CenterPoint Energy Announces 2023 Annual Meeting Vote Results

Advisory Vote on the Frequency of Future Shareholder Advisory Votes on Executive Compensation (Item 4) For the advisory vote on the frequency of future shareholder advisory votes on CenterPoint Energy's executive compensation, votes were cast in favor of holding future advisory votes every year, every two years or every three years as follows: 1 Year 2 Years 3 Years Abstain Broker Non-Votes 523,951,870 753,096 5,225,295 862,920 31,464,507

Election of Directors (Item 1) The following nominees for director were elected to serve one-year terms expiring at the 2024 annual meeting of shareholders, with the vote totals as set forth in the table below: Nominee For Against Abstentions Broker Non-Votes Wendy Montoya Cloonan 506,052,463 24,096,813 643,905 31,464,507 Earl M. Cummings 444,588,756 85,539,762 664,663 31,464,507 Christopher H. Franklin 512,052,393 18,072,297 668,491 31,464,507 David J. Lesar 525,205,238 4,673,836 914,107 31,464,507 Raquelle W. Lewis 509,731,867 20,386,518 674,796 31,464,507 Martin H. Nesbitt 522,286,407 7,822,635 684,139 31,464,507 Theodore F. Pound 472,040,486 58,066,320 686,375 31,464,507 Phillip R. Smith 510,834,790 19,298,532 659,859 31,464,507 Barry T. Smitherman 520,145,122 9,980,525 667,534 31,464,507

Ratification of Appointment of Independent Registered Public Accounting Firm (Item 2) The appointment of Deloitte & Touche LLP as the independent registered public accounting firm for CenterPoint Energy for 2023 was ratified, with the vote totals as set forth in the table below: For Against Abstentions Broker Non-Votes 534,201,899 27,347,512 708,277 —

Shareholder Proposal Relating to CenterPoint Energy's Disclosure of Scope 3 Emissions and Setting Scope 3 Emissions Targets (Item 5) The shareholder proposal relating to CenterPoint Energy's disclosure of Scope 3 emissions and setting Scope 3 emissions targets was not approved, with the vote totals as set forth in the table below: For Against Abstentions Broker Non-Votes 96,738,809 431,118,342 2,936,030 31,464,507

Advisory Vote on Executive Compensation (Item 3) The advisory resolution on executive compensation was approved, with the vote totals as set forth in the table below: For Against Abstentions Broker Non-Votes 437,261,276 92,309,036 1,222,869 31,464,507