Koch Enterprises Inc.

Robert L. Koch II, age 70, has been a director of SIGECO, SIGCORP, or the Company since 1986. As Chair of the Nominating and Corporate Governance Committee of the Company s Board, Mr. Koch is also the Lead director among the non-employee Board members. Mr. Koch is President and Chief Executive Officer of Koch Enterprises, Inc., a holding company comprised of worldwide subsidiaries that produce aluminum die castings, industrial painting systems, structural adhesives, recycled non-ferrous metals, and distribute heating and air conditioning equipment and hydraulic and pneumatic equipment and install building security systems. Mr. Koch is also a director of Fifth Third Bancorp and serves on the Board of Trustees of the University of Evansville.

Susan also serves as Secretary and Treasurer for the Board of Directors of Koch Enterprises, Inc. and Comfort Financial. She is the Assistant Secretary and Assistant Treasurer for George Koch Sons, Assistant Treasurer for Gibbs Die Casting and Secretary for Uniseal and Brake Supply. Susan is a Director of Koch Air and the Koch Foundation. Susan is a Certified Public Accountant, and graduated with honors from Purdue University with a BSIM. Professional associations in which Susan participates include: Institute of Management Accountants, Indiana Society of CPAs and AICPA. Currently Susan serves as Director and Treasurer of the YMCA and Director of the USI Foundation. Past community activities consist of Director and Secretary of United Way, Chairman of the Planning Committee, Director of Southwestern Indiana Easter Seal Society, Director and Treasurer of the Volunteer Action Center, and Director and Treasurer of Family and Children's Service and Director and Treasurer of Youth Resources of SW Indiana.

Kremer serves on the University of Evansville's Board of Trustees and Fifth Third Bank, Indiana's Board of Directors. He is also active raising money for the area's Catholic High School's capital campaign. Kremer holds a Bachelor of Science from the University of Evansville and a MBA from the University of Evansville. Prior to joining Emerson Electric Co, Kremer was with Whirlpool Corporation for 27 years.