# EDGAR Filing Document

**Accession Number:** 0001299601
**File Stem:** 0000895345-23-000014
**Filing Date:** 2023-1
**Character Count:** 30385
**Document Hash:** 9af68f731c90141768e6e97200d663bf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000895345-23-000014.hdr.sgml**: 20230118

**ACCESSION NUMBER**: 0000895345-23-000014

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230118

**DATE AS OF CHANGE**: 20230118

**GROUP MEMBERS**: ALBERT CHAO

**GROUP MEMBERS**: DOROTHY C. JENKINS

**GROUP MEMBERS**: JAMES CHAO

**GROUP MEMBERS**: TTWFGP LLC

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WESTLAKE CORP
- **CENTRAL INDEX KEY:** 0001262823
- **STANDARD INDUSTRIAL CLASSIFICATION:** INDUSTRIAL ORGANIC CHEMICALS [2860]
- **IRS NUMBER:** 760346924
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-80528
- **FILM NUMBER:** 23534703

**BUSINESS ADDRESS:**
- **STREET 1:** 2801 POST OAK BLVD
- **STREET 2:** SUITE 600
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056
- **BUSINESS PHONE:** 713-960-9111

**MAIL ADDRESS:**
- **STREET 1:** 2801 POST OAK BLVD
- **STREET 2:** SUITE 600
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WESTLAKE CHEMICAL CORP
- **DATE OF NAME CHANGE:** 20030908
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TTWF LP
- **CENTRAL INDEX KEY:** 0001299601
- **IRS NUMBER:** 760346924
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 2801 POST OAK BLVD, SUITE 600
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056
- **BUSINESS PHONE:** 713.960.9111

**MAIL ADDRESS:**
- **STREET 1:** 2801 POST OAK BLVD, SUITE 600
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056

------

#### UNITED STATES

#### SECURITIES AND EXCHANGE COMMISSION<br> Washington, D.C. 20549

### SCHEDULE 13G

#### Under the Securities Exchange Act of 1934

#### (Amendment No. 18)\*

---

| |
|:---|
| WESTLAKE CORPORATION <br>|
| (Name of Issuer) |
| **COMMON STOCK** |
| (Title of Class of Securities) |
| **960413102** |
| (CUSIP Number) |
| December 31, 2022 <br>|
| (Date of Event Which Requires Filing of this Statement) |

---

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

☐ Rule 13d-1(c)

☒ Rule 13d-1(d)

\*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).

------

---

| | |
|:---|:---|
| **CUSIP No. 960413102** | **13G** |

---

---

| | | |
|:---|:---|:---|
| **1** | **NAMES OF REPORTING PERSONS** | **NAMES OF REPORTING PERSONS** |
| **1** | **TTWF LP** | **TTWF LP** |
| **1** | **TTWF LP** | **TTWF LP** |
| **2** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** |
| **2** | (a) ☒ | (a) ☒ |
| **2** | (b) ☐ | (b) ☐ |
| **3** | **SEC USE ONLY** | **SEC USE ONLY** |
| **3** |  |  |
| **3** |  |  |
| **4** | **CITIZENSHIP OR PLACE OF ORGANIZATION** | **CITIZENSHIP OR PLACE OF ORGANIZATION** |
| **4** | Delaware  | Delaware  |
| **4** | Delaware  | Delaware  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | **SOLE VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 0  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 0  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | **SHARED VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 92010554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 92010554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **SOLE DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | 0  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | 0  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **SHARED DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **92010554**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **92010554**  |
| **9** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** |
| **9** | **92010554**  | **92010554**  |
| **9** | **92010554**  | **92010554**  |
| **10** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** |
| **10** | ☐ | ☐ |
| **10** | ☐ | ☐ |
| **11** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** |
| **11** | 72.2% (1)  | 72.2% (1)  |
| **11** | 72.2% (1)  | 72.2% (1)  |
| **12** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** |
| **12** | **PN**  | **PN**  |
| **12** | **PN**  | **PN**  |

---

(1) Based upon 127,381,725 shares of Westlake Corporation's ("Issuer") common stock, par value $0.01 per share ("Common Stock") outstanding as of December 31, 2022, based upon
 information provided by the Issuer.

