Mimosa Coal Mine
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Mimosa Coal Mine (Mina Mimosa) is a mothballed coal mine in Sabinas, Coahuila, Mexico.
Location
Table 1: Project-level location details
| Mine Name | Location | Coordinates (WGS 84) |
|---|---|---|
| Mimosa Coal Mine | Sabinas, Sabinas, Coahuila, Mexico | 27.62006173, -101.2458814 (approximate) |
The map below shows the approximate location of the coal mine:
Project Details
Table 2: Project status
| Status | Status Detail | Opening Year | Closing Year |
|---|---|---|---|
| Mothballed[1] | – | 1944[2] | – |
Table 3: Operation details
| Capacity (Mtpa) | Production (Mtpa) | Year of Production | Mine Type | Mining Method | Mine Size (km2) | Mine Depth (m) | Workforce Size |
|---|---|---|---|---|---|---|---|
| – | 2.62[3] | 2021[3] | Underground & Surface[2] | Mixed[2] | – | 60.0* | 527* |
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 & Met | Altos Hornos de México (AHMSA) steel plant |
Table 5: Ownership and parent company
| Owner | Parent Company | Headquarters |
|---|---|---|
| Altos Hornos de México (AHMSA) - Grupo Acerero del Norte S.A. de C.V [100%] | Altos Hornos de México (AHMSA) - Grupo Acerero del Norte S.A. de C.V [100%] | Mexico |
Table 6: Historical production (unit: million tonnes per annum)
| ROM or Saleable | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|
| ROM[4] | 3.08[5] | 3.15[5] | – | 2.17[6] | 5.14[4] | – | 2.6[7] |
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
Mimosa coal mines are a group of underground and surface mines in Sabinas, Coahuila, Mexico.[8] The Mimosa mine complex is one of two large mining operations owned by Mexican steel producer Altos Hornos de México (AHMSA) and operated by AHMSA subsidiary Minera Del Norte (Minosa).[8] Mimosa is Mexico's second leading coal producer, surpassed only by AHMSA's Micare mine.[9][10] The Mimosa complex includes 4 underground mines and 1 open cast mine[11], with the collective capacity to produce approximately 4 million tonnes of metallurgical and thermal coal per year.[8] Met coal from the Mimosa mines is transported via a 130-kilometer rail line to the Altos Hornos de México (AHMSA) steel plant, where it is used for steel production.[11] Thermal coal from the mines has historically been sold to CFE (Mexico's federal electricity commission) for energy production.[12]
In 2022, AHMSA shut down Mimosa's Mine VII, whose met coal reserves had been depleted after 15 years of operations.[13] At the same time, the company announced the startup of Mine VIII, whose 100 million tons of high-quality metallurgical coal reserves were expected to play a key role in AHMSA's steel production over the next 30 years.[13]
- Operator: Minera Del Norte (Minosa)[8]
- Owner: Altos Hornos de México (AHMSA)[8]
- Location: Sabinas, Coahuila, Mexico[8]
- Coordinates: 27.62006173, -101.2458814 (Approximate)
- Status: Operating
- Capacity: 4 million tonnes per annum (Mtpa)[8][14]
- Production: 2.617 million tonnes (2021)[9]
- Total Reserves:
- Mineable Reserves:
- Coal Type: Thermal & Met[11]
- Mine Type: Surface & Underground[8]
- Start Year: 1944 [8]
- Source of Financing:
Production
Following a steep downturn in 2020 due to the COVID-19 pandemic, production at the Mimosa mines has rebounded. Global Data estimated that the mines produced 2.6 million tonnes of coal in 2021.[9] As of early 2023, the mines were reportedly continuing to produce at close to their annual capacity of 4 million tpa (tonnes per annum), despite the fact that mine operator Minosa had been forced to seek bankruptcy protection following CFE's unilateral cancellation of coal purchase contracts.[14]
Table 1: Annual Production 2016-2020 - Mimosa Mines
| Year | Met Coal Production (Mtpa) | Thermal Coal Production (Mtpa) | Total Production (Mtpa) |
|---|---|---|---|
| 2020 | 0.41[11] | 0.52[11] | 0.93[11] |
| 2019 | 1.22[11] | 1.46[11] | 2.68[11] |
| 2018 | 1.39[11] | 1.76[11] | 3.15[11] |
| 2017 | 1.37[12] | 1.71[12] | 3.08[12] |
| 2016 | 1.39[12] | 1.09[12] | 2.48[12] |
Accidents
In 2011 one of the mines (Mina Esmeralda) collapsed, killing 4 miners; 132 miners were working in the mine when the accident occurred.[15]
Methane Plumes Detected Nearby
Global Energy Monitor researchers analyze satellite-detected methane plumes in order to determine whether they have been observed at or near the site of GEM energy assets. CarbonMapper provides satellite imagery of individual methane plumes and estimates their emission rates at the time of observation. GEM has reviewed many of these plume detections against Google Earth imagery and GEM’s own energy infrastructure tracker data. (A full description of the analysis process is available in the Global Methane Emitters Tracker methodology wiki page.) The following table lists methane plumes which were observed within the footprint of the energy asset or facility (or, in the case of oil and gas extraction areas, within 10 meters of a well).
