MT. EATON

Declared quarterly distribution of $0.4714 per unit; 29 th consecutive quarterly distribution Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") today reported net income attributable to the Partnership in the third quarter of 2021 of $12.8 million, or $0.36 per limited partner unit, a decrease of $5.7 million compared to third quarter 2020 net income attributable to the Partnership of $18.5 million. The decrease in net income was a result of reduced sales to Westlake attributable to a buyer deficiency fee from Westlake Chemical Corporation (“Westlake Chemical”) that was recognized in the third quarter of 2020 in connection with Hurricanes Laura and Delta as well as the commencement of the planned turnaround of Westlake Chemical OpCo LP's ("OpCo") Petro 2 facility and associated planned production outage for the turnaround of Petro 2. Cash flows from operating activities in the third quarter of 2021 were $99.5 million, a decrease of $17.7 million compared to third quarter