Financial Data and Key Metrics Changes - Westlake Partners reported a net income of $40 million, or $0.41 per unit, for Q2 2024, benefiting from higher production and sales volume compared to Q2 2023 [4][5] - Consolidated net income, including OpCo's earnings, was $88 million on consolidated net sales of $284 million, with distributable cash flows of $17 million, or $0.49 per unit [7][8] - The partnership's distributable cash flow increased by $2 million compared to Q2 2023, primarily due to higher production and sales volumes [8][9] Business Line Data and Key Metrics Changes - The partnership's performance was positively impacted by OpCo's higher production and sales volumes due to last year's Calvert City turnaround and higher third-party ethylene sales prices and margins [4][8] - The distribution for Q2 2024 was $0.4714 per unit, marking the 40th consecutive quarterly distribution since the IPO in July 2014, with a 71% increase since the original minimum quarterly distribution [9] Market Data and Key Metrics Changes - The company noted improvements in margins on ethylene sales to third parties, attributed to new industry-wide U.S. polyethylene capacity coming online [10] - The overall global macroeconomic environment remains unpredictable, but the ethylene sales agreement provides a predictable fee-based cash flow structure [11] Company Strategy and Development Direction - The company aims to grow distributions through four levers: increasing ownership interest in OpCo, acquiring other qualified income streams, organic growth opportunities, and negotiating a higher fixed margin in the ethylene sales agreement [7] - The management emphasizes a focus on safe operations and environmental stewardship as part of broader sustainability efforts [11] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the stability of cash flows due to the fixed margin ethylene sales agreement, which minimizes market volatility [5][11] - The planned turnaround at the Petro 1 ethylene unit is expected to impact the distribution coverage ratio temporarily, but the costs have been reserved and funded [10] Other Important Information - At the end of Q2 2024, the company had consolidated cash balances totaling $160 million and long-term debt of $400 million [9] - The company has maintained a strong leverage ratio of approximately one times [9] Q&A Session Summary Question: Regarding the turnaround of Petro 1, should we assume approximately 30 days in the third quarter and 30 days in the fourth quarter? - Yes, the planned turnaround is expected to be split approximately half in each quarter, impacting earnings and production temporarily [14] Question: On the spot exposure to rising ethylene cracker margins, were you below the 5% maximum level in the first half of the year? - The company has been selling ethylene in advance due to elevated margins and expects to participate in the elevated ethylene margins for the rest of the year [14][15] Question: Has there been any spalling of MLP equity markets, or is there still interest in that area? - The company is exploring opportunities in the MLP equity markets, maintaining dialogue for potential value-driven opportunities [15]

Earnings Presentation 2Q 2024 1 $744M EBITDA(1) $2.40 $3.0B 2Q 2024 Financial Results Record HIP segment earnings with improving PEM segment profitability $3.2B $313M 36% increase vs. 1Q Net Sales 8% increase vs. 1Q Net Income 80% increase vs. 1Q Net Income Per Share Net Cash Provided by Operating Activities • Jean-Marc Gilson named President and CEO; Albert Chao appointed Executive Chairman • Housing and Infrastructure Products (HIP) reported records in income from operations of $266 million, EBITDA of $33 ...

EXHIBIT 99.1 WESTLAKE CHEMICAL PARTNERS LP Contact—(713) 585-2900 Investors—Steve Bender Media—L. Benjamin Ederington Westlake Chemical Partners LP Announces Second Quarter 2024 Results th • Declared quarterly distribution of $0.4714 per unit; 40 consecutive quarterly distribution HOUSTON--(BUSINESS WIRE)--Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") today reported net income attributable to the Partnership in the second quarter of 2024 of $14.4 million, or $0.41 per limited partner unit, ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Commission File No. 001-36567 Westlake Chemical Partners LP (Exact name of registrant as specified in its charter) Delaware 32-0436529 (State or other jurisdiction of ...

Westlake Chemical Partners LP (NYSE:WLKP) Q1 2024 Earnings Conference Call May 1, 2024 1:00 PM ET Company Participants John Zoeller - Vice President and Treasurer Albert Chao - President and Chief Executive Officer Steve Bender - Executive Vice President and Chief Financial Officer Conference Call Participants Matthew Blair - TPH Salvator Tiano - Bank of America Securities Operator Good afternoon, and thank you for standing by. Welcome to the Westlake Chemical Partners First Quarter 2024 Earnings Conference ...

First quarter 2024 net income attributable to the Partnership of $14.8 million increased by $0.5 million compared to fourth quarter 2023 net income of $14.3 million, in part due to lower selling, general and administrative expenses. First quarter 2024 cash flows from operating activities of $104.6 million decreased by $3.1 million compared to fourth quarter 2023 cash flows from operating activities of $107.7 million due to less favorable working capital changes. First quarter 2024 MLP distributable cash flo ...

HOUSTON--(BUSINESS WIRE)--Westlake Chemical Partners LP (the “Partnership”) (NYSE: WLKP) today provided an update on the availability of the Partnership’s 2023 Investor Tax Packages including Schedule K-1 for its common unitholders. The Partnership’s 2023 K-1 tax packages are now available. The information reported to you on Schedule K-1 is based on tax laws currently in effect for 2023. This information may be subject to change depending on actions taken by Congress and the President. If the Tax Relief fo ...

HOUSTON--(BUSINESS WIRE)--Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") announced that it filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2023 with the Securities and Exchange Commission on February 28, 2024. A copy of this 10-K may be found on the Partnership's website, www.wlkpartners.com, by selecting the "Investor Relations" tab, then "SEC Filings." Unitholders of the Partnership may receive a hard copy of its Annual Report on Form 10-K, including complete a ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Commission File No. 001-36567 Westlake Chemical Partners LP Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule ...

HOUSTON--(BUSINESS WIRE)--Westlake Chemical Partners LP (the “Partnership”) (NYSE: WLKP) today provided an update on the expected availability of the Partnership’s 2023 Investor Tax Packages including Schedule K-1 for its common unitholders. Historically, the Partnership’s Investor Tax Packages have been available by the end of February for the preceding tax year; however, the timing of the availability of Partnership’s 2023 Investor Tax Packages is dependent upon actions of the U.S. Congress and the Biden ...