Direct emissions
642,074
tCO2e
Back to search resultsEmissions
Sustainability
Scope
REPORTED REPORTED REPORTED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED ESTIMATED 
Read the full scoring methodologyOur white paper covers exactly how the Mycelium Score and Transparency Score are calculated, including the normalisation process and what earns a 10/10.Download the white paper (PDF)
Mycelium Score0.7 / 10Significant room to improveFTransparencyVery LowMinimal disclosure across key areas
Explore carbon emissions data for Nemak. Mycelium helps you review reported emissions, disclosure status, Scope 1, Scope 2 and Scope 3 data, climate targets and sustainability information in one company profile.
This profile brings together available carbon emissions data for Nemak, including reported figures, modelled estimates, disclosure documents and sustainability indicators, so you can review its emissions and compare its performance against similar companies. It is one entry in the Mycelium emissions database. Read how we source and check this data.
Emissions
Carbon emissions
Total yearly emissions across all scopes
8,278,762tCO2e(Market Based)(Mycelium adjusted)
- Reported by Nemak
- 4,531,160 tCO₂e
- Estimated by Mycelium
- 3,747,602 tCO₂e
Nemak reported 55% of the adjusted total. Mycelium estimated the remaining 45% for the categories it did not disclose. Nemak reported a Scope 3 total of 3,552,801 tCO₂e but did not break it down into the 15 categories. The model of the categories it did not report comes to more than that, so the adjusted total counts the model, with the reported figure inside it.
Scope 1
tCO2e
642,074
Scope 2 (Market Based)
tCO2e
336,285
Scope 3 total
tCO2e
7,300,403
Figures from page 53 of the source report
Scope 3 reported
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
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See the scope breakdownProvenance
Emissions
Factors
0.737kgCO2e / $
Supplier specific emission factors (kgCO2e / $)
Modelled
Reported
UpstreamScope 1, 2 + upstream Scope 3
0.737
0.199
Total+ all Scope 3
–
0.923
Per US dollar of revenue. Mycelium models the upstream factor only.
Which figure should I use?
Estimating your own supply-chain emissions from spend with this company? Use Upstream Modelled. The GHG Protocol defines purchased-goods emissions as cradle-to-gate, which means this company's own operations plus its upstream supply chain. Any of those emissions the company has not disclosed are filled with modelled estimates, so a transparent company is not unfairly penalised against one that simply has not reported.
Looking at what the company filed itself? Use the Reported column. Total Reported also includes downstream emissions, such as the lifetime use of the products this company sells, which the GHG Protocol attributes to the users of those products rather than to customers buying goods and services.
Reported counts only emissions the company has filed itself. A blank or low Reported cell does not mean those emissions do not exist, just that the company has not disclosed them. When Upstream Reported sits close to Upstream Modelled, that is a positive signal: the company has disclosed most of its upstream emissions.
Sustainability
Snapshot
Based on reported data, retrieved with AI
- Nemak reported 4,531,160 tCO₂e in 2024.
- Scope 3 accounted for 78% of reported emissions.
- Scope 2 reported under the market based methodology.
According to available emissions disclosures, Nemak reported total yearly emissions of 4,531,160 tCO₂e in 2024. Scope 3 emissions accounted for 78% of the reported footprint, indicating supply chain activity, purchased goods and services, business travel, and wider operational dependencies were the most significant contributors to the company's carbon footprint.
The company achieved a Mycelium Score of 0.7, placing it well below average for its sector for sustainability performance, and received a transparency score of 27.9, pointing to very little public detail on their key emissions.
Scope
breakdown
Scope 1 emissions
Direct emissions from sources the company owns or controls, such as fuel use, facilities and vehicles.
Scope 2 emissions
Indirect emissions from purchased energy, including electricity, heating and cooling.
Location based
517,313
tCO2eMarket based USED IN TOTAL
336,285
tCO2eScope 3 emissions
Wider value chain emissions across the 15 GHG Protocol categories, from purchased goods and business travel to investments, where reported.
Nemak reported a Scope 3 total of 3,552,801 tCO₂e but did not break it down into the 15 categories. Mycelium's model of the categories it did not report comes to more than that, so the estimates below replace it in the adjusted total, with the reported figure counted inside them. The reported figure is not discarded, and you can see it in the downloads below.