------

---

| | |
|:---|:---|
| **CUSIP No. 960413102** | **13G** |

---

---

| | | |
|:---|:---|:---|
| **1** | **NAMES OF REPORTING PERSONS** | **NAMES OF REPORTING PERSONS** |
| **1** | TTWFGP LLC  | TTWFGP LLC  |
| **1** | TTWFGP LLC  | TTWFGP LLC  |
| **2** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** |
| **2** | (a) ☒ | (a) ☒ |
| **2** | (b) ☐ | (b) ☐ |
| **3** | **SEC USE ONLY** | **SEC USE ONLY** |
| **3** |  |  |
| **3** |  |  |
| **4** | **CITIZENSHIP OR PLACE OF ORGANIZATION** | **CITIZENSHIP OR PLACE OF ORGANIZATION** |
| **4** | Delaware  | Delaware  |
| **4** | Delaware  | Delaware  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | **SOLE VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 1395000  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 1395000  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | **SHARED VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 92010554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 92010554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **SOLE DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | 1395000  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | 1395000  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **SHARED DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **92010554**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **92010554**  |
| **9** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** |
| **9** | **93405554**  | **93405554**  |
| **9** | **93405554**  | **93405554**  |
| **10** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** |
| **10** | ☐ | ☐ |
| **10** | ☐ | ☐ |
| **11** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** |
| **11** | 73.3% (1)  | 73.3% (1)  |
| **11** | 73.3% (1)  | 73.3% (1)  |
| **12** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** |
| **12** | **OO**  | **OO**  |
| **12** | **OO**  | **OO**  |

---

(1) Based upon 127,381,725 shares of the Issuer's Common Stock outstanding as of December 31, 2022.

------

---

| | |
|:---|:---|
| **CUSIP No. 960413102** | **13G** |

---

---

| | | |
|:---|:---|:---|
| **1** | **NAMES OF REPORTING PERSONS** | **NAMES OF REPORTING PERSONS** |
| **1** | James Chao  | James Chao  |
| **1** | James Chao  | James Chao  |
| **2** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** |
| **2** | (a) ☒ | (a) ☒ |
| **2** | (b) ☐ | (b) ☐ |
| **3** | **SEC USE ONLY** | **SEC USE ONLY** |
| **3** |  |  |
| **3** |  |  |
| **4** | **CITIZENSHIP OR PLACE OF ORGANIZATION** | **CITIZENSHIP OR PLACE OF ORGANIZATION** |
| **4** | United States  | United States  |
| **4** | United States  | United States  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | **SOLE VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 466709 (1)  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 466709 (1)  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | **SHARED VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 93405554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 93405554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **SOLE DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **466709 (1)**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **466709 (1)**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **SHARED DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **93405554**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **93405554**  |
| **9** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** |
| **9** | **93872263 (1)**  | **93872263 (1)**  |
| **9** | **93872263 (1)**  | **93872263 (1)**  |
| **10** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** |
| **10** | ☒ | ☒ |
| **10** | ☒ | ☒ |
| **11** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** |
| **11** | 73.5% (1) (2)  | 73.5% (1) (2)  |
| **11** | 73.5% (1) (2)  | 73.5% (1) (2)  |
| **12** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** |
| **12** | IN  | IN  |
| **12** | IN  | IN  |

---

(1) Includes: (i) 86,755 shares of the Issuer's Common Stock of which James Chao is the owner, (ii) 342,860 shares of Issuer's Common Stock that James Chao
 has the right to obtain, within 60 days of December 31, 2022, upon the conversion of 294,829 vested Stock Options and 48,031 unvested Stock Options that will vest within 60 days of December 31, 2022, at a ratio of one share of Common
 Stock for each Stock Option, (iii) 18,519 unvested Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's Common Stock, that will vest in favor of James Chao within 60 days of
 December 31, 2022, and (iv) 18,575 unvested Performance Stock Units ("PSUs"), each of which represents one share of the Issuer's Common Stock, that will vest in favor of James Chao within 60 days of December 31, 2022. The foregoing number
 of PSUs reflects the target number of PSUs issuable to James Chao pursuant to a February 2020 Performance Stock Unit Award and is subject to adjustment pending final determination of the Issuer's compensation committee.

