Gwendolyn Mizell has served as a Director of the Company since February 2021. She began her career with Ameren Corporation in 2015 as Director of Diversity and Inclusion and has been promoted through various levels of leadership in Corporate Social Responsibility, Sustainability, Electrification and Innovation. Today, Ms. Mizell is the Senior Vice President, Chief Sustainability, Diversity and Philanthropy Officer of Ameren and she is a member of the Ameren Executive Leadership Team. As the Senior Vice President, Chief Sustainability, Diversity and Philanthropy Officer, Ms. Mizell is responsible for developing and executing sustainability strategy across the company, aligning Diversity Equity and Inclusion and Corporate Philanthropy for maximum community, customer and social impact and regularly reports to the Ameren Board of Directors and its committees. She chairs the Sustainability Executive Steering Committee, a cross-functional team of company leaders, designed to ensure alignment between Sustainability and corporate strategy. Prior to joining Ameren, Ms. Mizell was President and Chief Executive Officer of GSM Development LLC, a business services firm supporting utilities across the US. Over her career, she has held positions of increasing responsibility with Westinghouse, Siemens, ABB, Calpine and KEMA Corporation. While at Westinghouse, she was responsible for air, water and acoustic compliance for power stations with modified environmental controls systems. Ms. Mizell's qualifications to serve on the Board of Directors include her experience in strategy development, ESG, corporate social responsibility, diversity, equity and inclusion and power operations. Ms. Mizell serves on several industry boards (EEI Sustainability Committee (Co-chair) and AABE (Sustainability Committee Chair)) and Community/Non-Profits boards (Cardinal Ritter College Prep, The Scholarship Foundation, St. Louis County Workforce Investment Board and Archway (MO) Chapter of the Links, Inc.). Savoy Magazine recognized Ms. Mizell as one of 2022's Most Influential Black Executives in Corporate America.