTECH ENVIRONMENTAL CONTROL COMPANY LIMITED | Private company limited by shares | Dissolved |
| S & S PEST CONTROL AND ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| Environmental Control Service Company Limited | Private company limited by shares | Live |
| HK ENVIRONMENTAL POLLUTION CONTROL SERVICES LIMITED | Private company limited by shares | Dissolved |
| DRILLING ENVIRONMENTAL SOLIDS CONTROL LIMITED | Private company limited by shares | Live |
| Supreme Environmental Control International Company Limited | Private company limited by shares | Live |
| ENVIRONMENTAL CONTROL SYSTEMS, LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL CONTROL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Greenstar Environmental Control Technology Limited | Private company limited by shares | Live |
| ENVIRONS CONTROL MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| Envirotech Pest Control Limited | Private company limited by shares | Dissolved |
| ALLWEILER FLOW CONTROL EQUIPMENT LIMITED | Private company limited by shares | Live |
| ANDERSEN CONTROL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| BEARY FLUID CONTROL AND EQUIPMENT LIMITED | | Live |
| HIGHWAY AUTOMATIC CONTROL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| DETEK FLOW CONTROL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| HK ZHONGKE FLUID CONTROL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| HUAXU CONTROL EQUIPMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| FLUMATIC LIQUID CONTROL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| Sunny Conservation Control Equipment Int'l Limited | Private company limited by shares | Live |
| E&A ELECTRIC CONTROL EQUIPMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| EXPAND CONTROL EQUIPMENT LIMITED | Private company limited by shares | Dissolved |