Notice Regarding Interim Dividend for the Fiscal Year ending December, 2026

Chugai Pharmaceutical Co., Ltd. (the “Company”) hereby announces that the Company, at its board of directors meeting held on July 24, 2026, resolved the interim dividend for the fiscal year ending December, 2026 as follows.

1. Interim Dividend:
   JPY 66 per share of the common stock of the Company
2. Date when dividends of surplus become effective:
   Friday, August 28, 2026