65 ADVANCED NUCLEAR | SUPPLIER SOUTHERN NUCLEAR DEVELOPMENT, LLC Southern Nuclear Development, a subsidiary of Southern Nuclear Operating Company, pursues partnerships across the industry to drive the success of advanced nuclear technologies to be deployed as we move toward low- to no- carbon operations by 2050 — benefiting Southern Company customers for years to come. Southern Nuclear Development leverages decades of experience and research in nuclear operations, engineering, licensing and development to help advanced nuclear developers execute each phase of their strategy, from concept to commercial operation. Location: Birmingham, AL Founded: N/A Principal/CEO: Stephen E. Kuczynski Major Customers: N/A Federal Engagement: DOE, NRC, EPA, FEMA Preferred Point of Contact: Ben Carmichael / bmcarmic@southernco.com / 205-992-5944 www.southernnuclear.com