X0202 SCHEDULE 13G/A 0001604867-24-000006 0001604867 XXXXXXXX LIVE 4 Common Shares, no par value 06/30/2026 0001211583 FENNEC PHARMACEUTICALS INC. 31447P100 PO BOX 13628 68 TW ALEXANDER DRIVE RESEARCH TRIANGLE PARK NC 27709 Rule 13d-1(b) Solas Capital Management, LLC DE 0.00 1889366.00 0.00 1889366.00 1889366.00 5.4 IA HC OO FREDERICK TUCKER GOLDEN X1 0.00 1889366.00 0.00 1889366.00 1889366.00 5.4 HC IN FENNEC PHARMACEUTICALS INC. PO BOX 13628, 68 TW ALEXANDER DRIVE, RESEARCH TRIANGLE PARK, NORTH CAROLINA, 27709. Solas Capital Management, LLC Frederick Tucker Golden Solas Capital Management, LLC 1063 Post Road, 2nd Floor Darien, CT 06820 Frederick Tucker Golden c/o Solas Capital Management, LLC 1063 Post Road, 2nd Floor Darien, CT 06820 Solas Capital Management, LLC - Delaware Frederick Tucker Golden - United States N IA HC Solas Capital Management, LLC is an investment adviser that is registered under the Investment Advisers Act of 1940. Solas Capital Management, LLC, which serves as the investment manager to a private fund (the "Fund") and as sub-adviser to another private fund (the "Other Fund"), which hold securities for the benefit of their investors, and Mr. Frederick Tucker Golden, as Portfolio Manager of Solas Capital Management, LLC, with the power to exercise investment and voting discretion, may be deemed to be the beneficial owners of all shares of Common Stock held by the Fund and by the Other Fund. Pursuant to Rule 13d-4 under the Securities Exchange Act of 1934, as amended, each of the Fund and the Other Fund expressly disclaims beneficial ownership over any of the securities reported in this statement, and the filing of this statement shall not be construed as an admission that either the Fund or the Other Fund are the beneficial owner of any of the securities reported herein. Solas Capital Management, LLC - 1,889,366 Frederick Tucker Golden - 1,889,366 Ownership percentage is based on 34,737,030 shares of common stock outstanding as of May 12, 2026, as represented by the Issuer in the Form 10-Q filed with the Securities and Exchange Commission on May 14, 2026. Solas Capital Management, LLC - 5.4% Frederick Tucker Golden - 5.4% Solas Capital Management, LLC - 0 Frederick Tucker Golden - 0 Solas Capital Management, LLC - 1,889,366 Frederick Tucker Golden - 1,889,366 Solas Capital Management, LLC - 0 Frederick Tucker Golden - 0 Solas Capital Management, LLC - 1,889,366 Frederick Tucker Golden - 1,889,366 Y N See Notes above. N See Notes above. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Solas Capital Management, LLC /s/ Frederick Tucker Golden 08/14/2026 FREDERICK TUCKER GOLDEN /s/ Frederick Tucker Golden 08/14/2026