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Johnson Matthey PLC

matthey.com 6.2

Explore carbon emissions data for Johnson Matthey PLC. 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 Johnson Matthey PLC, 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.

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Emissions

Carbon emissions

Structured data JSON-LD, Open Corporate Carbon Footprint Data Model Spreadsheet CSV

Open Corporate Carbon Footprint Data Model, by the Carbon Accounting Alliance with Murmurate Digital, Mycelium and Roundarc.

Total yearly emissions across all scopes

3,755,369 tCO2e (Market Based)

Scope 1

tCO2e

233,300

Scope 2 (Market Based)

tCO2e

130,386

Scope 3 total

tCO2e

3,391,683

Scope 3 reported

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view full emissions profile

Provenance

Review the sources and documents behind Johnson Matthey PLC's emissions data. Provenance matters because it shows where the information comes from, how recent it is and how complete the disclosure appears to be.

Documents

Carbon accountant

Emissions
Factors

Modelled emission factor Total, all scopes including all Scope 3
292,588 kgCO2e / £M

Supplier specific emission factors (kgCO2e / £M)

Modelled
Reported
Scope 1 + 2 Direct + purchased energy
28,335
28,335
Upstream + upstream Scope 3
247,973
247,973
Total + all Scope 3
292,588
257,728

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

  • Johnson Matthey PLC reported 3,755,369 tCO₂e in 2023.
  • Scope 3 accounted for 90% of emissions.
  • Reported across 10 of 15 GHG Protocol Scope 3 categories.
  • Scope 2 reported under the market based methodology.

According to available emissions disclosures, Johnson Matthey PLC reported total yearly emissions of 3,755,369 tCO₂e in 2023. Scope 3 emissions accounted for 90% of reported output, 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 6.2, placing it strongly within its sector for sustainability performance, and received a transparency score of 97.9, an exceptional result, reflecting open disclosure across nearly every key emissions metric.

Total Emissions across all scopes

3,755,369 tCO2e (Market Based)

Scope 1 emissions

Direct emissions from sources the company owns or controls, such as fuel use, facilities and vehicles.

Direct emissions

233,300

tCO2e

Scope 2 emissions

Indirect emissions from purchased energy, including electricity, heating and cooling.

Location based

204,848

tCO2e

Market based

130,386

tCO2e

Scope 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

2,495,475

tCO2e

Cat 2

Capital goods

177,329

tCO2e

Cat 3

Fuel & energy related activities

41,018

tCO2e

Cat 4

Upstream transportation & distribution

81,999

tCO2e

Cat 5

Waste generated in operations

4,004

tCO2e

Cat 6

Business travel

5,077

tCO2e

Cat 7

Employee commuting

13,627

tCO2e

Cat 8

Upstream leased assets

523

tCO2e
ESTIMATED

Cat 9

Downstream transportation & distribution

47,644

tCO2e
ESTIMATED

Cat 10

Processing of sold products

256,861

tCO2e

Cat 11

Use of sold products

0

tCO2e
ESTIMATED

Cat 12

End-of-life treatment of sold products

47,644

tCO2e
ESTIMATED

Cat 13

Downstream leased assets

47,644

tCO2e
ESTIMATED

Cat 14

Franchises

47,644

tCO2e

Cat 15

Investments

125,196

tCO2e

5 values were derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.

Structured data JSON-LD, Open Corporate Carbon Footprint Data Model Spreadsheet CSV

Open Corporate Carbon Footprint Data Model, by the Carbon Accounting Alliance with Murmurate Digital, Mycelium and Roundarc.

Climate targets

Science Based Targets initiative

Near-term target

Targets set (1.5°C), target year 2030

Long-term target

Targets set, target year 2040

Net zero

Targets set, by 2040

Source: Science Based Targets initiative, Companies Taking Action.

Contact Info

Website

www.matthey.com

Address

5th Floor
25 Farringdon Street
London
London
Greater London (City Of London)
EC4A 4AB

Country

United Kingdom

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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. Johnson Matthey PLC'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 Johnson Matthey PLC, the single biggest gap is Processing of sold products (Scope 3 Category 10). Mycelium estimates it accounts for around 7% of the company's total footprint, typically the largest source of emissions for a Power Generation company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.

In total, roughly 7% of Johnson Matthey PLC's estimated emissions sit in categories it hasn't reported. Disclosing these would be the fastest way to raise the transparency score.

Cover of Mycelium's scoring methodology white paper 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)

Johnson Matthey PLC carbon emissions FAQs

What are Johnson Matthey PLC's carbon emissions?

In its 2023 reporting year, Johnson Matthey PLC disclosed total emissions of 3,755,369 tCO2e across all scopes. Scope 3 accounted for the largest share, around 90% of the total.

Does Johnson Matthey PLC report Scope 1, Scope 2 and Scope 3 emissions?

For 2023, Johnson Matthey PLC's available disclosure covers Scope 1 (233,300 tCO2e), Scope 2 (130,386 tCO2e), Scope 3 across 10 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.

How transparent is Johnson Matthey PLC's emissions reporting?

Johnson Matthey PLC has a Mycelium transparency score of 97.9 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 Johnson Matthey PLC sustainable?

Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. Johnson Matthey PLC has a Mycelium Score of 6.2 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 Johnson Matthey PLC environmentally friendly?

Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. Johnson Matthey PLC disclosed 3,755,369 tCO2e for 2023, and its Mycelium Score of 6.2 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.