Sec Form 4 Filing - Katekovich Raymond @ Sisecam Resources LP - 2023-05-26

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Katekovich Raymond 2. Issuer Name and Ticker or Trading Symbol Sisecam Resources LP [ SIRE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) VP, Sales and Marketing (Last) (First) (Middle) C/O SISECAM RESOURCES LP, FIVE CONCOURSE PARKWAY, SUITE 2500 3. Date of Earliest Transaction (MM/DD/YY) 05/26/2023 (Street) ATLANTA, GA30328 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common units representing limited partner interests 05/26/2023 D( 1 ) 9,022 D $ 25 0 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Katekovich Raymond C/O SISECAM RESOURCES LP FIVE CONCOURSE PARKWAY, SUITE 2500 ATLANTA, GA30328 VP, Sales and Marketing Signatures /s/ Marla Nicholson, Attorney-in-Fact 05/26/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Person ceased to beneficially own the common units representing limited partner interests ("Common Units") in the Issuer reported herein at the Effective Time (as defined below) of the merger (the "Merger") of Sisecam Chemicals Newco LLC, a Delaware limited liability company ("Merger Sub"), with and into the Issuer, with the Issuer surviving the merger and continuing to exist as a Delaware limited partnership. The Merger was effected pursuant to the Agreement and Plan of Merger, dated as of February 1, 2023 (the "Merger Agreement"), by and among the Issuer, Merger Sub and the other parties thereto. The Merger closed and was effective on May 26, 2023 (the "Effective Time"). At the Effective Time, each Common Unit held by the Reporting Person immediately prior to the Merger converted into the right to receive $25.00 per Common Unit in cash without any interest thereon.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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