Inaglinsky Surface Coal Mine

This article is part of the Global Coal Mine Tracker, a project of Global Energy Monitor.

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Inaglinsky Surface Coal Mine (Участок открытых горных работ «Инаглинский», разрез «Чульмаканский») is an operating coal mine in Neryungri, Neryungrinsky, Sakha, Russia.

Location

Table 1: Project-level location details

Mine Name	Location	Coordinates (WGS 84)
Inaglinsky Surface Coal Mine	Neryungri, Neryungrinsky, Sakha, Russia	56.943611, 124.750556 (exact)

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

Project Details

Table 2: Project status

Status	Status Detail	Opening Year	Closing Year
Operating	–	2016	–

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
2	0.96	2023	Surface	Open Pit	–	60*	322.8097941*

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
9	–	85	–	Bituminous	Met	Terminal (Export)

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
GOK Inaglinsky JSC [100.0%]	Kolmar LLC	Russia

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	2024	2025
Saleable	1.6	2.6*	3.33	1.7	1.26	1.3	0.96*	–	–

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

Inaglinskiy Surface Coal Mine (Участок открытых горных работ Инаглинский) is a surface mine in Sakha Republic, Russia. In 2025, the Inaglinsky Surface Coal Mine received the name Chulmakansky open-pit mine (разрез «Чульмаканский»). The Inaglinsky coal mine is operated by GOK Inaglinskiy JSC, which is owned by Kolmar. It is part of the Inaglinsky Mining Complex (Инаглинский ГОК) which also includes Inaglinsky-1 coal mine and Inaglinsky-2 coal mine.

Construction of the Inaglinsky surface coal mine started in 2014, its current capacity is 2 million tonnes per annum.

The Inaglinsky-1 washing plant opened in 2016. The Inaglinsky-2 washing plant was commissioned in 2020.

Over January-June 2022, the Inaglinsky Mining Complex (currently consisting of the the Inaglinsky Surface coal mine and Inaglinsky-1 coal mine) produced 3.4 million tonnes, this is almost double compared to the volumes over the same period in 2021. Over 10 months of 2022, the surface mine Inaglinsky produced 1.1 million tonnes, 3% higher than in 2021.

In 2025, a feasibility study for permanent mining conditions was completed, and 41 million tonnes of additional open-pit coal reserves were added, increasing total open-pit reserves to approximately 85 million tonnes.

Inaglinsky Complex

The strategy of Kolmar is to expand the mining complex. Construction of the underground Inaglinsky-1 coal mine was completed in 2020. Construction of the Phase 2 of the underground mine (Inaglinsky-2 coal mine) is under way.

Coal from the Inaglinsky mining complex is exported via the VaninoTransUgol coal terminal, which is owned by Kolmar and began operating in 2020. The terminal, together with the mines and the washing plant, completes the creation of the unified production and logistics complex. Coal exports are targeted at the Asian Pacific region, in particular at China and Japan. About 70% of coking coal shipments are to China.

In 2025, Kolmar’s total coal production amounted to 10.4 million tonnes across its two mining complexes — Inaglinsky and Denisovsky (comprises Denisovsky Central Coal Mine, Denisovsky Vostochny Coal Mine and Denisovsky Surface Coal Mine).

Coal Mine Boundaries and Methane Sources

Global Energy Monitor researchers have identified coal mine boundary/boundaries and potential sources of coal mine methane (CMM) for this mine. These research results can be used to drive CMM attribution and mitigation efforts, particularly when combined with remotely sensed methane plume locations and mine ownership data. Explore the results with the embedded map at the top of this page by clicking on the mine boundary polygon or the CMM placemarkers to reveal more details. A detailed description of this research can be found in Coal Mine Boundaries and Methane Sources. This data is also available as a downloadable companion dataset to the Global Coal Mine Tracker and the Global Methane Emitters Tracker.

