Mine at Deo Nai

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Mine at Deo Nai is an operating coal mine in Cam Tay Ward, Cam Pha Town, Quang Ninh Province, Cam Pha, Quang Ninh, Vietnam.

Location

Table 1: Project-level location details

Mine Name Location Coordinates (WGS 84)
Mine at Deo Nai Cam Tay Ward, Cam Pha Town, Quang Ninh Province, Cam Pha, Quang Ninh, Vietnam[1] 21.02, 107.29 (exact)

The map below shows the exact location of the coal mine:

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Project Details

Table 2: Project status

Status Status Detail Opening Year Closing Year
Operating[2] – 1960[3] –

Table 3: Operation details

Capacity (Mtpa) Production (Mtpa) Year of Production Mine Type Mining Method Mine Size (km2) Mine Depth (m) Workforce Size
– 1.8[4] 2023[4] Surface[5] Open Pit[5] 6[6] 210[7] 1654[8]

Table 4: Coal resources and destination

Total Reserves (Mt) Year of Total Reserves Recorded Total Resources (Mt) Coalfield Coal Type Coal Grade Primary Consumer/ Destination
42.5 – – Cam Pha[9] Anthracite[10] Thermal[10] –

Table 5: Ownership and parent company

Note: To access more comprehensive data on energy ownership, please visit the Global Energy Ownership Tracker.
Owner Parent Company Headquarters
Deo Nai - Coc Sau - TKV Coal Joint Stock Company [100.0%][11] Vietnam National Coal (Vinacomin) Vietnam

Table 6: Historical production (unit: million tonnes per annum)

ROM or Saleable 2017 2018 2019 2020 2021 2022 2023 2024 2025
ROM – 2.1[12] 2.27[12] 2[13] 2.25[14] 2.6[8] 1.8[4] – –

Note: The above sections were automatically generated and are based on data from the Global Coal Mine Tracker August 2026 release.

Ownership Tree

This ownership tree is part of the Global Energy Ownership Tracker, a project of Global Energy Monitor.

Background

Mine at Deo Nai is operated by Deo Nai Coal Company, a subsidiary of Vietnam National Coal (Vinacomin), in Cam Pha, Vietnam.[15] The mine is operated by Deo Nai Coal Company, a subsidiary of Vietnam National Coal (Vinacomin).[15] The mine produces anthracite, the coal type characteristic of the wider Quảng Ninh coalfield, which holds the large majority of Vietnam's coal reserves.[16]

As of a 2023 report, the mine employed 1,865 people, of whom 1,654 were direct production workers; from 2017 to 2022, the mine's overall coal output totaled more than 13.6 million tonnes, with roughly 124.5 million cubic meters of overburden removed and more than 13.5 million tonnes of coal sold over that period.[17]

Effective July 1, 2024, it was consolidated with the adjacent Coc Sau mine into a single company, Deo Nai – Coc Sau Coal Joint Stock Company – TKV, following a shareholder-approved restructuring.[18]

As of 2025, an industry report described a subsequent 2,075-billion-đồng expansion project for the merged Coc Sau–Deo Nai operations aimed at raising combined output above 2.5 million tonnes per year.[19]

  • Sponsor: Deo Nai Coal Stock Company
  • Parent Company: Vietnam National Coal (Vinacomin)
  • Location: Cam Pha, Quang Ninh, Vietnam
  • GPS Coordinates:21.02, 107.29 (approximate)
  • Status: Operating[20]
  • Production Capacity: 1.7 mtpa[15]
  • Total Resource:
  • Mineable Reserves: 42.5 million tonnes (Proven Reserve, 2018) [21]
  • Coal type: Bituminous
  • Mine Size:
  • Mine Type: Surace[20]
  • Start Year:
  • Source of Financing:

Related GEM.wiki articles

Articles and Resources

Additional data

To access additional data, including an interactive map of world coal mines, a downloadable dataset, and summary data, please visit the Global Coal Mine Tracker on the Global Energy Monitor website.

