Direct emissions
92,141
tCO2e
H
HSY
Explore carbon emissions data for HSY. 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 HSY, including reported figures, modelled estimates, disclosure documents and sustainability indicators, so you can review its emissions and compare its performance against similar companies. Read how we source and check this data.
Emissions
Carbon emissions
Total yearly emissions across all scopes
126,776 tCO2e
Scope 1
tCO2e
92,141
Scope 2
tCO2e
24
Scope 3 total
tCO2e
34,611
Scope 3 reported
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
Provenance
Emissions
Factors
2,216,036
kgCO2e / £M
Supplier specific emission factors (kgCO2e / £M)
Modelled
Reported
Scope 1 + 2
Direct + purchased energy
1,611,041
1,611,041
Upstream
+ upstream Scope 3
1,724,824
1,644,707
Total
+ all Scope 3
2,216,036
1,644,707
Which figure should I use?
Use Modelled. It is the most complete view: any categories the company hasn't disclosed are filled with industry-typical estimates, so a transparent company isn't unfairly penalised against one that simply hasn't reported.
Reported counts only emissions the company has filed itself. A blank or low Reported cell doesn't mean those emissions don't exist, just that the company hasn't disclosed them.
When Reported sits close to Modelled, that is a positive signal. The company has disclosed most of its salient emissions and there's little gap for the model to fill. Even then, Modelled is the right figure to use for a like-for-like comparison across companies.
Sustainability
Snapshot
Based on reported data, retrieved with AI
- HSY reported 126,776 tCO₂e in 2025.
- Scope 3 accounted for 27% of emissions.
- Reported across 5 of 15 GHG Protocol Scope 3 categories.
- Total emissions decreased 65.6% from 2024.
- Disclosures available for 3 reporting years (since 2023).
According to available emissions disclosures, HSY reported total yearly emissions of 126,776 tCO₂e in 2025. Scope 1 emissions accounted for 73% of reported output, indicating direct emissions from owned facilities, fleet vehicles, and on-site fuel combustion were the leading contributors to the company's footprint.
The company achieved a Mycelium Score of 2.3, placing it below average for its sector for sustainability performance, and received a transparency score of 73.9, meaning they share a fair amount, though with some gaps along the way.
Total Emissions across all scopes
126,776 tCO2e
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
24
tCO2eMarket based
–
tCO2eScope 3 emissions
Wider value chain emissions across the 15 GHG Protocol categories, from purchased goods and business travel to investments, where reported.
Cat 1
Purchased goods & services
1,273
tCO2eCat 2
Capital goods
0
tCO2eCat 3
Fuel & energy related activities
31
tCO2eCat 4
Upstream transportation & distribution
4,108
tCO2eCat 5
Waste generated in operations
238
tCO2eCat 6
Business travel
605
tCO2eCat 7
Employee commuting
17
tCO2eCat 8
Upstream leased assets
238
tCO2eCat 9
Downstream transportation & distribution
1,290
tCO2eCat 10
Processing of sold products
10,144
tCO2eCat 11
Use of sold products
8,703
tCO2eCat 12
End-of-life treatment of sold products
5,084
tCO2eCat 13
Downstream leased assets
13
tCO2eCat 14
Franchises
2,855
tCO2eCat 15
Investments
13
tCO2e10 values were derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.
Contact Info
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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 sector peers (emissions normalised against revenue). The remaining 3.5 reflect data quality: third-party verified, profile claimed by the company, and full disclosure across all reporting categories.
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. HSY's score sits at the top of this page and in the score panel.
How the Transparency Score is calculated
The Transparency Score measures how much of a company's key emissions data is publicly disclosed, graded from A (very high) down to F (very low). Crucially, it weights each gap by how material that bucket is for the company's industry, so an undisclosed category where the bulk of emissions sit hurts far more than a minor one.
For HSY, the single biggest gap is Processing of sold products (Scope 3 Category 10). Mycelium estimates it accounts for around 8% of the company's total footprint, typically the largest source of emissions for a Retail company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.
Other material categories HSY hasn't disclosed:
- Use of sold products (Scope 3 Category 11), around 7% of the estimated footprint
- End-of-life treatment of sold products (Scope 3 Category 12), around 4% of the estimated footprint
- Upstream transportation & distribution (Scope 3 Category 4), around 3% of the estimated footprint
In total, roughly 22% of HSY'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 methodology
Our 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)
HSY carbon emissions FAQs
What are HSY's carbon emissions?
In its 2025 reporting year, HSY disclosed total emissions of 126,776 tCO2e across all scopes. Scope 1 accounted for the largest share, around 73% of the total.
Does HSY report Scope 1, Scope 2 and Scope 3 emissions?
For 2025, HSY's available disclosure covers Scope 1 (92,141 tCO2e), Scope 2 (24 tCO2e), Scope 3 across 5 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is HSY's emissions reporting?
HSY has a Mycelium transparency score of 73.9 out of 100. The score weights each emissions category by how material it is for the company's industry, so it reflects whether the disclosures that matter most have been made.
Is HSY sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. HSY has a Mycelium Score of 2.3 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 HSY environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. HSY disclosed 126,776 tCO2e for 2025, and its Mycelium Score of 2.3 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.
