ESG Report 2025

10.4.2 Risk Identification and Accident Prevention The United Laboratories places the dual prevention mechanism of “risk classification control + hazard identification and management” at the core of its safety management approach, integrating risk identification, assessment and control into its day-to-day operations management in advance. In annual planning and on-site management, each unit, in accordance with the requirements of the dual prevention mechanism for hazardous chemicals and the Group’s relevant policies, identifies safety risk events across dimensions such as engineering controls, equipment maintenance, operational behaviour and emergency measures. Corresponding control measures are then translated into actionable inspection checkpoints, with responsible positions/personnel and inspection frequency clearly defined, so as to ensure full staff coverage, clear accountability and explicit inspection cycles, while integrating such measures with routine activities such as daily inspections. In terms of accident prevention, the Group implements planned and specialised hazard identification arrangements. Taking Inner Mongolia Company as an example, its annual safety inspections and hazard identification and management plan covers routine work such as safety facilities, electrical equipment, comprehensive workshop safety inspections and specialised inspections of risk sources. Based on operational characteristics, it also carries out specialised inspections relating to dust and toxic substance prevention, fire and explosion prevention, fire- fighting facilities, ladders and elevated platforms, hazardous chemicals, pressure vessels and pressure pipelines, and mechanical equipment. In this way, key risk points are distributed across periodic inspections throughout the year, improving the effectiveness of early risk identification and early intervention. The Group has also established a closed-loop rectification mechanism for hazards, emphasising that “hazards that can be rectified immediately must be rectified immediately”. For issues that cannot be fully addressed on the spot, preventive measures must be formulated before remediation, monitoring responsibilities and rectification deadlines must be assigned, and adequate resources and accountable personnel must be put in place, so as to prevent hazards from escalating into accidents. For high-risk operations and typical accident scenarios, the Group strengthens risk identification and control requirements for confined space operations, special operations and other high-risk activities. Through targeted training, it enhances employees’ understanding and execution of hazard factors, protection procedures, emergency response and permit-to-work management, thereby reducing the risks of non-compliant operations and operational errors at source. At the same time, the Group regards emergency drills as an important means of accident prevention and capability verification. Taking Inner Mongolia Company as an example, its annual emergency drill plan covers scenarios such as poisoning/asphyxiation in confined spaces, falls from height, electric shock, mechanical injuries, vehicle-related injuries, chemical leakage, fire-fighting and emergency evacuation, and is implemented by workshops/departments according to plan, thereby continuously improving on- site emergency response capabilities. To ensure the quality and traceability of drills, the Group requires pre-drill training on emergency plans and drill procedures for all participants, and drills may only be carried out after participants have passed the training. Upon completion of each drill, the relevant materials must be properly archived. In organising fire-fighting and evacuation drills, relevant departments or third-party personnel are also included, so as to enhance coordinated response and collaboration. To strengthen fire prevention and emergency response, the Group implements its annual emergency drill plan by organising all units to carry out drills as scheduled. It requires pre-drill training on emergency plans and key precautions, proper documentation and archiving after drills, and the inclusion of relevant departments or third-party participants in fire- fighting and evacuation drills, thereby enhancing coordinated response capabilities. In April 2025, the Quality Control Centre of Inner Mongolia Company conducted its first fire emergency response drill. The drill focused on key procedures including incident reporting, initial fire response, personnel evacuation and assembly, as well as site control and restoration. It emphasised enhancing employees’ capabilities in fire prevention, evacuation and escape, self-rescue and mutual aid, as well as the proper use and maintenance of fire-fighting equipment. Following the drill, relevant units reviewed process coordination and on-site management practices, converting identified weaknesses into targeted follow-up rectification and training priorities, thereby promoting continuous improvement in emergency response capabilities. In November 2025, Zhongshan Company organised a fire drill in conjunction with a safety hazard identification campaign, advancing both “capability verification through drills” and “risk elimination through inspections” simultaneously. The hazard identification activities focused on key aspects such as the condition of fire hydrants, fire cabinets and extinguishers, as well as the accessibility of fire passages and communication systems, ensuring that fire protection facilities are capable of responding effectively to emergency situations. Non-compliances identified during inspections were promptly rectified and tracked through a closed-loop process. Through this integrated approach of “drills + inspections”, the Group further enhanced employees’ emergency response and evacuation capabilities, while strengthening risk control at source through systematic hazard identification and management, thereby reinforcing the foundation of safe production. Enhancing On-site Emergency Response Capabilities through Fire Drills Integrated with Hazard Identification 96 The United Laboratories International Holdings Limited 2025 Environmental, Social and Governance Report