On September 28, 2021, Aon plc, Aon Corporation, Aon UK Limited, Aon Global Holdings plc and Aon Global Limited entered into a Credit Agreement with Citibank, N.A., as administrative agent, the lenders party thereto (collectively, the Revolving Lenders"), HSBC Bank USA, National Association, and Morgan Stanley Senior Funding Inc., as syndication agents, and Citibank, HSBC Securities (USA) Inc., and Morgan Stanley Senior Funding Inc., as joint lead arrangers and joint bookrunners, pursuant to which, subject to the conditions set forth in the Revolving Credit Agreement, the Revolving Lenders committed to provide a $1,000,000,000 unsecured revolving credit facility. The Revolving Credit Agreement replaces Parent's $900,000,000 revolving loan credit facility dated as of February 2, 2015, which was scheduled to mature on February 2, 2022.