Almaznaya Coal Mine

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Almaznaya Coal Mine (Шахта Алмазна) is a mothballed coal mine in Dobropillia, Donetsk, Ukraine.

Location

Table 1: Project-level location details

Mine Name	Location	Coordinates (WGS 84)
Almaznaya Coal Mine	Dobropillia, Donetsk, Ukraine	48.482036, 37.071834 (exact)

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

Loading map...

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Project Details

Table 2: Project status

Status	Status Detail	Opening Year	Closing Year
Mothballed	–	1922	–

Table 3: Operation details

Note: The asterisk (*) signifies that the value is a GEM estimated figure.

Capacity (Mtpa)	Production (Mtpa)	Year of Production	Mine Type	Mining Method	Mine Size (km2)	Mine Depth (m)	Workforce Size
–	0.2	2023	Underground	–	–	730.0*	1059*

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
–	–	–	–	Bituminous	Thermal	–

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
Dobropillyavugillya-vydobutok [100%]	Dobropillyavugillya-vydobutok [100%]	Ukraine

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

Note: The asterisk (*) indicates that the value is an estimated figure based on various factors, including the company's forecasted or reported monthly or quarterly production data, etc.

ROM or Saleable	2017	2018	2019	2020	2021	2022	2023
ROM	–	–	0.93	–	0.71*	–	0.16*

Note: The above section was automatically generated and is based on data from the Global Coal Mine Tracker May 2025 release.

Ownership Tree

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

Background

Almaznaya Coal Mine is an underground coal mine in Donetsk Oblast, Ukraine. The mine used to be part of DTEK Dobropolyeugol, a subsidiary of DTEK Energy. In 2020 DTEK decided to interrupt the lease agreement and in early 2021 returned the mine to the state. Subsequently the mine transitioned under the ownership of State enterprise Dobropillyavugillya-vydobutok.

DTEK Dobropolyeugol includes 5 mines: Novodenetskaya, Almaznaya Coal Mine, Belitskaya Coal Mine, Dobropilska Coal Mine and the smaller Pioneer coal mine. The Almaznaya mine produced 1 million tonnes in 2015 which was the highest production record since 1992.

In 2017, DTEK Dobropolyeugol jointly produced 2.128 Mt of coal. In 2020, it was 2.343 Mt and in 2021 - 2.48 Mt.

The war in Ukraine brought the coal mining complex of Donbas to a state close to critical, for many mines already since 2014. Most of the mines in the occupied territory were flooded. And those in the controlled part of Ukraine barely survive. This issue became especially acute after the start of Russia’s full-scale invasion in 2022.

The Almaznaya coal mine was assumed mothballed, however as per sources from August 2023 it appeared that the mine was operating as it launched a new longwall with more than 0.9 Mt of reserves, planned to be mined in 2023 and 2024. It also appeared to be operating earlier in 2021 as a miner died after being hit by a winch when working underground.

In October 2023, Dobropillyavugillya-vydobutok reported that the company completed the annual mining plan ahead of schedule, producing 0.64 million tonnes of coal. This is joint production of 3 mines of the company that appear to be operating - Almaznaya, Novodonetskaya, and Dobropilska Coal Mine.

As of March 2025, the mine appeared to be not operating as the production results of the company did not include any coal output from the Almaznaya coal mine. It was therefore presumed to be mothballed, as of April 2025.

As of mid-2025, Mykhailo Volynets, head of the Independent Trade Union of Miners of Ukraine, noted that the three state-owned mines of Dobropillyavugillya-vydobutok, including Almaznaya, faced severe operational challenges: Russian shelling caused repeated power outages, while a shortage of qualified workers — due to mobilization and population displacement — further constrained output.

However, by July 2025 the mine appeared to have resumed operations. On July 11, 2025, a rockfall occurred in the third northern longwall at a depth of 550 meters, killing a mining foreman. At the time of the collapse, 134 miners were present in the face, 26 of them in the emergency section.

On August 26, 2025, Russian shelling cut power to mines in the Dobropillia community, leaving 148 miners trapped underground. The Almazna mine was among those affected by the power outage. Around the same time, IndustriALL reported that Russian attacks had also cut power to the Almazna mine and caused flooding at the neighboring Dobropilska mine.

By November 2025, the mine was reported to be flooded and without power. By December 2025, Mykhailo Volynets, head of the Independent Trade Union of Miners of Ukraine, confirmed that Almaznaya was among the two flooded mines of the Dobropillyavugillya-vydobutok enterprise, with Novodonetskaya Coal Mine remaining as the only operating mine in Ukrainian-controlled Donetsk Oblast. The Almaznaya mine's status was therefore revised to mothballed as of early 2026.

In early March 2026, Ukraine's Ministry of Energy announced its initiative to transfer Dobropillyavugillya-vydobutok, the state enterprise that includes Almaznaya, to the State Property Fund for privatization. The stated goal was to attract private investors capable of carrying out technical modernization and preserving jobs at the enterprise's mines.

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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.