China Industrial Securities International Financial Group Limited (CISI FIN) announced that its indirect wholly owned subsidiary, CISI Investment Ltd., purchased US$7.00 million principal amount of Mizuho Bank Ltd. 5.185% senior notes on 13 July 2026 for approximately US$6.99 million (HK$54.94 million).

Including earlier open-market purchases completed between 13 May and 9 July 2026, the Group now holds US$20.40 million principal of the same notes, acquired for a total consideration of approximately US$20.39 million (HK$160.06 million).

Note profile • Issuer: Mizuho Bank Ltd., a wholly owned subsidiary of Mizuho Financial Group, Inc. • Issue size: US$2.00 billion senior notes • Coupon: 5.185% fixed, payable annually • Maturity: 16 April 2036 • Issue price: 100% of principal

Transaction mechanics • All trades were executed through securities brokers on the open market; sellers are independent third parties. • Settlements were funded entirely by CISI FIN’s internal resources.

Strategic rationale The Group cites portfolio diversification and the pursuit of stable returns within acceptable risk parameters as key motives for the investment, aligning with its broader strategy of holding a diversified mix of stocks, bonds, funds, structured products and derivatives.

Regulatory context Individually, the 13 July acquisition falls below the 5% threshold under Hong Kong Listing Rule 14.07. However, when aggregated with the five prior purchases (total consideration: US$13.39 million), one of the applicable percentage ratios exceeds 5% but remains under 25%. As a result, the series of acquisitions constitutes a discloseable transaction requiring public reporting but not shareholder approval.