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 22 May 2024 its issued capital comprised 76,620,653 ordinary shares of £0.01 each, including 23,740,652 shares held in treasury.

Shareholders should therefore use 76,620,653 (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:

Caroline Driscoll

Company SecretaryBlackRock Investment Management (UK) LimitedTel: 0207 743 2427

22 May 2024