Sixth Street Specialty Lending(TSLX) - 2024 Q3 - Quarterly Results

Exhibit 99.1 K THIRD QUARTER 2024 EARNINGS RESULTS Sixth Street Specialty Lending, Inc. Reports Third Quarter Results; Declares a Fourth Quarter Base Dividend Per Share of $0.46, and a Third Quarter Supplemental Dividend Per Share of$0.05. NEW YORK — November 5, 2024 — Sixth Street Specialty Lending, Inc. (NYSE: TSLX, or the "Company") today reported net investment income of $0.59 per share and net income of$0.44 per share for the third quarter ended September 30, 2024. These results correspond to an annu ...