Emission Management

Emission Management

The Company formulates and implements the Regulations on Supervision andManagement of Ecological Environmental Protection and Energy Conservation《生态环境保护与能源节约监督管理规定》Administrative Measures forEnvironmental Protection on Construction and installation Sites 《 施工安装现场环保管理办法》Administrative Measures for Environmental Protection onConstruction《建筑施工环保管理办法》Regulations on EnvironmentalManagement for Boiler Houses《锅炉房环保管理规定》AdministrativeMeasures for Recovery and Utilization of Waste Materials 《 废日物资回收利用管理办法》Requlations on Environmental Management of Metal Welding andGas Cutting Operations《金属焊接与气割作业环保管理规定》Administrative Measures for Environmental Management for Machinery andEquipment《机械设备环保管理办法》Regulations on EnvironmentalManagementofWarehouses《库房环保管理规定》RequlationsonManagement of Hazardous Wastes《危险废物管理规定》Requlations onEnvironmental Sanitation Management on Production Sites《生产现场定环境卫生管理规定》and other rules and requlations to form a standardizedworkina mode combined with measures for controlling emissions.

Exhaust gas management

The Company's exhaust emissions mainly come from the boiler gas combustionsmelting in the processing of steel structures, sheet processing, abrasive blastingpolishing and spraving and other processes The main pollutants are carbondioxide, nitrogen oxides, smoke (powder) and volatile organic compounds (VOCs)which are emissions from industrial enterprises The Company is a constructionenterprise of concern to the SASAC, with low emissions of exhaust gas.

In 2022, the Company set a goal that, with the continuous expansion of theenterprise scale, reducing carbon dioxide emissions per RMB ten-thousand ofoperating income by 3.89% on the basis of 2021 and the emissions per RMB tenthousand of nitrogen oxides, smoke (powder) and volatile organic compoundsdecreased year by year. During the period, the Company reduces emissions ofcarbon dioxide and nitrogen oxides by adjusting the structure of productioncapacity and renovating gas boilers with low nitrogen. In terms of controllingsmoke (powder), the Company adopts control measures in transportationstorage, construction, production, etc, and reduces smoke (powder) by coveringwatering.adding dust removal equipment.and shutting down operations.TheCompany increased the capital investment in pollution control and industriatransformation, and its industrial production bases completed the speciarenovation of the fully enclosedworkshops.In order to control VOCstheCompany installed activated carbon and filter cotton paint mist filtration systemson the production line, and rebuilt the workshops in accordance with the VOCstreatment standard. In 2022, all major waste gas pollutants of the Company weredischaraed up to the standard within the discharge scope of the permit.

Waste management

The Company attaches great importance to the comprehensive recyclingof waste. In 2022, the Company set a goal that, with the continuousexpansion of the enterprise scale, the emission per RMB ten-thousand ofnon-hazardous waste and hazardous waste decreased year by year, with a100% disposal rate of non-hazardous waste and hazardous waste. To meetthe above goal, in respect of non-hazardous waste, with optimizing theconstruction organization scheme as the main measure, the Companypromotes the standardization of the "Four Conservations and OneEnvironmental Protection" policy,increases investment in capital andenvironmental protection equipment, and strengthens the recycling otnon-hazardous waste. Thanks to these efforts, a recycling rate of 99.4%with a disposal rate of 100% is achieved. In strict accordance with theRequlationson Management of Hazardous Waste(《危险废物管理规定》the Company entrusts qualified agencies to conduct centralized recyclingand treatment of hazardous waste, such as waste oil generated byengineering equipment, and achieves a disposal rate of 100% forhazardous waste.

Wastewater management

The Company takes the management of construction wastewater seriouslyand sets up a three-stage sedimentation tank to treat the constructionwastewater. The Company keeps strengthening environmental protectionsupervision at the construction site, regularly troubleshoots the ecologicaland environmental pollution sources and risk points of wastewatergenerated during construction, updates the ledger of pollution sourcesand risk points on a monthly basis, and designates relevant departmentsand personnel to carry out full-process monitoring and normalizedsupervision.

Noise management

The Company requires that its own project site must be equipped withnoise monitoring equipment to monitor the noise generated by projects inreal time and the noise control shall conform to relevant nationalstandards.

Ecological environment management

The Company identifies and evaluates environmental factors of projectsunder construction and in the workplace establishes a system formonitoring environmental protection, strengthens the control over risksources of ecological environmental pollution and pollutant emissions inthe production process, and strengthens the process control over theecological environmental protection work of the proiect department, toguard against environmental risks.