Pursuant to a letter dated October 15, 2018 to the Board of Directors of BankGuam Holding Company Joe T. San Agustin submitted notice of his voluntary resignation, to be effective October 31, 2018, as a member of the company's Board of Directors and all subsidiaries of the company for which he serves as a director, including the Bank of Guam and BG Investment Services Inc. His resignation is not as a result of any disagreement between himself and the Company, its management, Board of Directors or any committee of the Board of Directors.