Table M1: Plume Details
| Observation date | Satellite data provider | Location of plume origin | Methane emissions rate | Additional plume information |
|---|---|---|---|---|
| 2023-06-27 17:10:11 | CarbonMapper, emi20230627t171011p11031-A | 27.81898059, -101.1817804[16] | 2831.324646 kg/hr[16] | Coahuila Methane Observation 2023-06-27, 1 |
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
- ↑ https://www.bnamericas.com/en/news/investors-eye-bankrupt-ahmsa-but-us-tariffs-could-complicate-deal.
{{cite web}}: Missing or empty|title=(help) - ↑ 2.0 2.1 2.2 https://web.archive.org/web/20240302082211/https://www.ahmsa.com/sobre-ahmsa/subsidiarias/minosa/mimosa.html. Archived from the original on 02 March 2024.
{{cite web}}: Check date values in:|archive-date=(help); Missing or empty|title=(help) - ↑ 3.0 3.1 https://web.archive.org/web/20240302081056/https://www.globaldata.com/data-insights/mining/mexico--five-largest-coal-mines-in-2090765/. Archived from the original on 02 March 2024.
{{cite web}}: Check date values in:|archive-date=(help); Missing or empty|title=(help) - ↑ 4.0 4.1 https://web.archive.org/web/20240302081056/https://www.globaldata.com/data-insights/mining/mexico--five-largest-coal-mines-in-2090765/.
{{cite web}}: Missing or empty|title=(help) - ↑ 5.0 5.1 (PDF) https://web.archive.org/web/20220129220014/https://www.kalyanisteels.com/wp-content/uploads/EC-Letter-073120191.pdf. Archived from the original (PDF) on 29 January 2022.
{{cite web}}: Missing or empty|title=(help) - ↑ https://web.archive.org/web/20240302081122/https://www.mining-technology.com/marketdata/five-largest-coal-mines-mexico-2020/. Archived from the original on 02 March 2024.
{{cite web}}: Check date values in:|archive-date=(help); Missing or empty|title=(help) - ↑ https://www.mining-technology.com/marketdata/five-largest-coal-mines-mexico/?cf-view.
{{cite web}}: Missing or empty|title=(help) - ↑ 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 Cite error: Invalid
<ref>tag; no text was provided for refs named:0 - ↑ 9.0 9.1 9.2 Mexico: Five Largest Coal Mines in 2021, Global Data, accessed December 2022
- ↑ "Five largest coal mines in Mexico in 2020," Mining Technology, September 16, 2021
- ↑ 11.00 11.01 11.02 11.03 11.04 11.05 11.06 11.07 11.08 11.09 11.10 11.11 "Reporte Anual (p 56)" (PDF). AHMSA (Altos Hornos de México). December 31, 2020.
{{cite web}}: CS1 maint: url-status (link) - ↑ 12.0 12.1 12.2 12.3 12.4 12.5 12.6 "Annual Report 2018 (p 72)", AMHSA (Altos Hornos de México), December 31, 2018
- ↑ 13.0 13.1 "AHMSA Shuts Down Operations at Mimosa Mine VII". Mexico Business News. May 18, 2022.
{{cite web}}: CS1 maint: url-status (link) - ↑ 14.0 14.1 "Minera mexicana Minosa se acoge a protección contra la quiebra". BNamericas. January 4, 2023.
{{cite web}}: CS1 maint: url-status (link) - ↑ "Four dead in Mexican coal mine collapse". Reuters. August 26, 2011.
- ↑ 16.0 16.1 url=https://data.carbonmapper.org/