(2) Based upon 127,381,725 shares of Issuer's Common Stock outstanding as of December 31, 2022, together with the 379,954 shares of Common Stock that, as
 of December 31, 2022, James Chao had the right to obtain, within 60 days, upon the conversion of (i) 342,860 Stock Options of which he is the owner or that will vest and be exercisable within 60 days of December 31, 2022, (ii) 18,519
 unvested RSUs that will vest in favor of James Chao within 60 days of December 31, 2022, and (iii) 18,575 unvested PSUs that will vest in favor of James Chao within 60 days of December 31, 2022.

------

---

| | |
|:---|:---|
| **CUSIP No. 960413102** | **13G** |

---

---

| | | |
|:---|:---|:---|
| **1** | **NAMES OF REPORTING PERSONS** | **NAMES OF REPORTING PERSONS** |
| **1** | Dorothy C. Jenkins  | Dorothy C. Jenkins  |
| **1** | Dorothy C. Jenkins  | Dorothy C. Jenkins  |
| **2** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** |
| **2** | (a) ☒ | (a) ☒ |
| **2** | (b) ☐ | (b) ☐ |
| **3** | **SEC USE ONLY** | **SEC USE ONLY** |
| **3** |  |  |
| **3** |  |  |
| **4** | **CITIZENSHIP OR PLACE OF ORGANIZATION** | **CITIZENSHIP OR PLACE OF ORGANIZATION** |
| **4** | United States  | United States  |
| **4** | United States  | United States  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | **SOLE VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 73778  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 73778  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | **SHARED VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 93405554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 93405554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **SOLE DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **73778**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **73778**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **SHARED DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **93405554**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **93405554**  |
| **9** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** |
| **9** | 93479332 (1)  | 93479332 (1)  |
| **9** | 93479332 (1)  | 93479332 (1)  |
| **10** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** |
| **10** | ☒ | ☒ |
| **10** | ☒ | ☒ |
| **11** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** |
| **11** | 73.4% (1)  | 73.4% (1)  |
| **11** | 73.4% (1)  | 73.4% (1)  |
| **12** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** |
| **12** | IN  | IN  |
| **12** | IN  | IN  |

---

(1) Based upon 127,381,725 shares of Issuer's Common Stock outstanding as of December 31, 2022.

------

---

| | |
|:---|:---|
| **CUSIP No. 960413102** | **13G** |

---

---

| | | |
|:---|:---|:---|
| **1** | **NAMES OF REPORTING PERSONS** | **NAMES OF REPORTING PERSONS** |
| **1** | Albert Chao  | Albert Chao  |
| **1** | Albert Chao  | Albert Chao  |
| **2** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** | **CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** |
| **2** | (a) ☒ | (a) ☒ |
| **2** | (b) ☐ | (b) ☐ |
| **3** | **SEC USE ONLY** | **SEC USE ONLY** |
| **3** |  |  |
| **3** |  |  |
| **4** | **CITIZENSHIP OR PLACE OF ORGANIZATION** | **CITIZENSHIP OR PLACE OF ORGANIZATION** |
| **4** | United States  | United States  |
| **4** | United States  | United States  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | **SOLE VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 1058081 (1)  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **5** | 1058081 (1)  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | **SHARED VOTING POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 93405554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **6** | 93405554  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **SOLE DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **1058081 (1)**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **7** | **1058081 (1)**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **SHARED DISPOSITIVE POWER** |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **93405554**  |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **8** | **93405554**  |
| **9** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** | **AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON** |
| **9** | 94463635 (1)  | 94463635 (1)  |
| **9** | 94463635 (1)  | 94463635 (1)  |
| **10** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** | **CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)** |
| **10** | ☒ | ☒ |
| **10** | ☒ | ☒ |
| **11** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** | **PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)** |
| **11** | 73.8% (1) (2)  | 73.8% (1) (2)  |
| **11** | 73.8% (1) (2)  | 73.8% (1) (2)  |
| **12** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** | **TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)** |
| **12** | **IN**  | **IN**  |
| **12** | **IN**  | **IN**  |

