I. Joint Efforts to Ensure Safety

(Mengban Coal Mine Ventilation and Safety Section -- Huang Yong)

In response to the frequent occurrence of coal‑mine safety accidents, Gengban Coal Mine has introduced a series of stringent measures across multiple fronts—ranging from accountability and hazard remediation to disaster prevention, regulatory enforcement, technical standards, and personnel management. At the core of these efforts is a shift in safety management from “post‑incident response” to “proactive prevention,” with the firm aim of firmly curbing serious and extremely serious accidents.

I. Strengthening the Responsibility of All Employees for Workplace Safety

1 The principal person in charge shall be designated as the primary responsible party for work safety, required to be on-site supervising operations, and shall be held strictly and severely accountable under the law for accidents and any instances of concealment or misreporting.

2 Strictly implement the enterprise-wide safety production post responsibility system, ensuring that safety responsibilities are assigned to every position and every employee.

3 Each day, mine management personnel are on duty in the dispatch room, and each shift also assigns an additional administrator—at least a technician—to monitor video feeds in the dispatch room, ensuring full‑video surveillance of all operations.

II. Strengthening Hazard Identification and Dynamic Zeroing-Out

Implement a dynamic zero‑tolerance approach to major accident hazards, establishing a closed-loop process that encompasses hazard identification, reporting, supervision, rectification, acceptance, case closure, and accountability. Coal mines conduct three full‑coverage “double‑day” inspections each month; any major hazard triggers immediate suspension of operations. Qingli Company and the county emergency management bureau carry out unscheduled comprehensive inspections of Gengban Coal Mine, ensuring that all identified hazards are addressed in accordance with the “five‑fix” principle. Priority is given to targeted remediation efforts focusing on roof stability, gas control, hoisting and transportation systems, ventilation, and fire prevention and extinguishing.

III. Strengthening Training and Emergency Management

All‑staff training: The mine manager and responsible personnel shall undergo annual specialized training; personnel engaged in special operations must hold valid certifications before taking up their posts.   Anti-“Three Violations”: Strictly investigate and address unauthorized command, unsafe work practices, and violations of labor discipline. Emergency Response Capability: Refine emergency response plans, ensure adequate rescue equipment is in place, conduct regular drills, and report accidents promptly and truthfully. II. Safety Department of Gengban Coal Mine 2026 year 4 Monthly Safety Awareness Materials

(Wen Zhenke)

On April 16, 2026, leaders of the Group Company conducted a training program to enhance the competencies of shift supervisors at Gengban Coal Mine. As the most grassroots-level managers in coal mining enterprises, shift supervisors are often referred to as the “backbone of the workforce.” They are the direct implementers of safety production laws, regulations, and internal rules, and also bear primary responsibility for on-site safety. Elevating the overall competence of coal mine shift supervisors is crucial for preventing accidents and improving production efficiency.

III. Coal Industry Chief Engineer Xiao Pingchuan visited Gengban Coal Mine to provide guidance.

(Yu Tao, Technical Department, Gengban Coal Mine)

On April 23, Xiao Pingchuan, the company’s chief engineer for the coal industry, and his delegation visited Gengban Coal Mine to provide guidance. They conducted an on-site inspection of the mine’s operations to gain a firsthand understanding of production conditions and held a working discussion with the mine’s management team, thereby charting a clear course for the construction of the main inclined shaft coal bunker at Gengban Coal Mine.

Chief Engineer Xiao Pingchuan and his delegation conducted an on-site inspection of the ongoing maintenance work at the coal bunker of the main inclined shaft at Gengban Coal Mine. They carefully inquired about the operational procedures, the current production status, and the potential challenges that may arise going forward.

At the subsequent special symposium, Chen Lingfa, Chief Engineer of Gengban Coal Mine, Liu Bangyu, Project Manager, and Peng Qishun, Deputy General Manager for Mechanical and Electrical Engineering, each presented a detailed report on the maintenance work at the main inclined shaft coal bunker.

