Exhibit 16.1

GRANT THORNTON LLP 500 N. Akard, Suite 1200 Dallas, TX 75201 D   +1 214 561 2300 F   +1 214 561 2370	April 5, 2024 U.S. Securities and Exchange Commission Office of the Chief Accountant 100 F Street, NE Washington, DC 20549 Re:     Stellus Capital Investment Corporation            File No. 814-00971 Dear Sir or Madam: We have read Item 4.01 of Form 8-K of Stellus Capital Investment Corporation dated April 5, 2024, and agree with the statements concerning our Firm contained therein. Very truly yours,
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