ESG Report 2024

95 Environmental, Social and Governance Report 2024 The United Laboratories International Holdings Limited Removal of Odours from Sewage Treatment Processes For the exhaust gas with peculiar smell generated in the sewage treatment process, the factories adopt a measure to collect the odour source in a sealed way. The collected exhaust gas is deodorised through the process of “multi-level alkali spraying + ozonation” t o r e d u c e t h e i mp a c t s o n t h e surrounding environment. Treatment of Exhaust Gases from Different Workshop Processes In regard to the technical processes of different factories and the exhaust gas released, Inner Mongolia Company deal with them by adopting treatment measures such as "Triple cooling + spraying + active carbon and resin regeneration absorbing", alkali spraying and catalytic oxidation, so as to greatly reduce the emission of pollutants. Upgrading the Exhaust Gas Treatment System For the organic waste gases generated during the production process, the Group has constructed a new activated carbon adsorption and regeneration waste gas treatment system with a processing capacity of 5,000 cubic meters per hour. The system adopts the condensation recovery + water spraying + activated carbon adsorption and regeneration treatment process, ensuring stable compliance with emission standards for waste gases. Besides, it can recover some organic solvents, reduce the consumption of activated carbon, minimise the production of waste activated carbon, and achieve energy efficiency. " " To achieve the environmental targets, the Group has also invested in the renovation of the existing waste gas facilities. Besides, we continue to use the optimised acetone tail gas recovery system implemented last year. Acetone is a commonly used organic solvent in pharmaceutical processes, widely applied in dissolving, extracting, and synthesising steps. If directly discharged into the atmosphere without treatment, it can have negative impacts on the environment and health. This recovery system effectively captures and recycles acetone from the exhaust gas, thereby improving the recovery rate and purity of acetone, achieving reuse and reducing environmental pollution. It is estimated that the system can recover 130 tonnes of acetone monthly, significantly enhancing the Company's economic benefits. Waste Disposal Strategy Achieving waste reduction at the source, reducing waste generation Increasing the rate of waste disposal and recycling rate Produced ≤ 8.5 tonnes hazardous waste per tonne of products Key Results of Waste Disposal for This Year The amount of hazardous waste and non-hazardous waste has slightly increased, mainly due to a rise in production compared to last year Waste Disposal Targets for This Year The Group strictly monitors and controls on the wastes generated during the production process. Apart from complying with the national laws and regulations, Inner Mongolia Company also formulates management measures and emergency plans for handling different types of wastes. The wastes generated by Inner Mongolia Company could be classified into two types, namely non-hazardous wastes and hazardous wastes. The non-hazardous wastes include waste diatomite, sludge and glass generated during production, as well as the general garbage generated in daily operation. Inner Mongolia Company considers recyclable wastes as resources, and collects and delivers them to the qualified units for reuse, so as to effectively minimise the amount of wastes disposed. For example, waste diatomite could be used for producing fertiliser, sludge could be used for producing fuel and waste glass could be used for recycling. 10.5.3 Waste Treatment