INDIANAPOLIS, March 25, 2026 /PRNewswire/ -- Calumet, Inc. (NASDAQ: CLMT) ("Calumet" or the "Company") announced today that Jennifer Straumins, a member of the Company's Board of Directors (the "Board"), has informed the Board of her decision not to seek re-election and to retire at the end of her current term, which expires at the Company's 2026 Annual Meeting of Stockholders. Straumins has served on the Board since July 2024, previously served on the board of Calumet GP, LLC (the "General Partner") from February 2021 to July 2024, and was also an employee of the Partnership for 13 years.