Martin Midstream Partners L.P. (the “Partnership”) today announced that its 2021 Schedule K-3 reflecting items of international tax relevance is available online. Unitholders requiring this information may access their Schedules K-3 at www.taxpackagesupport.com/martinmidstream [taxpackagesupport.com].

A limited number of unitholders (primarily foreign unitholders, unitholders computing a foreign tax credit on their tax return and certain corporate and/or partnership unitholders) may need the detailed information disclosed on Schedule K-3 for their specific reporting requirements. To the extent Schedule K-3 is applicable to your federal income tax return filing needs, we encourage you to review the information contained on this form and refer to the appropriate federal laws and guidance or consult with your tax advisor.

To receive an electronic copy of your Schedule K-3 via email, unitholders may call Tax Package Support toll free at (888) 334-7473.

About Martin Midstream Partners

Martin Midstream Partners L.P. is a publicly traded limited partnership with a diverse set of operations focused primarily in the United States Gulf Coast region. The Partnership's primary business lines include: (1) terminalling, processing, storage, and packaging services for petroleum products and by-products; (2) land and marine transportation services for petroleum products and by-products, chemicals, and specialty products; (3) sulfur and sulfur-based products processing, manufacturing, marketing and distribution; and (4) natural gas liquids marketing, distribution, and transportation services.

Additional information concerning Martin Midstream is available on its website at www.MMLP.com.

MMLP-C

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