Filing Details

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

Amendment No. 1

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes)

1	NAMES OF REPORTING PERSONS
	TTWF LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☐
				(b)	☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	AF (See Item 3)
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			0
		8	SHARED VOTING POWER
			14,122,230 (1)
		9	SOLE DISPOSITIVE POWER
			0
		10	SHARED DISPOSITIVE POWER
			14,122,230 (1)
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	14,122,230 (1)
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	40.1% (1)
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	PN

1	NAMES OF REPORTING PERSONS
	TTWFGP LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☐
				(b)	☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	AF (See Item 3)
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			1,401,869
		8	SHARED VOTING POWER
			14,122,230 (1)
		9	SOLE DISPOSITIVE POWER
			1,401,869
		10	SHARED DISPOSITIVE POWER
			14,122,230 (1)
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	15,524,099 (1)
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	44.1% (2)
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	OO

1	NAMES OF REPORTING PERSONS
	Albert Chao
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☐
				(b)	☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	AF (See Item 3)
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			175,528 (1)
		8	SHARED VOTING POWER
			0
		9	SOLE DISPOSITIVE POWER
			175,528 (1)
		10	SHARED DISPOSITIVE POWER
			0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	175,528 (1)
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	0.5% (2)
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN

1	NAMES OF REPORTING PERSONS
	James Chao
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☐
				(b)	☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	AF (See Item 3)
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			13,908 (1)
		8	SHARED VOTING POWER
			0
		9	SOLE DISPOSITIVE POWER
			13,908 (1)
		10	SHARED DISPOSITIVE POWER
			0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	13,908 (1)
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	0.04% (2)
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN

1	NAMES OF REPORTING PERSONS
	Dorothy C. Jenkins
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☐
				(b)	☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	AF (See Item 3)
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			0
		8	SHARED VOTING POWER
			0
		9	SOLE DISPOSITIVE POWER
			0
		10	SHARED DISPOSITIVE POWER
			0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	0
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	0%
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN

Item 1. Security and Issuer.

This Amendment No. 1 (this “Amendment No. 1”) to Schedule 13D amends the Schedule 13D filed by the Reporting Persons with the SEC on April 8, 2019 regarding the Common Units of Westlake Chemical Partners LP (the “Issuer”), a Delaware registered limited partnership.  The Issuer’s principal executive offices are located at 2801 Post Oak Boulevard, Suite 600, Houston, Texas 77056.

Except as specifically provided herein, this Amendment No. 1 to Schedule 13D does not modify any of the information previously reported on the initial Schedule 13D filed by the Reporting Persons on April 8, 2019.  Capitalized terms used but not otherwise defined in this Amendment No. 1 shall have the meanings ascribed to them in the initial Schedule 13D.

Item 2 (a). Name of Person Filing:

This Amendment No. 1 to Schedule 13D is being filed by and on behalf of the following persons (the “Reporting Persons”)*:

Westlake Corporation (“Westlake”) owns 100% of Westlake Olefins LLC, which owns 100% of Westlake Chemical Investments, Inc., which owns 100% of Westlake Polymers LLC, which owns 100% of WPT LLC (“WPT”), which is the holder of record of 14,122,230 Common Units. TTWF is the holder of record of 92,010,554 shares of common stock of Westlake and may be deemed to share beneficial ownership of the Common Units of which WPT is the record owner. TTWFGP serves as the general partner of TTWF and may be deemed to share beneficial ownership of the Common Units of which WPT is the record owner.

Two trusts held for the benefit of the members of the Chao family – including Albert Chao, James Chao and Dorothy C. Jenkins – are the managers of TTWFGP.  The limited partners of TTWF are five trusts held principally for the benefit of the members of the Chao family, including Albert Chao, James Chao and Dorothy C. Jenkins, and two corporations owned, directly or indirectly, by certain of these trusts and by other entities owned by the Chao family, including Albert Chao, James Chao and Dorothy C. Jenkins.

Based on consideration of the governance principles applicable to TTWF and TTWFGP, Albert Chao, James Chao and Dorothy C. Jenkins are not the beneficial owners of any Common Units directly held or beneficially owned by TTWF or TTWFGP.

* Attached as Exhibit A is a copy of an agreement among the Reporting Persons that this Amendment No. 1 to Schedule 13D is being filed on behalf of each of them.

Item 2 (c). Present Principal Occupation or Employment:

(i)	TTWF is a private investment holding company.

(ii)	TTWFGP is a private investment management company.

(iii)

Albert Chao is President and Chief Executive Officer of Westlake, with its principal address at 2801 Post Oak Boulevard, Suite 600, Houston, Texas, 77056.

(iv)	James Chao is Chairman of the Board of Directors of Westlake, with its principal address at 2801 Post Oak Boulevard, Suite 600, Houston, Texas, 77056.

(v)	Dorothy C. Jenkins is a former Director of Westlake, with its principal address at 2801 Post Oak Boulevard, Suite 600, Houston, Texas, 77056.

Albert Chao is the record owner of 166,435 Common Units and may be deemed to beneficially own 9,093 Common Units representing Issuer limited partnership interests held by a trust over which Albert Chao may be deemed to share beneficial ownership.  Based on consideration of the governance principles applicable to TTWF and TTWFGP, Albert Chao is not the beneficial owner of any Common Units directly held or beneficially owned by TTWF or TTWFGP.

James Chao is the record owner of 13,908 Common Units.  Based on consideration of the governance principles applicable to TTWF and TTWFGP, James Chao is not the beneficial owner of any Common Units directly held or beneficially owned by TTWF or TTWFGP.

SIGNATURE PAGE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 14, 2024

EXHIBIT A

JOINT FILING AGREEMENT

The undersigned agree that the foregoing Amendment No. 1 to Schedule 13D (including any and all amendments thereto) is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k) under the Act and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filings.

Date: February 14, 2024

	TTWF LP
	By:	TTWFGP LLC its General Partner
	By:	/s/ Albert Chao
		Name:	Albert Chao
		Title:	Authorized Representative
	By:	/s/ James Chao
		Name:	James Chao
		Title:	Authorized Representative
	TTWFGP LLC
	By:	/s/ Albert Chao
		Name:	Albert Chao
		Title:	Authorized Representative
	By:	/s/ James Chao
		Name:	James Chao
		Title:	Authorized Representative
	James Chao
	By:	/s/ James Chao
		James Chao
	Dorothy C. Jenkins
	By:	/s/ Dorothy C. Jenkins
		Dorothy C. Jenkins
	Albert Chao
	By:	/s/ Albert Chao
		Albert Chao