Event Details

2022 Annual Meeting of Shareholders

May 23, 2022 02:00 PM PT

Conducted via live webcast in a virtual meeting format only at www.virtualshareholdermeeting.com/NWN2022

Internet Voting Before the Meeting – http://www.proxyvote.com

Telephone Voting Before the Meeting – 1-800-690-6903

All internet and telephone voting are available 24 hours a day, 7 days a week, until 11:59 pm EDT on May 22, 2022 or, for participants in the 401(k) Plan, until 11:59 pm EDT on May 18, 2022.

2021 Annual Report

2022 Proxy Statement

Important Meeting Information

At the time we distributed our notice of the 2022 Annual Meeting of Shareholders of Northwest Natural Holding Company (NW Holdings or the Company), the world has grappled with the COVID-19 pandemic for over two years, with widespread global, national, and local impacts and disruptions. We are heartened by declines in reported infections nationally and locally after the peak of the Omicron wave. At the same time we are cognizant of possible resurgences or variants of the virus and concerns regarding in-person gatherings. After careful consideration, the NW Holdings’ Board of Directors determined to hold the 2022 Annual Meeting virtually, via a live webcast. We believe this format is important to protect the health and well-being of our shareholders, employees, directors and communities. While we will miss welcoming our shareholders in person, we have made arrangements to hold an electronic, webcast meeting that will afford shareholders the same rights and access as if the meeting were held in person, including the ability to vote shares and submit questions electronically during the meeting. We appreciate your understanding and support as we navigate what we hope is the final stage of the pandemic. We look forward to gathering with our shareholders in person at our next annual meeting.

In order to attend and to participate in the virtual meeting, please visit www.virtualshareholdermeeting.com/NWN2022, where you will be prompted to enter the 16-digit control number found on your proxy card or your Voting Instruction Form provided by your broker, bank, or other nominee. If you receive your Annual Meeting materials electronically and wish to attend the virtual meeting, please follow the instructions provided online for attendance. Once you have joined the virtual meeting, you may, just as you would be able to do so in person, vote your shares or submit a question electronically during the meeting by following the instructions available on the meeting website. To permit as many shareholders as possible to participate, only shareholders or their valid proxy holders may participate in the meeting. If you plan on attending the virtual meeting, we encourage you to allow ample time to log in online and recommend that you do so fifteen minutes before the meeting start time to ensure that you are logged in when the meeting begins. If you have difficulty accessing the Annual Meeting through the meeting website, a phone number will be posted on the meeting website to connect you to technical support.

Questions? Please contact our Shareholder Services at 800-422-4012 ext 2402.