NOTE 3 – LICENSE AGREEMENTS

In September 2021, the Company entered into the Newsoara License Agreement with Newsoara BioPharma Co. Ltd. In October 2025, Newsoara BioPharma Co. Ltd. assigned all of its rights and obligations under the Newsoara License Agreement to an affiliate, Newsoara HYK Biopharmaceuticals Co., Ltd. Pursuant to the Newsoara License Agreement, the Company granted Newsoara an exclusive license to research, develop, commercialize or exploit (i) any and all oncolytic viruses that are controlled by the Company, including Olvi-Vec but excluding V-VET1 (licensed viruses); (ii) any pharmaceutical product in final form that is comprised of or contains the licensed viruses as an active ingredient (licensed products); (iii) any virus developed by or behalf of Newsoara that (a) has a vaccinia virus backbone; (b) is not disclosed or covered by any of the Company’s patents; and (c) includes modifications (as compared to the licensed viruses) of a gene function with therapeutic intent (derived molecules); and (iv) any pharmaceutical product in final form that is comprised of or contains derived molecule as an active ingredient (derived products), in each case in mainland China, Taiwan, Hong Kong and Macau (the Newsoara Territory) in the field of human diagnostic, prophylactic and therapeutic uses (the Newsoara Field). The license granted to Newsoara is royalty bearing for licensed products and royalty free for derived products.

Under the Newsoara License Agreement, Newsoara granted the Company an exclusive and royalty bearing license to develop, commercialize, and exploit outside the Newsoara Territory any derived products developed by Newsoara. Under the terms of the Newsoara License Agreement and to date, the Company has received from Newsoara an aggregate of $11.0 million ($5.0 million as an upfront payment and $6.0 million as a milestone payment) associated with the Newsoara License Agreement. Newsoara is obligated to pay the Company additional development and commercial milestone payments up to $160.5 million in the aggregate upon the occurrence of certain development, regulatory and commercial milestones by the licensed products, and royalties on net sales of the licensed products in the mid-single-digit to mid-teens percentage range (the Newsoara Royalty). The Newsoara Royalty term, with respect to a licensed product and each region in the Newsoara Territory, is the period beginning on the date of first commercial sale of such licensed product in such region and ending on the last to occur of: (a) the expiration of the last to expire patent controlled by the Company (including any applicable patent term extension) in such region that contains either (i) an issued valid claim that covers the licensed product (including the licensed virus contained therein, and including the composition of matter and method of making and using thereof) or (ii) a pending valid claim that covers the sequence of the licensed virus contained therein; (b) the 10th anniversary of the first commercial sale of such licensed product in such region; and (c) the expiration of all regulatory exclusivity for such licensed product in such region. If the Company, at its discretion, elects to develop and commercialize outside the territory any derived product developed by Newsoara, the Company is required to make certain milestone and royalty payments to Newsoara.

Pursuant to the Newsoara License Agreement, Newsoara is required to use commercially reasonable efforts to research, develop, manufacture, and commercialize the licensed products in the Newsoara Territory in the Newsoara Field and is solely responsible for all costs and expenses incurred in connection with such activities. In addition, Newsoara is required to use commercially reasonable efforts to conduct a multi-center Phase 2 clinical trial for Olvi-Vec in NSCLC using clinical sites in the United States and China, which is the VIRO-25 clinical trial. Newsoara is generally obligated under the Newsoara License Agreement to fund the costs of the VIRO-25 clinical trial in the United States and China. In November 2023, the Company and Newsoara agreed that the Company would engage a clinical research organization (CRO) to conduct certain start-up activities for the trial in the United States only, with Newsoara to reimburse the Company for the costs and expenses. Pursuant to a letter of understanding (the LOU), in September 2025, the Company agreed with Newsoara that the CRO would conduct additional study activities beyond startup for the VIRO-25 clinical trial in the United States and Newsoara would reimburse the Company for costs and expenses related to such additional activities; however, Newsoara is permitted to defer reimbursement of the foregoing costs and expenses until the earlier of: (i) completion of its next round of financing, or (ii) December 31, 2026.

In November 2022, the Company entered into a Clinical Supply Agreement with Newsoara to manufacture and supply Olvi-Vec for Newsoara’s clinical trials in the Newsoara Territory. The Company is responsible for supplying Olvi-Vec at its own costs of manufacturing, without markup.