Blackrock Sait Regulatory News (BRSA)

BlackRock Sustainable American Income Trust plc (the “Company”)

LEI - 549300WWOCXSC241W468

Voting Rights and Capital (Article 15 Transparency Directive, DTR 5.6)

In conformity with the FCA's Disclosure Guidance and Transparency Rules ("the Rules") provision 5.6.1, the Company would like to notify the market that as at 31 July 2024 its issued capital comprised 74,611,681 ordinary shares of £0.01 each, excluding 25,749,624 shares held in treasury.

Shareholders should therefore use 74,611,681 (being the Company’s issued share capital excluding shares held in treasury) as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in the Company under the Rules.

All enquiries:

Kevin Mayger

Company SecretaryBlackRock Investment Management (UK) LimitedTel: 0207 743 1098

31 July 2024