---

(1) Includes: (i) 472,983 shares of the Issuer's Common Stock of which Albert Chao is the owner, (ii) 532,924 shares of Issuer's Common Stock that Albert
 Chao has the right to obtain, within 60 days of December 31, 2022, upon the conversion of 454,246 vested Stock Options and 78,678 unvested Stock Options that will vest within 60 days of December 31, 2022, at a ratio of one share of
 Common Stock for each Stock Option, (iii) 26,048 unvested RSUs that will vest in favor of Albert Chao within 60 days of December 31, 2022, and (iv) 26,126 unvested PSUs, each of which represents one share of the Issuer's Common Stock,
 that will vest in favor of Albert Chao within 60 days of December 31, 2022. The foregoing number of PSUs reflects the target number of PSUs issuable to Albert Chao pursuant to a February 2020 Performance Stock Unit Award and is subject
 to adjustment pending final determination of the Issuer's compensation committee.

(2) Based upon 127,381,725 shares of Issuer's Common Stock outstanding as of December 31, 2022, together with 585,098 shares of Common Stock that, as of
 December 31, 2022, Albert Chao had the right to obtain, within 60 days, upon the conversion of (i) 532,924 Stock Options of which he is the owner or that will vest and be exercisable within 60 days of December 31, 2022, (ii) 26,048
 unvested RSUs that will vest in favor of Albert Chao within 60 days of December 31, 2022, and (iii) 26,126 unvested PSUs that will vest in favor of Albert Chao within 60 days of December 31, 2022.

------

**Item 1(a). Name of Issuer:

Westlake Corporation

#### &nbsp;&nbsp;&nbsp;&nbsp; <br>
Item 1(b). Address of Issuer's Principal Executive Offices:

2801 Post Oak Boulevard, Suite 600

Houston, Texas 77056

Item 2(a). Name of Person Filing:

This Amendment No. 18 to Schedule 13G is being filed by and on behalf of the following persons (the "<u>Reporting Persons</u>")\*:

(i) TTWF LP ("TTWF");

(ii) TTWFGP LLC ("TTWFGP");

(iii) James Chao;

(iv) Dorothy C. Jenkins; and

(v) Albert Chao

\* Attached as Exhibit A is a copy of an agreement among the Reporting Persons that this Schedule 13G is being filed on behalf of each of them.

Item 2(b). Address of Principal Business Office or, if none, Residence:

The business address of each of the Reporting Persons is c/o Westlake Corporation, 2801 Post Oak Boulevard, Suite 600, Houston, Texas, 77056.

Item 2(c). Citizenship:

TTWF is a Delaware limited partnership. TTWFGP is a Delaware limited liability company. James Chao is a citizen of the United States. Dorothy Jenkins is a citizen of the United States. Albert Chao is a citizen of the United States.

Item 2(d). Title of Class of Securities:

Common stock, par value $0.01 per share.

Item 2(e). CUSIP Number:

960413102**

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**Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:

#### <br>
Not applicable.

Item 4. Ownership:

TTWF is the owner of 92,010,554 shares of Common Stock of Westlake Corporation. TTWFGP is the owner of an additional 1,395,000 shares of Common Stock of Westlake Corporation and also serves as the General Partner of TTWF and may be deemed to share beneficial ownership of the 92,010,554 shares of Common Stock of which TTWF is the owner.

