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Other Disclosures5019Idemitsu Kosan Co.,Ltd.Energy Resources

Selected as a constituent of the 2026 SOMPO Sustainability Index

Idemitsu Kosan was selected as a constituent of the 2026 SOMPO Sustainability Index. As a result, the company is now a constituent of multiple ESG-related indices.

Worth reading
53Recurring
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Improvement
Direction inferred from the company’s description.
Scale
—
Displayed only when the document provides numerical figures.
Wording
Definitive
How definitive the wording is.

Announced details

SOMPO Sustainability Index
Applicable field (uses covered by this announcement)

ESG investment and sustainable investment

Launch dateFiscal 2026 (selected)
What the company reported numerically
Usage history

Adopted by multiple institutional investors, including pension funds

Relationship between the counterparty and the company
Idemitsu Kosan Co.,Ltd.5019
Relationship with the Company

Following an assessment by SOMPO Risk Management Inc., the company was selected as a constituent of the index managed by SOMPO Asset Management Co., Ltd. Capital and personnel relationships are not disclosed.

CounterpartySOMPO Risk Management Inc.; SOMPO Asset Management Co., Ltd.

SOMPO Risk Management Inc. conducts environmental management and ESG management surveys. SOMPO Asset Management Co., Ltd. manages the index. Other information on their locations, representatives, capital and years of establishment is not disclosed.

Award/certification name

Selection as a constituent of the SOMPO Sustainability Index

Awarding / certifying body

Assessment by SOMPO Risk Management Inc. and index management and selection by SOMPO Asset Management Co., Ltd.

Location (as indicated in this announcement)

Approximately 300 constituents

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Source (materials cited by the company)

SOMPO Risk Management Inc.'s environmental management and ESG management surveys

Announced details
ItemDetails
Names of Products / Services CoveredSOMPO Sustainability Index
CounterpartySOMPO Risk Management Inc.; SOMPO Asset Management Co., Ltd.
Counterparty overviewSOMPO Risk Management Inc. conducts environmental management and ESG management surveys. SOMPO Asset Management Co., Ltd. manages the index. Other information on their locations, representatives, capital and years of establishment is not disclosed.
Relationship with the CompanyFollowing an assessment by SOMPO Risk Management Inc., the company was selected as a constituent of the index managed by SOMPO Asset Management Co., Ltd. Capital and personnel relationships are not disclosed.
Launch dateFiscal 2026 (selected)
Applicable areaESG investment and sustainable investment
Award/certification nameSelection as a constituent of the SOMPO Sustainability Index
Awarding / certifying bodyAssessment by SOMPO Risk Management Inc. and index management and selection by SOMPO Asset Management Co., Ltd.
Location scaleApproximately 300 constituents
Usage historyAdopted by multiple institutional investors, including pension funds
SourceSOMPO Risk Management Inc.'s environmental management and ESG management surveys
Items this document does not state (7)
Contract ValueOffering priceContract DateRegistration number and expiry dateLocationQuantitative EffectsImpact on Business Performance

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

The company was selected based on the results of SOMPO Risk Management Inc.'s 2026 assessment, taking into account ESG evaluations and other factors.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Selected as a constituent of the 2026 SOMPO Sustainability Index | Idemitsu Kosan Co.,Ltd. (5019) timely disclosure | Komori