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SCHEDULE 13D/A 0001203717 XXXXXXXX LIVE 10 Common Units representing limited partnership interests 06/10/2025 false 0001176334 573331105 Martin Midstream Partners L.P. 4200 B Stone Road Kilgore TX 75662 Chris Booth 903-983-6443 4200 B Stone Road Kilgore TX 75662 0001203717 N Martin Resource Management Corp a WC OO N TX 0.00 7592668.23 0.00 7592668.23 7592668.23 N 19.4 CO HC Based on 39,055,086 Common Units outstanding as of June 10, 2025 0001344472 N Martin Resource LLC a OO N DE 4203823.00 0.00 4203823.00 0.00 4203823.00 N 10.8 HC OO Based on 39,055,086 Common Units outstanding as of June 10, 2025 0001477941 N Cross Oil Refining & Marketing, Inc. a OO N DE 889444.00 0.00 889444.00 0.00 889444.00 N 2.3 CO HC Based on 39,055,086 Common Units outstanding as of June 10, 2025 0001203720 N Martin Product Sales LLC a OO N TX 2499401.23 0.00 2499401.23 0.00 2499401.23 N 6.4 HC OO Based on 39,055,086 Common Units outstanding as of June 10, 2025 Common Units representing limited partnership interests Martin Midstream Partners L.P. 4200 B Stone Road Kilgore TX 75662 This joint statement on Schedule 13D (this "Schedule 13D") relates to common units representing limited partner interests ("Common Units") of Martin Midstream Partners L.P., a Delaware limited partnership (the "Issuer"), beneficially owned by the reporting persons. The address of the principal executive offices of the Issuer is 4200 B Stone Road, Kilgore, Texas, 75662. Item 1 Comment: This Schedule 13D is intended to serve as an Amendment No. 10 ("Amendment No. 10") to the joint statement on Schedule 13D filed with the Securities and Exchange Commission (the "Commission") by Martin Resource Management Corporation, a Texas corporation ("Parent"), Martin Resource LLC, a Delaware limited liability company ("Resource"), Cross Oil Refining & Marketing, Inc. ("Cross"), a Delaware corporation, and Martin Product Sales LLC, a Texas limited liability company ("Martin Product," and, together with Parent, Resource, and Cross the "Reporting Persons") on November 21, 2005, as amended on November 10, 2008 ("Amendment No. 1"), November 19, 2008 ("Amendment No. 2"), October 22, 2012 ("Amendment No. 3), August 20, 2014 ("Amendment No. 4"), May 24, 2024 ("Amendment No. 5"), October 3, 2024 ("Amendment No. 6"), December 30, 2024 ("Amendment No. 7"), May 1, 2025 ("Amendment No. 8"), and June 3, 2025 ("Amendment No. 9") (such joint statement on Schedule 13D, as amended by Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment No. 7, Amendment No. 8, and Amendment No. 9, the "Original Schedule 13D"). The purpose of this Amendment No. 10 is to report the acquisition of Common Units by Martin Product. Any capitalized terms used and not defined herein shall have the meanings given to such terms in the Original Schedule 13D and, except as otherwise provided below, the Original Schedule 13D is incorporated herein by reference. The Original Schedule 13D shall not be modified except as specifically provided herein. In accordance with the provisions of General Instruction C to Schedule 13D, information concerning the board of directors or managing member, as applicable, of the Reporting Persons (the "Listed Persons"), required by Item 2 of Schedule 13D is provided on Exhibit 99.A and is incorporated by reference herein. See Item 2(a) above. See Item 2(a) above. See Item 2(a) above. See Item 2(a) above. See Item 2(a) above. Item 3 of the Original Schedule 13D is hereby amended and supplemented as follows: As of June 10, 2025, Martin Product has acquired 610,195.23 of the Issuer's Common Units at an average price of $3.05 per Common Unit since Amendment No. 9 was filed. The funds paid by Martin Product to make such purchase came from working capital and the purpose of the acquisition was for investment purposes. Item 4 of the Original Schedule 13D is hereby amended and supplemented as follows: Item 3 of this Amendment No. 10 is incorporated herein by reference. Item 5 of the Original Schedule 13D is hereby amended and restated in its entirety as follows: The information contained on the cover pages of this Amendment No. 10 and the information set forth in Item 4 of this Amendment No. 10 is incorporated herein by reference. (a) and (b). The following disclosure is based on 39,055,086 Common Units outstanding as of June 10, 2025. See Exhibit 99.A for the information applicable to the Listed Persons. Resource owns 4,203,823 Common Units, representing 10.8% of the outstanding Common Units of Issuer, based on the number of Common Units outstanding as of June 10, 2025. Resource has sole power to vote or direct the vote and to dispose or to direct the disposition of the Common Units owned by it. Cross owns 889,444 Common Units, representing 2.3% of the outstanding Common Units of Issuer, based on the number of Common Units outstanding as of June 10, 2025. Cross has sole power to vote or direct the vote and to dispose or to direct the disposition of the Common Units owned by it. Martin Product owns 2,499,401.23 Common Units, representing 6.4% of the outstanding Common Units of Issuer, based on the number of Common Units outstanding as of June 10, 2025. Martin Product has sole power to vote or direct the vote and to dispose or to direct the disposition of the Common Units owned by it. Parent may be deemed to beneficially own, by virtue of its ownership of Resource, Cross and Martin Product, as described above, 7,592,668.23 Common Units, representing 19.4% of the outstanding Common Units of Issuer, based on the number of Common Units outstanding as of June 10, 2025. By virtue of its ownership of Resource, Cross and Martin Product, as described above, Parent may be deemed to have the power to vote or direct the vote and to dispose or to direct the disposition of the Common Units owned by Resource, Cross and Martin Product as indicated above. The General Partner holds a 2.0% general partner interest in Issuer. See Item 5(a) above. None of the Reporting Persons or, to the Reporting Persons' knowledge, the Listed Persons, have effected any transactions in the Common Units since Amendment No. 9 was filed on June 3, 2025. Other than Issuer's quarterly distributions which all holders of Issuer's Common Units of record are entitled to receive, no person is known by any Reporting Person to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any Common Units owned by any Reporting Person. Not applicable Item 6 of the Original Schedule 13D is hereby amended and supplemented as follows: Item 4 of this Amendment No. 10 is incorporated herein by reference. Item 7 of the Original Schedule 13D is hereby amended and supplemented as follows: Exhibit 99.A The Listed Persons Information. Martin Resource Management Corp Martin Resource Management Corp By: /s/ Sharon L. Taylor, Executive Vice President and Chief Financial Officer 06/11/2025 Martin Resource LLC Martin Resource LLC Martin Resource Management Corp, its sole member, By: /s/ Sharon L. Taylor, Executive Vice President and Chief Financial Officer 06/11/2025 Cross Oil Refining & Marketing, Inc. Cross Oil Refining & Marketing, Inc. By: /s/ Sharon L. Taylor, Executive Vice President and Chief Financial Officer 06/11/2025 Martin Product Sales LLC Martin Product Sales LLC /s/ Sharon L. Taylor, Executive Vice President and Chief Financial Officer 06/11/2025