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Notice Concerning Revisions to Financial Results Forecast and Dividend Forecast

GMO GlobalSign Holdings K.K. (the “Company”) hereby announces that, at a meeting of its Board of Directors held
on October 19, 2026, it resolved to revise its consolidated financial results forecast and year-end dividend forecast
for the fiscal year ending December 31, 2026 (January 1, 2026 to December 31, 2026), previously announced in the
“Summary of Consolidated Financial Results for the Fiscal Year Ended December 31, 2025 (Japanese GAAP)” dated
February 10, 2026, taking into account the recording of an extraordinary gain (gain on sale of shares of a subsidiary)
and other factors, as detailed below.

Notice Concerning Revisions to Financial Results Forecast and Dividend Forecast