On May 24, 2018, the Board of Directors of Infrastructure and Energy Alternatives, Inc. determined that Terence Montgomery, currently a member of the Board of Directors, is independent within the applicable rules of the Nasdaq Stock Market and Section 10A of the Securities Exchange Act of 1934 to serve on the Audit Committee. Mr. Montgomery will replace Philip Kassin as the Chair of the Audit Committee. Mr. Kassin will remain on the Audit Committee. Mr. Montgomery has over 30 years of experience in various leadership roles in energy and currently serves in a similar role for Remedial Construction Services, LP. (RECON). He also previously served as Director and Audit Committee Chairman of RSH Energy Holdings, LLC, Shermco Industries, Inc. and Integrated Pipeline Services, Inc., and Director of Goodcents Holdings, Inc.