Cat 1
Purchased goods & services
2,361,889
tCO2eCat 2
Capital goods
85,425
tCO2eCat 3
Fuel & energy related activities
45,129
tCO2eCat 4
Upstream transportation & distribution
94,015
tCO2eCat 5
Waste generated in operations
12,393
tCO2eCat 6
Business travel
5,809
tCO2eCat 7
Employee commuting
24,575
tCO2eCat 8
Upstream leased assets
6,840
tCO2eCat 9
Downstream transportation & distribution
51,920
tCO2eCat 10
Processing of sold products
59,207
tCO2eCat 11
Use of sold products
4,457,444
tCO2eCat 12
End-of-life treatment of sold products
63,155
tCO2eCat 13
Downstream leased assets
3,892
tCO2eCat 14
Franchises
16,605
tCO2eCat 15
Investments
12,103
tCO2e15 values were derived via Mycelium's normalisation process rather than reported by the company. The company's own Scope 3 total is reported, it was simply filed as a single figure with no category split. A cell marked “ESTIMATED” is a figure the company did not disclose, modelled by Mycelium.
Verification
Independent third parties involved in checking or preparing Nemak's emissions data.
Independent assurance
Independently assured(limited assurance)by Apex Companies LLCfor 2024
Carbon accountant
Nemak Global HSE Department for Scope 1 and 2; various departments for Scope 3prepared the 2024 figures
Climate targets
Science Based Targets initiative
Near-term target
Targets set (Well-below 2°C), target year 2030
Source: Science Based Targets initiative, Companies Taking Action.
Contact Info
Website
www.nemak.comCountry
Mexico
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How scoring works
How the Mycelium Score is calculated
The Mycelium Score is out of 10. Up to 6.5 points reflect carbon intensity vs peers in the same NACE section (emissions normalised against revenue, log-scaled between the 5th and 95th percentile of each company's latest reporting year in that section; a section needs at least 5 companies to be benchmarked). The band above 6.5 is earned through verified data quality on a claimed profile: declaring every reporting category yourself (up to 2.0), preparation by a carbon accountant (2.0) and independently audited figures (2.0). The total is multiplied by the transparency score and capped at 10. A disclosure with an implausibly large figure (Scope 1 or 2 over 300 million tonnes, a Scope 3 figure over 2 billion tonnes or a total over 2.5 billion tonnes) is not scored until it has been checked.
A higher score means lower carbon intensity than sector peers, backed by data that's third-party verified, claimed by the company, and fully disclosed. Nemak's score sits at the top of this page and in the score panel. Without a revenue figure to measure carbon intensity, or an industry classification to compare it within, a company has no score.
How the Transparency Score is calculated
The Transparency Score is the share of a company's estimated footprint that it reported itself, graded from A (very high) down to F (very low). Where a category is missing, Mycelium models what it would hold for a company of that size and industry and counts it as undisclosed, so an unreported category where the bulk of emissions sit hurts far more than a minor one. Unreported downstream categories (9 to 15) count at a quarter of their modelled size in this share; the carbon intensity behind the score still counts them in full. A Scope 3 total filed without a category breakdown earns very little credit for the part left unattributed, because it does not show which categories are inside it: a company can count business travel, leave purchased goods out entirely, and the total looks the same. Without a revenue figure the footprint cannot be modelled, so the company has no Transparency Score.
For Nemak, the single biggest gap is Use of sold products (Scope 3 Category 11). Mycelium estimates it accounts for around 54% of the company's estimated footprint, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.
Other material categories Nemak hasn't disclosed:
- Purchased goods & services (Scope 3 Category 1), around 29% of the estimated footprint
In total, roughly 88% of Nemak's estimated emissions sit in categories it hasn't reported. Disclosing these would be the fastest way to raise the transparency score.
Read the full scoring methodologyOur white paper covers exactly how the Mycelium Score and Transparency Score are calculated, including the normalisation process and what earns a 10/10.Download the white paper (PDF)Compare Nemak with similar companies
Nemak carbon emissions FAQs
What are Nemak's carbon emissions?
In its 2024 reporting year, Nemak disclosed total emissions of 4,531,160 tCO2e across all scopes. Including Mycelium estimates for undisclosed categories, the adjusted total is 8,278,762 tCO2e. Scope 3 accounted for the largest share of the reported total, around 78%.
Does Nemak report Scope 1, Scope 2 and Scope 3 emissions?
For 2024, Nemak's available disclosure covers Scope 1 (642,074 tCO2e), Scope 2 (336,285 tCO2e) and a Scope 3 total of 3,552,801 tCO2e without a category breakdown. Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is Nemak's emissions reporting?
Nemak has a Mycelium transparency score of 27.9 out of 100. The score is the share of the company's estimated footprint that it reported itself, so an undisclosed category where most of its emissions sit weighs far more than a minor one.
Is Nemak sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. Nemak has a Mycelium Score of 0.7 out of 10, which reflects its emissions intensity against sector peers together with how transparent and well-verified its reporting is. The emissions figures, disclosure documents and climate targets on this page give the fuller picture.
Is Nemak environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. Nemak disclosed 4,531,160 tCO2e for 2024, and its Mycelium Score of 0.7 out of 10 shows how that performance compares with similar companies in its sector.
Learn more about our methodology and where this data comes from.