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Other Disclosures8923TOSEI CORPORATIONReal Estate

Notice Regarding Continued Inclusion in the JPX-Nikkei Index 400 and JPX-Nikkei Mid and Small Cap Index

トーセイ was selected as a constituent of the 2026 JPX-Nikkei Index 400 and JPX-Nikkei Mid and Small Cap Index. This marks the second consecutive year of selection for the former and the tenth consecutive year for the latter.

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Announced details

JPX-Nikkei Index 400JPX-Nikkei Mid and Small Cap Index
Applicable field (uses covered by this announcement)

Equity markets, investment, capital efficiency and management with investors in mind

Launch date31 August 2026 (the scheduled effective date for the 2026 index constituents)
What the company reported numerically
Quantitative Effects

Selected for the second consecutive year for the JPX-Nikkei Index 400 and the tenth consecutive year for the JPX-Nikkei Mid and Small Cap Index

Relationship between the counterparty and the company
TOSEI CORPORATION8923
Relationship with the Company

トーセイ was selected as a constituent of the stock indices jointly calculated by JPX Market Innovation & Research, Inc. and Nikkei Inc. Capital, personnel and business relationships are not disclosed.

CounterpartyJPX Market Innovation & Research, Inc.Nikkei Inc.

The two companies jointly calculate the indices. Other information on their locations, representatives, capital, year of establishment and business activities is not disclosed.

Award/certification name

JPX-Nikkei Index 400 constituent; JPX-Nikkei Mid and Small Cap Index constituent

Awarding / certifying body

JPX Market Innovation & Research, Inc.; Nikkei Inc.

Registration number and expiry date

31 August 2026–30 August 2027 (FY2026)

Location (as indicated in this announcement)

The JPX-Nikkei Index 400 comprises 400 companies, while the JPX-Nikkei Mid and Small Cap Index comprises 200 companies.

Impact on Business Performance

Impact on financial performance is not disclosed.

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

The websites of JPX Market Innovation & Research, Inc., Nikkei Inc. and Japan Exchange Group, Inc.

Announced details
ItemDetails
Names of Products / Services CoveredJPX-Nikkei Index 400, JPX-Nikkei Mid and Small Cap Index
CounterpartyJPX Market Innovation & Research, Inc., Nikkei Inc.
Counterparty overviewThe two companies jointly calculate the indices. Other information on their locations, representatives, capital, year of establishment and business activities is not disclosed.
Relationship with the Companyトーセイ was selected as a constituent of the stock indices jointly calculated by JPX Market Innovation & Research, Inc. and Nikkei Inc. Capital, personnel and business relationships are not disclosed.
Launch date31 August 2026 (the scheduled effective date for the 2026 index constituents)
Applicable areaEquity markets, investment, capital efficiency and management with investors in mind
Award/certification nameJPX-Nikkei Index 400 constituent; JPX-Nikkei Mid and Small Cap Index constituent
Awarding / certifying bodyJPX Market Innovation & Research, Inc.; Nikkei Inc.
Registration number and expiry date31 August 2026–30 August 2027 (FY2026)
Location scaleThe JPX-Nikkei Index 400 comprises 400 companies, while the JPX-Nikkei Mid and Small Cap Index comprises 200 companies.
Quantitative EffectsSelected for the second consecutive year for the JPX-Nikkei Index 400 and the tenth consecutive year for the JPX-Nikkei Mid and Small Cap Index
Impact on Business PerformanceImpact on financial performance is not disclosed.
SourceThe websites of JPX Market Innovation & Research, Inc., Nikkei Inc. and Japan Exchange Group, Inc.
Items this document does not state (5)
Contract ValueOffering priceContract DateLocationUsage history

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 stated that it met the selection criteria for each index, including the efficient use of capital and management with investors in mind.

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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.
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Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding Continued Inclusion in the JPX-Nikkei Index 400 and JPX-Nikkei Mid and Small Cap Index | TOSEI CORPORATION (8923) timely disclosure | Komori