Additional Information and Where to Find It This communication may be deemed to be solicitation material in respect of the proposed transaction between Delek US and Alon. In connection with the proposed transaction, Delek US and/or Alon may file one or more proxy statements, registration statements, proxy statement/prospectuses or other documents with the SEC. This communication is not a substitute for the proxy statement, registration statement, proxy statement/prospectus or any other documents that Delek US or Alon may file with the SEC or send to stockholders in connection with the proposed transaction. STOCKHOLDERS OF DELEK US AND ALON ARE URGED TO READ ALL RELEVANT DOCUMENTS FILED WITH THE SEC, INCLUDING THE PROXY STATEMENT(S), REGISTRATION STATEMENT(S) AND/OR PROXY STATEMENT/PROSPECTUS, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Any definitive proxy statement(s) (if and when available) will be mailed to stockholders of Delek US and/or Alon, as applicable.