Table SMP1: Coal mine boundaries and methane sources data

ID	Mine feature category	Mine feature subcategory	Description	Coordinates precision	Data source date
M0798.B1	mine boundary	surface	Inaglinsky surface coal mine boundary	extracted	2024-07-05 00:00:00
M0798.P1	other	preparation plant	Inaglinsky-1 coal processing plant	extracted	2024-07-05 00:00:00

Table SMP2: Coal mine boundaries and methane sources data (continued)

Coal mine boundaries and methane sources were last researched for this mine on Dec 23, 2025

ID	Notes
M0798.B1	This mine operates under four adjacent subsoil land-use licenses(GOK Inaglinskiy), ЯКУ 04565 ТЭ, ЯКУ 04564 ТЭ, ЯКУ 04639 ТЭ and ЯКУ 05093 ТЭ, as identified through the Preliminary Environmental Assessment of the Proposed Adjustment to the Inaglinskaya Coal Mine Construction Project (Предварительная экологическая оценка намечаемой корректировки проекта строительства угольной шахты «Инаглинская»), https://www.archive.org/details/inaglinskaya-coal-mine, page 5, 2021. The license ЯКУ 04565 ТЭ was issued on November 30, 2015, and is valid until December 25, 2026. The license ЯКУ 04564 ТЭ was issued on November 30, 2015, and is valid until June 1, 2025.The license ЯКУ 04639 ТЭ was issued on April 22, 2016, and is valid until April 30, 2041. The license ЯКУ 05093 ТЭ was issued on September 28, 2016, and is valid until February 24, 2032. License issuance and expiration dates were identified through the Rosnedra license registry, “Register of Subsoil Use Licenses as of January 1, 2024” («Реестр лицензий по состоянию на 01.01.2024 г.»), https://www.archive.org/details/register-of-subsoil-use-licenses-as-of-january-1-2024.The boundary for license ЯКУ 04565 ТЭ was extracted from the NedraExpert portal at https://web.archive.org/web/20251223182237/https://www.nedraexpert.ru/license/135788?ysclid=mjiwunfser782625186. The boundary for license ЯКУ 05093 ТЭ was extracted from the NedraExpert portal at <url>. Polygon boundaries for subsoil licenses ЯКУ 04564 ТЭ and ЯКУ 04639 ТЭ were georeferenced using the Preliminary Environmental Assessment of the Proposed Adjustment to the Inaglinskaya Coal Mine Construction Project («Предварительная экологическая оценка намечаемой корректировки проекта строительства угольной шахты «Инаглинская»), page 94, https://www.archive.org/details/inaglinskaya-coal-mine, 2021. The resulting mine boundary represents the outer perimeter of these four adjacent license areas. The approximate area of the resulting boundary is 170 square km.
M0798.P1	The Inaglinsky-1 plant, referred to in EIA documentation as a "mining and processing plant" (see under "Данные планируемой (намечаемой) хозяйственной и иной деятельности," available here: https://web.archive.org/web/20251009181707/https://o-v-o-s.ru/14/20305 "Корректировка проекта строительства шахты «Инаглинская» АО «ГОК «Инаглинский»," ОВОС: общественные слушания, acessed: October 9, 2025), was identified in a map of the Inaglinsky coal mine and processing complex, available on Kolmar's website (see the linked map titled "Карта объектов" or "Map of objects" in English, which is a general map of Kolmar's mining activities in and around the Chulmakan coal deposit: https://web.archive.org/web/20250923210932/https://www.kolmar.ru/activity/maps/. "Карта объектов," Kolmar, accessed: October 9, 2025). According to Kolmar's website description of the Inaglinsky-1 plant (available by clicking and expanding "ОФ «Инаглинская-1»" on the above map, or here directly: https://web.archive.org/web/20250923210950/https://www.kolmar.ru/activity/maps/of-inaglinskaya-1/ "ОФ «Инаглинская-1»," Kolmar, accessed: Oct. 9, 2025), the processing plant handles raw materials from the complex's open-pit mining operations. For this reason, the Inaglinsky-1 plant was presumed to be more closely associated with the Inaglinsky Surface Coal Mine (GEM ID: M0798), rather than the underground mining operations of the same coal complex (such as Inaglinsky Coal Mine 1, GEM ID: M1265).

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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.