UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 17, 2024

CALUMET SPECIALTY PRODUCTS PARTNERS, L.P.

(Exact name of registrant as specified in its charter)

Delaware

000-51734

35-1811116

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

2780 Waterfront Pkwy E. Drive

Suite 200

Indianapolis, Indiana 46214

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code (317) 328-5660

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☒	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities Registered Pursuant to Section 12(b) of the Act:

Title of each class

Trading

symbol(s)

Name of each exchange

on which registered

Common units representing limited partner interests

CLMT

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01

Entry into a Material Definitive Agreement.

As previously disclosed, on February 9, 2024, Calumet Specialty Products Partners, L.P. (the “Partnership”) entered into a Conversion Agreement (as amended, the “Conversion Agreement”) with Calumet, Inc. (“New Calumet”), Calumet Merger Sub I LLC, a wholly owned subsidiary of New Calumet (“Merger Sub I”), Calumet Merger Sub II LLC, a wholly owned subsidiary of New Calumet (“Merger Sub II”), Calumet GP, LLC, the general partner of the Partnership (the “General Partner”) and The Heritage Group and the other owners of the General Partner (collectively, the “Sponsor Parties”) to effectuate a corporate transition of the Partnership to New Calumet that would result in the Partnership and the General Partner becoming subsidiaries of New Calumet (the “Conversion”).

On April 17, 2024, the Partnership entered into that certain First Amendment to Conversion Agreement (the “Conversion Agreement Amendment”), by and among the Partnership, New Calumet, Merger Sub I, Merger Sub II, the General Partner and the Sponsor Parties, to reflect certain changes in the forms of (i) the Amended and Restated Certificate of Incorporation of New Calumet, (ii) the Amended and Restated Bylaws of New Calumet and (iii) the Stockholders Agreement with The Heritage Group, in each case, attached as an exhibit to the Conversion Agreement.

The Board of Directors of the General Partner (the “Board”) has unanimously approved the terms of the Conversion Agreement Amendment and the transactions contemplated thereby. The Board approved the Conversion Agreement Amendment following the recommendation and special approval of the Conflicts Committee of the Board.

The foregoing description of the Conversion Agreement Amendment is not complete and is qualified in its entirety by reference to the complete text of the Conversion Agreement Amendment, a copy of which is attached hereto as Exhibit 2.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Additional Information and Where to Find It

This communication relates to the proposed Conversion between the Partnership and New Calumet. This communication may be deemed to be solicitation material in respect of the proposed Conversion. The proposed Conversion will be submitted to the Partnership’s unitholders for their consideration. In connection with the proposed Conversion, the Partnership and New Calumet have prepared and filed with the SEC a registration statement on Form S-4 (the “Form S-4”) containing a proxy statement/prospectus (the “Proxy Statement/Prospectus”) to be distributed to the Partnership’s unitholders in connection with the Partnership’s solicitation of proxies for the vote of the Partnership’s unitholders in connection with the proposed Conversion and other matters as described in such Proxy Statement/Prospectus. The Proxy Statement/Prospectus will also serve as the prospectus relating to the offer of the securities to be issued to equityholders of the Partnership and the General Partner, in connection with the completion of the proposed Conversion. The Partnership and New Calumet may file other relevant documents with the SEC regarding the proposed Conversion. The definitive Proxy Statement/Prospectus will be mailed to the Partnership’s unitholders when available. BEFORE MAKING ANY VOTING OR INVESTMENT DECISION WITH RESPECT TO THE PROPOSED CONVERSION, INVESTORS AND UNITHOLDERS AND OTHER INTERESTED PERSONS ARE URGED TO READ THE DEFINITIVE PROXY STATEMENT/PROSPECTUS REGARDING THE PROPOSED CONVERSION (INCLUDING ANY AMENDMENTS OR SUPPLEMENTS THERETO) AND OTHER RELEVANT MATERIALS CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED CONVERSION.

The Proxy Statement/Prospectus, any amendments or supplements thereto and other relevant materials, and any other documents filed by the Partnership or New Calumet with the SEC, may be obtained once such documents are filed with the SEC free of charge at the SEC’s website at www.sec.gov or free of charge from the Partnership at www.calumet.com or by directing a written request to the Partnership at 2780 Waterfront Parkway East Drive, Indianapolis, Indiana 46214.

No Offer or Solicitation

This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities, or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

Participants in the Solicitation

The Partnership, the General Partner and certain of the General Partner’s executive officers, directors, other members of management and employees may, under the rules of the SEC, be deemed to be “participants” in the solicitation of proxies in connection with the proposed Conversion. Information regarding the General Partner’s directors and executive officers is available in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2023, which was filed with the SEC on February 29, 2024 (the “Annual Report”). To the extent that holdings of the Partnership’s securities have changed from the amounts reported in the Annual Report, such changes have been or will be reflected on Statements of Changes in Beneficial Ownership on Form 4 filed with the SEC. These documents may be obtained free of charge from the sources indicated above. Information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, are contained, or will be contained, in the Form S-4, the Proxy Statement/Prospectus and other relevant materials relating to the proposed Conversion filed or to be filed with the SEC when they become available. Unitholders and other investors should read the Proxy Statement/Prospectus carefully when it becomes available before making any voting or investment decisions.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits.


Exhibit Number		Description

2.1		First Amendment to Conversion Agreement, dated as of April 17, 2024, by and among Calumet Specialty Products Partners, L.P., Calumet GP, LLC, Calumet, Inc., Calumet Merger Sub I LLC, Calumet Merger Sub II LLC and the other parties thereto.

104		Cover Page Interactive Data File- the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


	CALUMET SPECIALTY PRODUCTS PARTNERS, L.P.

	By:	CALUMET GP, LLC, its General Partner

Date: April 19, 2024	By:	/s/ Todd Borgmann
	Name:	Todd Borgmann
	Title:	Chief Executive Officer

Calumet Specialty Products Partners, L.P. 8-K