Sixth Street Specialty Lending, Inc. Reports Full Year and Fourth Quarter 2023 Earnings Results; Declares a First Quarter Base Dividend Per Share of $0.46, and a Fourth Quarter Supplemental Dividend Per Share of $0.08

Sixth Street Specialty Lending, Inc. (NYSE: TSLX, or the “Company”) today reported financial results for the full year and fourth quarter ended December 31, 2023. Please view a printable version of the 2023 Full Year and Fourth Quarter Results.

Conference Call Information:

A conference call to discuss the Company’s financial results will be held at 8:30 a.m. Eastern Time on February 16, 2024. The conference call will be broadcast live in listen-only mode on the Investor Resources section of TSLX’s website at https://sixthstreetspecialtylending.gcs-web.com/events-and-presentatio .... The Events & Presentations page of the Investor Resources section of TSLX’s website also includes a slide presentation that complements the Earnings Conference Call. Please visit the website to test your connection before the webcast.

Research analysts who wish to participate in the conference call must first register at https://register.vevent.com/register/BI126013289d0d4b7e8eca53b37c50ebe .... Upon registration, all telephone participants will receive a confirmation email detailing how to join the conference call, including the dial-in number along with a unique passcode and registrant ID that can be used to access the call.

Replay Information:

A recorded version will be available under the same webcast link (https://sixthstreetspecialtylending.gcs-web.com/events-and-presentatio ...) following the conclusion of the conference call.

Please direct any questions regarding the conference call to TSLX Investor Relations, [e-mail].

About Sixth Street Specialty Lending

Sixth Street Specialty Lending is a specialty finance company focused on lending to middle-market companies. The Company seeks to generate current income primarily in U.S.-domiciled middle-market companies through direct originations of senior secured loans and, to a lesser extent, originations of mezzanine loans and investments in corporate bonds and equity securities. The Company has elected to be regulated as a business development company, or a BDC, under the Investment Company Act of 1940 and the rules and regulations promulgated thereunder. The Company is externally managed by Sixth Street Specialty Lending Advisers, LLC, an affiliate of Sixth Street and a Securities and Exchange Commission (“SEC”) registered investment adviser. The Company leverages the deep investment, sector, and operating resources of Sixth Street, a global investment firm with over $75 billion in assets under management and committed capital. For more information, visit the Company’s website at https://sixthstreetspecialtylending.com.