I. National Conference on On-site Supervision and Enforcement for Coal Mine Safety Production

2026 year 3 month 11 On that day, Guizhou Qingli Group Co., Ltd. convened a field meeting on coal mine safety production supervision and inspection at the Qingli Group in Wangjiaying, Nayong. The group’s chairman, Zhou Shili, attended the meeting and made work arrangements.

1 The core objective of the meeting was to resolutely prevent and curb accidents. With Group Chairman Zhou Shili personally in attendance, a comprehensive on-site inspection and mobilization for tackling key safety challenges were conducted across the entire mine, thereby reinforcing safety responsibilities at all levels.

2 Key Actions and Requirements:

  ( 1 ) Focusing on On-site Management: The meeting explicitly stipulated that safety management must be centered on the production front line, with strengthened development and enforcement of on-site safety measures.

  ( 2 ) Strengthen risk management and control: Emphasize the need to conduct comprehensive, end-to-end risk identification and assessment across all production stages, ensuring that control measures are effectively implemented.

  ( 3 ) Strengthening the allocation of responsibilities: Further clarify the safety tasks and accountability for each stage, department, and position, ensuring that responsibilities are assigned to specific individuals.

3 Key priorities for work deployment: The meeting aims to align thinking, establish a high-pressure environment, and ensure that the entire mine implements safety production requirements to the strictest standards, thereby maintaining a sustained and stable safety production situation.

4 The meeting emphasized that the entire mine must remain constantly vigilant about workplace safety, firmly uphold the principle of “safety first,” rigorously enforce safety‑production responsibilities, resolutely guard against complacency and laxity, and ensure that all aspects of safety management are meticulously implemented and effectively carried out.

II. 15301 Production Status of the Fully Mechanized Mining Face

(1) 2026 year 2 month 28 Day and night shifts 15301 The fully mechanized mining face has commenced trial production; on 2026 year 3 month 18 Day and night shifts 15301 The initial caving at the fully mechanized longwall face has been completed, 1#-96# The roof at the hydraulic support has completely collapsed.

(2) 15301 The designed recoverable strike length of the fully mechanized mining face is 570m , mining height 2.2m , coal bulk density 1.52t/m ³, as of 2026 year 3 month 23 Average mining recovery for the day and night shifts 40m , remaining recoverable reserves 25.5 Ten thousand tons.

(3) As 15301 The longwall face is advancing efficiently and steadily, mine capacity is being steadily ramped up, and operating cash flow continues to improve. The longstanding challenge of working capital has been fundamentally resolved, and all operational support functions have fully returned to stability. Production inputs, equipment maintenance, logistical support, and day-to-day operations have all entered a virtuous cycle, laying a solid foundation for the mine’s safe and efficient development.

III. Convene a special meeting on “One Communication and Three Preventive Measures”

2026 year 3 month 18 On [date], Xiao Pingchuan, Chief Engineer of Guizhou Qingli Group Co., Ltd., convened a special working meeting on “One Ventilation and Three Preventive Measures” in the staff training room of the Wangjiaying Qingli Coal Mine. The meeting took gas control as its central theme, focusing on discussing the overall gas control plan for the Wangjiaying Qingli Coal Mine. At the same time, it systematically reviewed and collectively addressed the technical challenges encountered by various departments and divisions in their daily safety production work, while clearly defining responsibilities and setting deadlines for implementation. During the core agenda segment, the meeting specifically focused on… 15301 In-depth evaluation of the gas control plan for the fully mechanized mining face:

(1) Analyze the current patterns of gas outburst at the working face, the spatial distribution of abnormal zones, and the key challenges in gas control.

(2) Compare alternative measures, including optimization of the existing ventilation system, layout of gas drainage boreholes, and enhancement of monitoring and surveillance systems;

(3) Clearly define the next steps regarding the technical approach, construction milestones, and safety assurance measures to ensure… 15301 The gas concentration on the fully mechanized mining face is stably controlled, effectively preventing safety risks such as gas exceedances and accumulations at their source.

(4) This meeting further strengthened accountability for “one ventilation and three prevention” management, refined technical measures for gas control, and solidified the technical safeguards necessary to ensure the mine’s sustained and stable safe production.

IV. Convene “ 15105 Cutting eye and 15303 Special Seminar on the Design of the “Return Airway Scheme” and Final Decision-Making Meeting

2026 year 3 month 18 On that day, Xiao Pingchuan, Chief Engineer of Guizhou Qingli Group Co., Ltd., presided over a meeting in the conference room of the Qingli Coal Mine in Wangjiaying. 15105 and 15303 A special seminar and finalization meeting on the design of the cut‑eye scheme was held, with participation from company and mine‑level leaders, as well as heads and technical personnel from the Technical Department, Production Department, Safety Department, and the construction team. Chief Engineer Xiao Pingchuan clearly outlined the core objective of the meeting: to focus on… 15105、15303 The two design options for the cut‑eye were thoroughly evaluated, and based on considerations of mine production‑extraction coordination, on‑site construction conditions, and economic feasibility, the optimal implementation plan was ultimately selected, providing a precise technical basis for subsequent underground operations. Chief Engineer Xiao Pingchuan encouraged all parties to voice their views fully and instructed the technical department to collate and synthesize the key points of contention, thereby defining the critical criteria for selecting the preferred方案.

V. On-site Supervision of Gas-fired Power Plant Generation Tests

To steadily advance the comprehensive utilization of mine gas and to evaluate the operational efficiency, safety, and reliability of the gas‑fired power generation system, 2026 year 3 month 19 On [date], Deng Feng, the mine manager of the Qingli Coal Mine in Wangjiaying, personally led a team comprising relevant technical personnel, department heads, and the gas‑powered generator station’s operations and maintenance team to conduct a successful on‑site trial of the mine’s gas‑fired power generation system. Prior to the test, Manager Deng headed a comprehensive inspection of critical equipment, including the generator sets, gas‑delivery pipelines, control cabinets, and fire‑protection systems, with particular emphasis on verifying core safety features such as gas‑concentration monitoring and safety interlocks to ensure that all test conditions fully complied with applicable safety standards. During the trial, the technical team rigorously followed established procedures to start up the generator units, gradually adjusting the gas‑inlet flow rate and load while continuously monitoring key parameters—including voltage, current, temperature, and gas concentration—thereby systematically validating the equipment’s stability, power‑generation efficiency, and emergency‑response capabilities under various operating conditions.