** WARNING: This email originated from outside of Lumen. Use caution when clicking links or opening attachments. ** Thank you all for taking the time to attend. I thought the discussion was valuable for everyone and I appreciate the engagement from all parties. Thank you, Craig, for the visit and the details about Lumen’s progress. And for considering our region for your first expansion. As promised, I am sharing Craig’s contact information (ccd and see below). I’m confident we can put a few things in place to help make Lumen’s expansion to Spokane as seamless as possible. Thanks again, and I look forward to staying connected on this great opportunity for the Inland Northwest! Mark Mark Gustafson President | Avista Development, Inc. Director | Strategic Investments Avista Corp 1411 E MISSION AVE | MSC-15 | SPOKANE, WA 99202 CELL 509-468-7910 Craig Behnke, Ph.D. cbehnke@lumen.bio EVP, Production and Development | Lumen Bioscience, Inc. m: (858) 210-2308 Get Outlook for iOS

When: Tuesday, March 10, 2026 2:00 PM-3:30 PM. Where: Mission Boardroom CONFIDENTIALITY NOTICE: The contents of this email message and any attachments are intended solely for the addressee(s) and may contain confidential and/or privileged information and may be legally protected from disclosure. If you are not the intended recipient of this message or an agent of the intended recipient, or if this message has been addressed to you in error, please immediately alert the sender by reply email and then delete this message and any attachments. This message and any attachments comprise confidential and proprietary information of Lumen Bioscience, Inc. This message and any attachments comprise confidential and proprietary information of Lumen Bioscience, Inc. USE CAUTION - EXTERNAL SENDER Do not click on links or open attachments that are not familiar. For questions or concerns, please e-mail phishing@avistacorp.com