On December 12, 2023, Valaris Limited (the ?Company?) announced that Melissa Barron will assume the role of principal accounting officer effective as of March 1, 2024. Ms. Barron will succeed Colleen Grable, who will continue with the Company as Vice President ? Chief Human Resources Officer.

Ms. Barron, age 43, joined the Company in August 2022 as Director. Prior to joining the Company, Ms. Barron served as Director of Financial Reporting and Technical Accounting of OraSure Technologies Inc. Between April 2010 and February 2022, Ms. Barron served as the Assistant Corporate Controller, Director of Accounting and Financial Reporting Accounting Manager of Diamond Offshore Drilling Inc. Ms. Barron has also spent seven years in the audit practice at Deloitte LLP. Ms. Barron is a Certified Public Accountant and holds Bachelor of Science and Masters in Accounting degrees from Texas A&M University.