CMS ENERGY CORPORATION will be hosting a Virtual Shareholder Meeting this year. The meeting will be held on Friday, May 7, 2021 at 10:00 a.m. Eastern Daylight

Saving Time and shareholders will be able to vote online during the meeting. If you would like to attend the virtual meeting and you have your control number, please go to www.virtualshareholdermeeting.com/CMS2021 15 minutes prior to the start of the meeting to log in. If you came through your brokerage firm's website and do not have your control number, you can gain access to the meeting by logging into your brokerage firm's website 15 minutes prior to the meeting start, selecting the shareholder communications mailbox to link through to the meeting and the control number will automatically populate.

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