Following the briefing, Xiao Pingchuan, Chief Engineer of the company’s Coal Division, provided a detailed explanation of the key considerations during the maintenance of the main inclined shaft coal bunker at Gengban Coal Mine, guided the preparation of the “Safety Technical Measures for Main Inclined Shaft Coal Bunker Maintenance,” and offered valuable recommendations.

With regard to the next steps in the maintenance of the coal bunker in the main inclined shaft at Gengban Coal Mine, Chief Engineer Xiao Pingchuan put forward three valuable recommendations:

I. Standardize the process

Prior to commencing work, all relevant operating procedures must be strictly adhered to. Hold a site briefing and complete the required reporting in accordance with established protocols.

II. Ensure safety

During operations, safety officers and on-site safety personnel must fulfill their duties to ensure the safety of all workers. Any instances of “three violations” must be promptly stopped, and any safety hazards must be addressed immediately and reported to the dispatch room.

III. Focus on quality

To ensure construction quality, all related work must be completed in one go, eliminating the need for rework. The on-site supervisor and relevant management personnel must rigorously oversee and control project quality.

Chen Lingfa, Chief Engineer of Gengban Coal Mine, expressed his gratitude for the company leadership’s care and guidance, and stated that he would revise the relevant operational procedures in accordance with their recommendations to ensure the work is completed on time, to the required quality, and in full.

IV. Solidly carry out the “Three-Prevention” work.   Strengthen the safety production defense line.

             (Di Ce Shang Jiwen)

To earnestly implement the requirements of relevant documents issued by higher-level regulatory authorities and the Group Company regarding “three defenses” during the rainy season, Gengban Coal Mine has responded proactively and carried out thorough and solid measures. “Three Preventive Measures” for the Rainy Season A series of initiatives, comprehensively strengthening… Flood season Security Fundamentals ， Effectively prevent water-related hazards and ensure mine safety.

Gengban Coal Mine, in light of the mine’s actual conditions, has prepared the “ 2026 Annual “ Work Plan and Implementation Scheme for “Three-Pronged Prevention during the Rainy Season” 》， a checklist is prepared in list format to clearly define the inspection items. Mine manager Yan Chaoqiang personally organized and participated in the special hazard inspection for the rainy-season “three‑prevention” measures, identifying a total of issues. 16 Item. Meanwhile, in accordance with the company… 4 month 15 day -17 Identified during the special inspection on “three preventions” for the rainy season 19 Regarding the identified issues and potential hazards, the mine has established a hazard register in accordance with the “Five Determinations” principle, clearly assigning responsibility for corrective actions, formulating specific remediation measures, and implementing closed-loop management. At present, all rectification efforts are progressing in an orderly manner.

According to the planned schedule, the mine is scheduled to… 4 month 20 In the morning shift, an emergency response drill was conducted, using a water-inrush incident at an underground expansion and repair work site as the scenario. The drill simulated a water‑related hazard, standardized emergency response procedures, and enhanced the entire workforce’s ability to respond promptly and coordinate effectively, ensuring a swift, orderly, and efficient reaction in the event of an unexpected water‑inrush. Following the drill, the command center identified specific issues that arose during the exercise and issued targeted recommendations, calling for further revisions and refinements to the contingency plan and for intensified training to strengthen employees’ risk awareness. Improve Underground mine personnel In the event of a disaster or accident It is possible to evacuate all personnel safely to the ground quickly, efficiently, and in an orderly manner.

Utilize the pre-shift meeting time. All underground workers were organized to undergo training on water control and prevention. Drawing on the contents of the “Coal Mine Safety Regulations” and the “Detailed Rules for Water Control in Coal Mines,” the training covered the identification of water hazards, preventive and remedial measures, and emergency evacuation procedures, thereby strengthening all employees’ awareness of water‑related risks and reinforcing a robust safety mindset.

Going forward, our mine will continue to firmly enforce water-control responsibilities at all levels, systematically carry out comprehensive safety training for all employees, and rigorously conduct hazard identification and remediation. We will ensure that all preventive and control measures are implemented thoroughly and meticulously, thereby fully safeguarding the safe and steady advancement of production operations.