Accompanying him were Ms. Trinh Thi Minh Thanh, Standing Deputy Secretary of the Provincial Party Committee, Chairman of the Provincial People's Council; members of the Standing Committee of the Provincial Party Committee, leaders of the Provincial People's Committee and relevant departments and agencies.
Mao Khe - TKV Coal Company, under the Vietnam National Coal - Mineral Industries Holding Corporation Limited, is the coal mine with the longest history of Vietnam's coal industry.
Coal was discovered and exploited in Mao Khe from 1840, under the reign of King Minh Mang; to date, it has gone through 186 years of formation and development.

After the Dien Bien Phu Victory, the Geneva Accords were signed, on November 15, 1954, the decision to restore the Mao Khe mine was announced and became the unit's annual traditional day.
Over 71 years of recovery and development, Mao Khe Coal Company has had more than 24,500 turns of miners working, digging over 900km of coal tunnels, exploiting over 70 million tons of coal, making important contributions to socio-economic development.
The Company was honored to be awarded the title of Hero of the People's Armed Forces by the Party and State; 1 workshop was awarded the title of Hero of Labor in the renovation period and 3 individuals were awarded the title of Hero of Labor.
In 2025, in the context of many difficulties and challenges, the collective of officials, party members and employees of Mao Khe Coal Company have promoted the spirit of solidarity and responsibility, completing the production and business plan. Raw coal production reached 2.5 million tons, jobs and income of workers were guaranteed, average salary reached 22.03 million VND/person/month (equal to 107% of the plan), of which the income of miners reached over 27 million VND/person/month.

Investment, environment, social security, national defense - security sectors continue to be deployed synchronously, creating a foundation for stable and sustainable development.
At the 5 Dong -150/-80 sidewalk market mine, the Secretary of the Quang Ninh Provincial Party Committee and the working delegation directly met, visited, encouraged and presented gifts to miners of Mining Workshop 10, Mao Khe Coal Company who are working and producing.
Sharing the hardships of miners, Secretary Quan Minh Cuong expressed pride in the spirit of labor emulation of workers in the Coal industry, and at the same time sent good wishes to the collective of officials and workers of Mao Khe Coal Company.
Recognizing and praising the achieved results, the Provincial Party Secretary requested Mao Khe Coal Company to continue to pay attention to caring for the material and spiritual life of workers; promote the application of science and technology, mechanization, and automation in production; improve working conditions, ensure labor safety, and improve productivity and efficiency of production and business.
Mr. Cuong also wished that the mining team would continue to promote the tradition of "Discipline and Consensus" of the working class in the Mining Zone, strive to comprehensively complete the production targets in 2026, and build Mao Khe mine to develop more and more in a green, clean, and sustainable direction.
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