Commonwealth Bank of Australia (CBA) announced the resignation of Ms. Carmel Mulhern as a Company Secretary of CBA with effect from 31 August 2023. Ms. Karen O'Flynn has been appointed as a Company Secretary of CBA with effect from 1 September 2023. Ms. Vicki Clarkson remains a Company Secretary of CBA and the person responsible for communications with ASX under listing rule 12.6.