v3.25.1
Organization and business (Details)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Shanghai Euro Tech Limited    
Percentage of equity ownership 0.00% 100.00%
Place of incorporation The PRC  
Principal activities Manufacturing of analytical and testing equipment  
Euro Tech Trading (Shanghai) Limited    
Percentage of equity ownership 100.00% 100.00%
Place of incorporation The PRC  
Principal activities Inactive  
Euro Tech (Far East) Limited    
Percentage of equity ownership 100.00% 100.00%
Place of incorporation Hong Kong  
Principal activities Marketing and trading of water and waste water related process control, analytical and testing instruments, disinfection equipment, supplies and related automation systems  
Pact Asia Pacific Limited    
Percentage of equity ownership 58.00% 58.00%
Place of incorporation The British Virgin Islands  
Principal activities Sale of environmental protection equipment, undertaking environment protection projects and providing relevant technology advice, training and services  
Yixing Pact Environmental Technology Co., Ltd    
Percentage of equity ownership 58.00% 58.00%
Place of incorporation The PRC  
Principal activities Design, manufacturing and operation of water and wastewater treatment and water desalination machinery and equipment  
PACT Environmental Technology Pte. Ltd    
Percentage of equity ownership 58.00% 0.00%
Place of incorporation Singapore  
Principal activities Marketing and provision of after sales services of ballast water treatment systems and customized industrial wastewater solutions, equipment fabrication  
Zhejiang Tianlan Environmental Protection Technology Co. Ltd ("Blue Sky")    
Percentage of equity ownership 19.40% 19.40%
Place of incorporation The PRC  
Principal activities Design, general contract, equipment manufacturing, installation, testing and operation management of the treatment of waste gases emitted  
ZHEJIANG TIANLAN | Hangzhou Zhongyi Ecological And Environmental Consulting Company Limited Member    
Percentage of equity ownership 40.10% 40.10%
Place of incorporation PRC  
Principal activities Consultation services of environmental protection projects  
ZHEJIANG TIANLAN | Xuancheng Lanjing Environmental Protection Equipment Co., Ltd    
Percentage of equity ownership 19.51% 0.00%
Place of incorporation PRC  
Principal activities Manufacturing and installation services of environmental protection equipment  
Zhejiang Tianlan Environmental Protection Engineering Company Limited | ZHEJIANG TIANLAN    
Percentage of equity ownership 100.00% 100.00%
Place of incorporation PRC  
Principal activities Design, general contract, installation and operating management of environmental protection projects  
Hangzhou Tianlan Environmental Protection Equipment Company Limited | ZHEJIANG TIANLAN    
Percentage of equity ownership 51.00% 51.00%
Place of incorporation PRC  
Principal activities Manufacturing and installation services of environmental protection equipment  
Hangzhou Tianlan Pure Environmental Protection Technology Company Limited | ZHEJIANG TIANLAN    
Percentage of equity ownership 38.25% 38.25%
Place of incorporation PRC  
Principal activities Manufacturing of environmental protection equipment  
Hangzhou Tiancan Environmental Technology Company Limited | ZHEJIANG TIANLAN    
Percentage of equity ownership 80.00% 80.00%
Place of incorporation PRC  
Principal activities Manufacturing of environmental protection equipment