Two trusts held for the benefit of the members of the Chao family, including James Chao, Dorothy C. Jenkins and Albert Chao, are the managers of TTWFGP, which is the general partner of TTWF. The limited partners of TTWF are five trusts held principally for the benefit of the members of the Chao family, including James Chao, Dorothy C. Jenkins and Albert Chao, and two corporations owned, directly or indirectly, by certain of these trusts and by other entities owned by the Chao family, including James Chao, Dorothy C. Jenkins and Albert Chao. The Reporting Persons share voting and dispositive power with respect to the shares of which TTWF is the owner and the shares of which TTWFGP is the owner. James Chao, Dorothy C. Jenkins and Albert Chao disclaim beneficial ownership of the 92,010,554 shares held by TTWF and the 1,395,000 shares owned by TTWFGP except to the extent of their respective pecuniary interests therein.

James Chao is the owner of 86,755 shares of Common Stock, and 294,829 vested Stock Options, as well as 48,031 unvested Stock Options, 18,519 unvested RSUs, and 18,575 unvested PSUs that will vest in favor of James Chao within 60 days of December 31, 2022. The 294,829 vested Stock Options, along with the 48,031 unvested Stock Options that will vest in favor of James Chao within 60 days of December 31, 2022, are each convertible within 60 days of December 31, 2022, at a ratio of one Stock Option per share of Common Stock. The 18,519 unvested RSUs and the 18,575 unvested PSUs that will vest in favor of James Chao within 60 days of December 31, 2022, each represent a contingent right to receive one shares of the issuer's Common Stock within 60 days of December 31, 2022. The foregoing number of PSUs reflects the target number of PSUs issuable to James Chao pursuant to a February 2020 Performance Stock Unit Award and is subject to adjustment pending final determination of the Issuer's compensation committee. The shares of Common Stock, vested and unvested Stock Options, and unvested RSUs and PSUs of which James Chao is the owner, together with the 92,010,554 shares of Common Stock of which TTWF is the owner, and the 1,395,000 shares of Common Stock of which TTWFGP is the owner add up to the number of shares listed in Item 9 of James Chao's respective cover page. James Chao disclaims beneficial ownership of the shares of Common Stock over which Albert Chao and Dorothy C. Jenkins have sole voting and dispositive power. James Chao also disclaims beneficial ownership over the 92,010,554 shares held by TTWF and the 1,395,000 shares held by TTWFGP, except to the extent of his pecuniary interest therein.

Dorothy C. Jenkins is the owner of 73,778 shares of Common Stock, which together with the 92,010,554 shares of Common Stock of which TTWF is the owner and the 1,395,000 shares of Common Stock of which TTWFGP is the owner, add up to the number of shares listed in Item 9 of Dorothy C. Jenkins' respective cover page. Dorothy C. Jenkins disclaims beneficial ownership of the shares of Common Stock over which Albert Chao and James Chao have sole voting and dispositive power. Dorothy C. Jenkins also disclaims beneficial ownership over the 92,010,554 shares held by TTWF and the 1,395,000 shares held by TTWFGP, except to the extent of her pecuniary interest therein.

Albert Chao is the owner of 472,983 shares of Common Stock, and 454,246 vested Stock Options, as well as 78,678 unvested Stock Options, 26,048 unvested RSUs, and 26,126 unvested PSUs that will vest in favor of Albert Chao within 60 days of December 31, 2022. The 454,246 vested Stock Options, along with the 78,678 unvested Stock Options that will vest in favor of Albert Chao within 60 days of December 31, 2022, are each convertible within 60 days of December 31, 2022, at a ratio of one Stock Option per share of Common Stock. The 26,048 unvested RSUs and the 26,126 unvested PSUs that will vest in favor of Albert Chao within 60 days of December 31, 2022 each represent a contingent right to receive one shares of the issuer's Common Stock within 60 days of December 31, 2022. The foregoing number of PSUs reflects the target number of PSUs issuable to Albert Chao pursuant to a February 2020 Performance Stock Unit Award and is subject to adjustment pending final determination of the Issuer's compensation committee. The shares of Common Stock, vested and unvested Stock Options, and unvested RSUs and PSUs of which Albert Chao is the owner, together with the 92,010,554 shares of Common Stock of which TTWF is the owner, and the 1,395,000 shares of Common Stock of which TTWFGP is the owner add up to the number of shares listed in Item 9 of Albert Chao's respective cover page. Albert Chao disclaims beneficial ownership of the shares of Common Stock over which James Chao and Dorothy C. Jenkins have sole voting and dispositive power. Albert Chao also disclaims beneficial ownership over the 92,010,554 shares held by TTWF and the 1,395,000 shares held by TTWFGP, except to the extent of his pecuniary interest therein.** 

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**### Item 5. Ownership of Five Percent or Less of a Class:

Not applicable.

