Core Points - Ameren Missouri is advancing its generation investment plan by filing an application for the construction of an 800-megawatt natural gas energy center and a large-scale battery storage facility in Jefferson County, Missouri [1][3] - The Big Hollow Energy Center aims to enhance energy reliability and meet increased energy demands while ensuring grid resiliency [1][2] - The project is expected to create significant investment and job opportunities in the community, with the energy center projected to be operational by 2028 [3][4] Investment and Infrastructure - The Big Hollow Energy Center will feature a 400-megawatt lithium-ion battery installation, which can provide backup power during peak energy needs and improve overall grid reliability [4][5] - Ameren Missouri plans to accelerate its battery storage capacity to a total of 1,000 megawatts by 2030 and 1,800 megawatts by 2042 [4] - The natural gas and battery storage facilities will operate independently but will utilize existing infrastructure, reducing construction time and costs [5][6] Community Impact - The project is expected to support local economic development, including contributions to the Jefferson R-VII School District and local first responders [7] - Community leaders express strong support for the Big Hollow Energy Center, viewing it as a commitment to the future of Jefferson County [7][8] - The closure of the Rush Island Energy Center in October 2024 has been addressed by Ameren Missouri, ensuring continued partnership with the community [8]

ARCHROCK, INC. February 2024 Forward-Looking Statements All statements in this presentation (and oral statements made regarding the subjects of this presentation) other than historical facts are forward–looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. These forward–looking statements rely on a number of assumptions concerning future events and are subject to a number of uncertainties and factors that could cause actual results to differ materially from ...