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Aisin Seiki (former name)

aisin.com 4.3

Explore carbon emissions data for Aisin Seiki (former name). 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 Aisin Seiki (former name), 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

23,547,671 tCO2e

Scope 1

tCO2e

491,009

Scope 2

tCO2e

1,657,897

Scope 3 total

tCO2e

21,398,765

Scope 3 reported

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view full emissions profile

Provenance

Review the sources and documents behind Aisin Seiki (former name)'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
946,704 kgCO2e / £M

Supplier specific emission factors (kgCO2e / £M)

Modelled
Reported
Scope 1 + 2 Direct + purchased energy
86,394
86,394
Upstream + upstream Scope 3
601,279
600,935
Total + all Scope 3
946,704
946,196

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

  • Aisin Seiki (former name) reported 23,547,671 tCO₂e in 2025.
  • Scope 3 accounted for 91% of emissions.
  • Reported across 12 of 15 GHG Protocol Scope 3 categories.
  • Total emissions decreased 6.4% from 2024.
  • Disclosures available for 2 reporting years (since 2024).

According to available emissions disclosures, Aisin Seiki (former name) reported total yearly emissions of 23,547,671 tCO₂e in 2025. Scope 3 emissions accounted for 91% 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 4.3, placing it mid-pack within its sector for sustainability performance, and received a transparency score of 99.7, an exceptional result, reflecting open disclosure across nearly every key emissions metric.

Total Emissions across all scopes

23,547,671 tCO2e

Scope 1 emissions

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

Direct emissions

491,009

tCO2e

Scope 2 emissions

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

Location based

1,657,897

tCO2e

Market based

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

11,022,068

tCO2e

Cat 2

Capital goods

769,659

tCO2e

Cat 3

Fuel & energy related activities

328,008

tCO2e

Cat 4

Upstream transportation & distribution

554,313

tCO2e

Cat 5

Waste generated in operations

55,266

tCO2e

Cat 6

Business travel

17,735

tCO2e

Cat 7

Employee commuting

51,288

tCO2e
ESTIMATED

Cat 8

Upstream leased assets

8,566

tCO2e

Cat 9

Downstream transportation & distribution

192,164

tCO2e

Cat 10

Processing of sold products

311,603

tCO2e

Cat 11

Use of sold products

7,967,008

tCO2e

Cat 12

End-of-life treatment of sold products

21,936

tCO2e
ESTIMATED

Cat 13

Downstream leased assets

2,040

tCO2e
ESTIMATED

Cat 14

Franchises

2,040

tCO2e

Cat 15

Investments

95,071

tCO2e

3 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 2031

Source: Science Based Targets initiative, Companies Taking Action.

Contact Info

Website

www.aisin.com

Address

10 Takane Fujii-cho
444-1192

Country

Japan

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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. Aisin Seiki (former name)'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.

Aisin Seiki (former name) has disclosed the emissions categories that are material for its industry, so there's no single bucket dragging the transparency score down. The breakdown above shows full coverage across the categories that matter most for this kind of company.

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)

Aisin Seiki (former name) carbon emissions FAQs

What are Aisin Seiki (former name)'s carbon emissions?

In its 2025 reporting year, Aisin Seiki (former name) disclosed total emissions of 23,547,671 tCO2e across all scopes. Scope 3 accounted for the largest share, around 91% of the total.

Does Aisin Seiki (former name) report Scope 1, Scope 2 and Scope 3 emissions?

For 2025, Aisin Seiki (former name)'s available disclosure covers Scope 1 (491,009 tCO2e), Scope 2 (1,657,897 tCO2e), Scope 3 across 12 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.

How transparent is Aisin Seiki (former name)'s emissions reporting?

Aisin Seiki (former name) has a Mycelium transparency score of 99.7 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 Aisin Seiki (former name) sustainable?

Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. Aisin Seiki (former name) has a Mycelium Score of 4.3 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 Aisin Seiki (former name) environmentally friendly?

Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. Aisin Seiki (former name) disclosed 23,547,671 tCO2e for 2025, and its Mycelium Score of 4.3 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.