** WARNING: This email originated from outside of Lumen. Use caution when clicking links or opening attachments. ** Good afternoon Craig and Spokane team, Thank you again for the conversation during your visit last week. As a follow-up, our economic development team pulled together a set of materials highlighting Spokane and our health and life sciences ecosystem. They’ve also compiled an initial snapshot of regional data to support your considerations around production and fabrication needs. You can access all the materials here: https://spaces.hightail.com/space/g3HWWDxMEV. We also wanted to highlight the Riverside Biotech Hub, which may be of interest as you continue to explore Spokane’s capabilities and resources within this sector. I’ve included my colleagues Joey Gunning, Director of Economic Development, and Stacia Rasmussen, Director of Sector Growth & Innovation. They are great resources and would be happy to provide additional information or answer any questions as you continue your evaluation. We appreciate your continued interest and look forward to staying connected. Alisha Benson, IOM Chief Executive Officer Greater Spokane Inc. O: 509.321.3608 C: 509.999.9202 together we’re greater

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.