Mimosa Coal Mine

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Mimosa Coal Mine (Mina Mimosa) is an operating 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:

Loading map...

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Project Details

Table 2: Project status

Status	Status Detail	Opening Year	Closing Year
Operating	–	1944	–

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
–	2.617	2021	Underground & Surface	Mixed	–	60*	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	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	3	3	–	2	5	–	2

Note: The above section was automatically generated and is based on data from the Global Coal Mine Tracker April 2024 release and the September supplement.

Background

Mimosa coal mines are a group of underground and surface mines in Sabinas, Coahuila, Mexico. 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). Mimosa is Mexico's second leading coal producer, surpassed only by AHMSA's Micare mine. The Mimosa complex includes 4 underground mines and 1 open cast mine, with the collective capacity to produce approximately 4 million tonnes of metallurgical and thermal coal per year. 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. Thermal coal from the mines has historically been sold to CFE (Mexico's federal electricity commission) for energy production.

In 2022, AHMSA shut down Mimosa's Mine VII, whose met coal reserves had been depleted after 15 years of operations. 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.

• Operator: Minera Del Norte (Minosa)
• Owner: Altos Hornos de México (AHMSA)
• Location: Sabinas, Coahuila, Mexico
• Coordinates: 27.62006173, -101.2458814 (Approximate)
• Status: Operating
• Capacity: 4 million tonnes per annum (Mtpa)
• Production: 2.617 million tonnes (2021)
• Total Reserves:
• Mineable Reserves:
• Coal Type: Thermal & Met
• Mine Type: Surface & Underground
• Start Year: 1944
• 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. 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.

Table 1: Annual Production 2016-2020 - Mimosa Mines

Mtpa = million tonnes per annum

Year	Met Coal Production (Mtpa)	Thermal Coal Production (Mtpa)	Total Production (Mtpa)
2020	0.41	0.52	0.93
2019	1.22	1.46	2.68
2018	1.39	1.76	3.15
2017	1.37	1.71	3.08
2016	1.39	1.09	2.48

Accidents

In 2011 one of the mines (Mina Esmeralda) collapsed, killing 4 miners; 132 miners were working in the mine when the accident occurred.

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.