On October 21, 2024, Daniel W. Rabun joined the Board of Directors for HMH as the Chairman of the Board. Further, Mr. Daniel W. Rabun has served on the Borr Drilling Board since April 2023 and is part of the Compensation Committee. He joined Ensco plc in 2006, becoming CEO in 2007 and Chairman in 2007, retiring in 2014 and 2015, respectively. Since 2015, he has been a Director at Golar LNG Ltd, serving as Chairman from 2015 to 2017, and is involved in several committees. He has been a non-executive director at ChampionX Corporation since 2018, currently serving as Chairman and on various committees. Prior to joining Ensco plc, Mr. Rabun was a partner at Baker & McKenzie LLP where he had practiced law since 1986. He has been a US Certified Public Accountant since 1976 and a member of the Texas Bar since 1983. Mr. Rabun served on APA Corporation’s Board from 2015 to 2024 and holds a Bachelor of Business Administration Degree in Accounting from the University of Houston and a Juris Doctorate Degree from Southern Methodist University.