On May 9, 2023, Star Equity Fund, LP issued a press release including an open letter to the board of directors of Superior Drilling Products, Inc. In the letter, Star Equity Fund called on the Board to effectuate, or at least put up for a shareholder vote, a number of matters, including but not limited to whether the Board should hire a financial advisor and conduct a strategic review, and should declassify the Board. Star Equity Fund also discussed its concerns with the Company's corporate governance and the 3 independent Board members: James R. Lines, Robert Iverson, and Micheal V. Ronca. Star Equity Fund further announced its intention to vote "withhold" with respect to Robert Iverson at the Company's 2023 annual meeting of stockholders.