### Item 6. Ownership of More Than Five Percent on Behalf of Another Person:

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company:

Not applicable.

Item 8. Identification and Classification of Members of the Group:

See Item 2.

Item 9. Notice of Dissolution of Group:

Not applicable.**

**Item 10. Certification:**

Not applicable.

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#### SIGNATURE PAGE<br>

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.

Dated: January 18, 2023

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| | | |
|:---|:---|:---|
| **TTWF LP** | **TTWF LP** | **TTWF LP** |
| By:  | TTWFGP LLC<br> its General Partner | TTWFGP LLC<br> its General Partner |
| By: | /s/ Albert Chao | /s/ Albert Chao |
|  | Name: | Albert Chao |
|  | Title: | Authorized Representative |
| By: | /s/ James Chao | /s/ James Chao |
|  | Name: | James Chao  |
|  | Title: | Authorized Representative |

---

---

| | | |
|:---|:---|:---|
| **TTWFGP LLC** | **TTWFGP LLC** | **TTWFGP LLC** |
| By: | /s/ Albert Chao | /s/ Albert Chao |
|  | Name: | Albert Chao |
|  | Title: | Authorized Representative |
| By: | /s/ James Chao | /s/ James Chao |
|  | Name: | James Chao  |
|  | Title: | Authorized Representative |

---

---

| | |
|:---|:---|
| **James Chao** | **James Chao** |
| By: | /s/ James Chao |
|  | James Chao  |

---

---

| | |
|:---|:---|
| **Dorothy C. Jenkins** | **Dorothy C. Jenkins** |
| By: | /s/ Dorothy C. Jenkins |
|  | Dorothy C. Jenkins  |

---

---

| | |
|:---|:---|
| **Albert Chao** | **Albert Chao** |
| By: | /s/ Albert Chao |
|  | Albert Chao |

---

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#### EXHIBIT A

#### JOINT FILING AGREEMENT

The undersigned agree that the foregoing Statement of Schedule 13G (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.

Dated: January 18, 2023

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| | | |
|:---|:---|:---|
| **TTWF LP** | **TTWF LP** | **TTWF LP** |
| By:  | TTWFGP LLC<br> its General Partner | TTWFGP LLC<br> its General Partner |
| By: | /s/ Albert Chao | /s/ Albert Chao |
|  | Name: | Albert Chao |
|  | Title: | Authorized Representative |
| By: | /s/ James Chao | /s/ James Chao |
|  | Name: | James Chao  |
|  | Title: | Authorized Representative |

---

---

| | | |
|:---|:---|:---|
| **TTWFGP LLC** | **TTWFGP LLC** | **TTWFGP LLC** |
| By: | /s/ Albert Chao | /s/ Albert Chao |
|  | Name: | Albert Chao |
|  | Title: | Authorized Representative |
| By: | /s/ James Chao | /s/ James Chao |
|  | Name: | James Chao  |
|  | Title: | Authorized Representative |

---

---

| | |
|:---|:---|
| **James Chao** | **James Chao** |
| By: | /s/ James Chao |
|  | James Chao  |

---

---

| | |
|:---|:---|
| **Dorothy C. Jenkins** | **Dorothy C. Jenkins** |
| By: | /s/ Dorothy C. Jenkins |
|  | Dorothy C. Jenkins  |

---

---

| | |
|:---|:---|
| **Albert Chao** | **Albert Chao** |
| By: | /s/ Albert Chao |
|  | Albert Chao |

---

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