Westlake Chemical Partners LP Annual Report - A Clear Look at Their Year

This summary offers a clear, investor-friendly overview of Westlake Chemical Partners LP's performance for the fiscal year ended December 31, 2025. We'll explore what happened, what it means, and what's ahead for the company. Westlake Chemical Partners' common units trade on the New York Stock Exchange under the ticker symbol WLKP. As of February 25, 2026, approximately 35.2 million common units were outstanding, representing a total market capitalization of roughly $528 million (based on a recent unit price of $15.00).

Business Overview

Westlake Chemical Partners LP primarily produces and sells ethylene, a fundamental building block for various plastics and chemicals like polyethylene and PVC. The company operates on a fee-based model: it typically sells its entire ethylene output to its parent company, Westlake Chemical Corporation (WLK), through long-term agreements. This structure provides stable, predictable cash flows, largely insulating the partnership from the direct volatility of commodity prices for ethylene and its raw material, feedstock (such as ethane).

Financial Performance

Westlake Chemical Partners delivered a solid financial performance in 2025:

• Revenue: The partnership generated $1.2 billion in total sales revenue, a 5% increase from the previous year. Stable demand from its parent company and efficient operations primarily drove this growth.
• Net Income: It reported a net income of $180 million, an 8% improvement over 2024, reflecting strong operational control and favorable contract terms.
• Adjusted EBITDA: The company reached $250 million, demonstrating healthy profitability and strong cash-generating capability.
• Distributions: The partnership maintained consistent quarterly cash distributions to unitholders, supported by its stable cash flow generation. Total distributions for 2025 amounted to $1.40 per common unit, offering an attractive yield for investors.

Key Highlights:

• Operational Success: The partnership successfully completed a key plant efficiency upgrade at its Lake Charles facility. This boosted production capacity by 3% and improved energy consumption, positively contributing to both revenue and profitability.
• Market Headwinds: The partnership faced slightly elevated feedstock costs in the latter half of the year, which pressured margins. However, its fee-based model mitigated the overall impact. Global economic uncertainties also created a cautious demand environment.

Risk Factors

While the fee-based model provides stability, investors should consider these potential risks:

• Customer Concentration: The partnership relies significantly on Westlake Chemical Corporation for nearly all its revenue. Adverse changes in the parent company's financial health, operational stability, or demand for ethylene could directly impact the partnership.
• Operational Risks: Like any industrial operation, the partnership faces inherent risks of plant outages, equipment failures, or natural disasters that could disrupt production.
• Regulatory and Environmental: Changes in environmental regulations or increased compliance costs could affect operations and profitability.
• Interest Rate Risk: As the partnership carries debt, significant increases in interest rates could impact financing costs, though much of its debt is fixed-rate.

Management's Discussion and Analysis (MD&A) Highlights

Management's Discussion and Analysis (MD&A) offers a narrative explanation of the partnership's financial condition and operational results.

2025 Performance Drivers: As detailed in the "Financial Performance" section, stable fee-based contractual arrangements with Westlake Chemical Corporation primarily drove the partnership's 2025 performance. This model largely insulates the partnership from direct commodity price volatility, ensuring predictable revenue streams. Operational efficiencies, including the successful Lake Charles facility upgrade, positively contributed to both production capacity and energy consumption, enhancing profitability. Although feedstock costs slightly increased in the latter half of the year, the partnership's contractual structure mitigated the direct impact on margins.

Liquidity and Capital Resources: The partnership maintains a strong liquidity position, supported by its cash balance and access to revolving credit facilities, as outlined in the "Financial Health" section. Management's capital allocation strategy prioritizes maintaining asset integrity through maintenance capital expenditures, funding modest growth projects, and consistently returning capital to unitholders via distributions. The partnership's debt management strategy focuses on maintaining a manageable leverage profile to ensure financial flexibility.

Operational Strategy: The partnership reported no significant changes in executive leadership or overall strategic direction for 2025. It continues to focus on optimizing existing assets, maintaining operational excellence, and generating stable cash flows to support its distribution policy. This includes ongoing efforts to enhance efficiency and reliability across its operations. The Long-Term Incentive Plan, which includes Phantom Share Units, aligns management and key employee interests with unitholder value by tying compensation to the partnership's performance and unit price.

Critical Accounting Policies: Preparing the partnership's financial statements requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, revenues and expenses, and related disclosures. Key areas involving significant judgment typically include revenue recognition, depreciation of property, plant and equipment, and assessments of asset impairment. Management believes these estimates are reasonable and consistently applied.

Financial Health

Westlake Chemical Partners LP maintains a robust financial position:

• Cash Position: The partnership ended the year with $75 million in cash and cash equivalents.
• Debt: Total long-term debt stood at $600 million, primarily comprising senior notes. Its debt-to-Adjusted EBITDA ratio of 2.4x indicates a manageable leverage level for the industry.
• Liquidity: The company accesses revolving credit facilities – flexible lines of credit – including the "OpCo Revolver" with $150 million available and the "MLP Revolver" with $50 million available. These facilities provide ample short-term liquidity to manage operational needs and capital expenditures.

Future Outlook

Management anticipates a stable outlook for 2026, projecting modest revenue growth of 3-4%. This growth will be driven by continued demand from Westlake Chemical Corporation and ongoing operational efficiencies. The partnership expects to generate strong cash flows, supporting its consistent distribution policy. It plans capital expenditures of approximately $40 million for maintenance and minor growth projects to ensure asset integrity and efficiency. The company will continue to monitor global demand trends for polyethylene and PVC, alongside the evolving landscape of sustainability and circular economy initiatives, which could influence long-term market dynamics for ethylene.

Competitive Position

Westlake Chemical Partners operates in a highly competitive global ethylene market. However, its competitive advantages include:

• Strategic Relationship: An integrated relationship with Westlake Chemical Corporation provides a stable, long-term customer base and benefits from the parent company's broader supply chain and market reach.
• Modern Facilities: The partnership's facilities are generally modern and efficient, contributing to competitive operating costs.
• Fee-Based Model: This structure largely insulates the partnership from the direct commodity price volatility that often affects other chemical producers.