Archrock, Inc.

Availability of Proxy Materials. Instead of mailing a printed copy of our proxy materials, including this Proxy Statement, form of proxy card and our 2025 Annual Report to Stockholders, we have elected to provide access to such documents on the Internet. Most stockholders will not receive printed copies of the proxy materials unless they request them, in which case printed copies of the proxy materials will be provided at no charge. Our Notice of Internet Availability of Proxy Materials was first mailed to stockholders of record and beneficial owners on or about March 17, 2026. Any stockholder may request to receive proxy materials in printed form by mail or electronically by e-mail for this year and on an ongoing basis by following the instructions set forth in the Notice of Internet Availability of Proxy Materials.