On January 4, 2019, Mr. Scott M. Sperling ceased to be the Executive Chairman and Mr. Kent R. Weldon ceased to be the Vice Chairman and director of Federal Street Acquisition Corp. Additionally on January 4, 2019, Messrs. Michael A. Bell, Gary L. Gottlieb, Henry A. McKinnell and Paul M. Montrone ceased to be directors of FSAC and Messrs.

Arthur G. McAleer and Charles P. Holden and Ms. Shari H. Wolkon ceased to be the President, Chief Financial Officer and General Counsel and Secretary of FSAC, respectively.