References

  1. ↑ https://deonai.com.vn/trang-chu/. {{cite web}}: Missing or empty |title= (help)
  2. ↑ Quang Ninh: Deo Nai coal mine celebrates the 60th anniversary of Uncle Ho's visit (baoxaydung.com.vn)
  3. ↑ Quang Ninh: Deo Nai coal mine celebrates the 60th anniversary of Uncle Ho's visit (baoxaydung.com.vn)
  4. ↑ 4.0 4.1 4.2 https://doanhnghiep.quangninh.gov.vn/Trang/ChiTietTinTuc.aspx?nid=6402. {{cite web}}: Missing or empty |title= (help)
  5. ↑ 5.0 5.1 https://baoxaydung.com.vn/quang-ninh-mo-than-deo-nai-ky-niem-60-nam-ngay-bac-ho-ve-tham-251105.html. {{cite web}}: Missing or empty |title= (help)
  6. ↑ Deo Nai Coal Joint Stock Company: Focusing on technology application - (vinacomin.vn)
  7. ↑ Deo Nai Coal Joint Stock Company: Focusing on technology application - (vinacomin.vn)
  8. ↑ 8.0 8.1 https://web.archive.org/web/20260527032944/https://doanhnghiep.quangninh.gov.vn/Trang/ChiTietTinTuc.aspx?nid=5409. Archived from the original on 27 May 2026. {{cite web}}: Missing or empty |title= (help)
  9. ↑ Quang Ninh: Deo Nai coal mine celebrates the 60th anniversary of Uncle Ho's visit (baoxaydung.com.vn)
  10. ↑ 10.0 10.1 https://thuanhai.com.vn/news/market-news/vietnam-coal-overview-and-outstanding-features.html. {{cite web}}: Missing or empty |title= (help)
  11. ↑ https://web.archive.org/web/20260702001942/https://vinacomin.vn/vi/news/slug/cong-ty-cp-than-deo-nai-coc-sau-tkv-to-chuc-thanh-cong-dai-hoi-dong-co-dong-bat-thuong-nam-2024. Archived from the original on 02 July 2026. {{cite web}}: Check date values in: |archive-date= (help); Missing or empty |title= (help)
  12. ↑ 12.0 12.1 https://baotintuc.vn/thoi-su/ky-niem-60-nam-ngay-bac-ho-ve-tham-mo-than-deo-nai-quang-ninh-20190328191210509.htm. {{cite web}}: Missing or empty |title= (help)
  13. ↑ https://khcncongthuong.vn/tin-tuc/t7329/cong-ty-co-phan-than-deo-nai-chu-trong-ung-dung-cong-nghe.html. {{cite web}}: Missing or empty |title= (help)
  14. ↑ https://dichvucong.quangninh.gov.vn/Default.aspx?tabid=121&ctl=ndetail&mid=511&nid=185661. {{cite web}}: Missing or empty |title= (help)
  15. ↑ 15.0 15.1 15.2 Van How Pham, Xuan Nam But, Van Quyen Le, The The Hot Le, and Van Viet Pham, "Estimation of Truck-Shovel Dispatching in Car Son Open Pit Coal Mine and the Ability in Applying Information Technology for Increasing Its Efficiency", Journal of the Polish Mineral Engineering Society, February 2020:21:27
  16. ↑ "VIETNAMESE COAL: Overview And Outstanding Features". Thuan Hai Corporation. Retrieved 2026-09-10.{{cite web}}: CS1 maint: url-status (link)
  17. ↑ "Than Đèo Nai đồng hành cùng người lao động". Cổng thông tin điện tử Hỗ trợ doanh nghiệp - Tỉnh Quảng Ninh. 2023-03-24. Retrieved 2026-09-10.{{cite web}}: CS1 maint: url-status (link)
  18. ↑ "Công ty CP Than Đèo Nai - Cọc Sáu - TKV tổ chức thành công Đại hội đồng cổ đông bất thường năm 2024". Vinacomin (TKV). Retrieved 2026-09-10.{{cite web}}: CS1 maint: url-status (link)
  19. ↑ "Mở rộng khai thác mỏ than Cọc Sáu – Đèo Nai sau sáp nhập". Công ty Cổ phần Xuất nhập khẩu Vật tư Máy móc T&T. 2025-11-07. Retrieved 2026-09-10.{{cite web}}: CS1 maint: url-status (link)
  20. ↑ 20.0 20.1 M.G. Mustafin, Tran Thanh-Son, Tran Manh-Hung, Comprehensive impact assessment development of the Coal field Campha in Vietnam to the coastal territory,IOP Conference Series: Materials Science and Engineering 698 (2019)
  21. ↑ Nguyen, H., Bui, XN., Bui, HB. et al., "A comparative study of artificial neural networks in predicting blast-induced air-blast overpressure at Deo Nai open-pit coal mine", Vietnam. Neural Comput & Applic 32, 3939–3955 (2020). https://doi.org/10.1007/s00521-018-3717-5