CONSUMERS ENERGY CO

We have adopted an employee code of ethics, titled “CMS Energy 2024 Code of Conduct and Guide to Ethical Business Behavior” (“Employees’ Code”) that applies to the CEO, Chief Financial Officer (“CFO”) and Chief Accounting Officer (“CAO”), as well as all other officers and employees of CMS and Consumers. CMS and

Consumers have also adopted a Director code of ethics titled “2024 Board of Directors Code of Conduct and Guide to Ethical Business Behavior” (“Directors’ Code”) that applies to the members of the Board. The Governance Committee annually reviews the Codes and recommends changes to the Board, as appropriate. The Employees’ Code is administered by the Chief Compliance Officer, who reports directly to the Audit Committee. The Audit Committee oversees compliance with the Codes. Any alleged violation of the Directors’ Code will be investigated by disinterested members of the Audit Committee, or if none, by disinterested members of the Board. The Governance Committee would recommend appropriate action to the Board in the event a determination is made that a Director violated the Directors’ Code. The Codes and any waivers of, or amendments or exceptions to, a provision of the Employees’ Code that applies to the CEO, CFO, CAO or persons performing similar functions and any waivers of, or exceptions to, a provision of our Directors’ Code will be disclosed on our website at cmsenergy.com/corporate-governance/compliance-and-ethics/default.aspx. No such waivers or exceptions have been granted.