VOTE BY INTERNET - www.proxyvote.com Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 P.M. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form. SOUTHEASTERN BANK FINANCIAL CORPORATION 3530 WHEELER ROAD AUGUSTA, GA 30909 ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS If you would like to reduce the costs incurred by our company in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To sign up for electronic delivery, please follow the instructions above to vote using the Internet and, when prompted, indicate that you agree to receive or access proxy materials electronically in future years. VOTE BY PHONE - 1-800-690-6903 Use any touch-tone telephone to transmit your voting instructions up until 11:59 P.M. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you call and then follow the instructions. VOTE BY MAIL Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLY THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. The Board of Directors recommends you vote FOR proposals 1, 2 and 3. For 0 Against 0 Abstain 0 (1) Proposal I: To approve the Agreement and Plan of Merger, dated as of June 16, 2016, by and between Southeastern Bank Financial Corporation (Southeastern) and South State Corporation (South State), pursuant to which Southeastern will merge with and into South State, as more fully described in the joint proxy statement/prospectus. (2) Proposal II: To adjourn the Southeastern special meeting, if necessary or appropriate, to solicit additional proxies in favor of Proposal I. NOTE: This proxy will be voted in accordance with the direction of the undersigned as marked. If no direction is given, this proxy will be voted FOR the merger proposal as described in Proposal I, FOR the adjournment proposal as described in Proposal II, and FOR the merger-related compensation proposal as described in Proposal III. 0 0 0 0 0 0 (3) Proposal III: To approve, on an advisory (non-binding) basis, the compensation that certain executive officers of Southeastern may receive in connection with the merger pursuant to existing agreements or arrangements with Southeastern. Please sign exactly as name appears hereon. If shares are held jointly each shareholder should sign. Agents, executors, administrators, guardians, trustees, etc. should use full title. If the shareholder is a corporation, please sign full corporate name by an authorized officer. Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date 0000299998_1 R1.0.1.25
