CSG Systems International, Inc. announced that On February 17, 2023, Frank V. Sica, a member of the Board of Directors of the company informed the Company of his intention to retire at the conclusion of the 2023 Annual Meeting of Shareholders in May 2023. Mr. Sica has been a member of the Board since 1994 and currently serves on the Compensation Committee. Following the departure of Mr. Sica, the number of directors on the Board will be decreased from eleven to ten.

Mr. Sica's decision to retire did not result from any disagreement with the Company on any matter related to the Company's operations, policies, or practices.