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To the Shareholders of TPG TWIN BROOK CAPITAL INCOME FUND,

The 2026 Annual Meeting of Shareholders of TPG TWIN BROOK CAPITAL INCOME FUND will be held on May 28, 2026 for Shareholders of record as of March 31, 2026.

Your vote is important, so please vote at your earliest convenience.

If you own shares through a broker, please follow the instructions that were provided to you by your broker/financial institution.

If you have any questions, please contact AST.

Thank You,

Equiniti Trust Company, LLC

Transfer Agent for TPG TWIN BROOK CAPITAL INCOME FUND