VOLITIONRX LTD Revenue Disclosure

The Company recognizes revenue in accordance with ASCTopic 606, “Revenue from Contracts with Customers.” Under ASC 606, the Company recognizes revenue when the customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. The Company recognizes revenues following the five-step model prescribed under ASC 606: (i) identify contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenues when (or as) the Company satisfies the performance obligation(s).

The Company generates product revenues from the sale of its Nu.Q^® Vet Cancer Test, from the sale of nucleosomes, and from the sale of research use only kits. In addition, revenue is received from external third parties for services the Company performs for them in its laboratory.

Revenues, and their respective treatment for financial reporting purposes under ASC 606, are as follows:

Royalty

The Company receives royalty revenue on the net sales recognized during the period in which the revenue is earned, and the amount is determinable from the licensee. These are presented under “Royalty” in the consolidated statements of operations and comprehensive loss. The Company has not recognized any revenue under royalty for the years ended December 31, 2025, and December 31, 2024. The Company does not have future performance obligations under this revenue stream. In accordance with ASC 606, the Company records these amounts based on estimates of the net sales that occurred during the relevant period from the licensee. Differences between actual and estimated royalty revenues are adjusted in the period in which they become known.

Product

The Company includes revenue from product sales recognized during the period in which goods are shipped to third parties, and the amount is deemed collectable from the third parties. These are presented in “Product” in the consolidated statements of operations and comprehensive loss.

Service

The Company includes revenue recognized from laboratory services performed in the Company’s laboratory on behalf of third parties under “Service” under the consolidated statements of operations.

For each development and/or commercialization agreement that results in revenues, the Company identifies all performance obligations, aside from those that are immaterial, which may include a license to intellectual property and know-how, development activities and/or transition activities. In order to determine the transaction price, in addition to any upfront payment, the Company estimates the amount of variable consideration at the outset of the contract either utilizing the expected value or most likely amount method, depending on the facts and circumstances relative to the contract. The Company constrains the estimates of variable consideration such that it is probable that a significant reversal of previously recognized revenue will not occur throughout the life of the contract. When determining if variable consideration should be constrained, management considers whether there are factors outside the Company’s control that could result in a significant reversal of revenue. In making these assessments, the Company considers the likelihood and magnitude of a potential reversal of revenue. These estimates are re-assessed each reporting period as required.

Licensing

The Company includes revenue recognized from the licensing of certain rights to third parties in “Licensing” in the consolidated statements of operations and comprehensive loss. For each licensing, development and/or commercialization agreement that results in revenues, the Company identifies all performance obligations, aside from those that are immaterial, which may include a license to intellectual property and know-how, development activities and/or transition activities. In order to determine the transaction price, in addition to any upfront payment, the Company estimates the amount of variable consideration at the outset of the contract either utilizing the expected value or most likely amount method, depending on the facts and circumstances relative to the contract. The Company constrains (reduces) the estimates of variable consideration such that it is probable that a significant reversal of previously recognized revenue will not occur throughout the life of the contract. When determining if variable consideration should be constrained, management considers whether there are factors outside the Company’s control that could result in a significant reversal of revenue. In making these assessments, the Company considers the likelihood and magnitude of a potential reversal of revenue. These estimates are re-assessed each reporting period as required.

Revenue from Heska Agreement

On March 28, 2022, Belgian Volition entered into a Master License and Supply Agreement (the “License Agreement”) with Heska Corporation (“Heska”), now an Antech company, a leading global provider of advanced veterinary diagnostics, pursuant to which Belgian Volition granted Heska worldwide exclusive rights to sell the Nu.Q® Vet Cancer Test at the point of care (“POC”) initially for the screening of lymphoma and hemangiosarcoma in dogs (“Canine Lymphoma & HSA”), and non-exclusive rights to sell its Nu.Q® Vet Cancer Test in kit format (“Kits”) through Heska’s network of central reference laboratories (“Central Lab”) initially for Canine Lymphoma & HSA.

Under and subject to the terms of the License Agreement, Belgian Volition received an upfront payment of $10.0 million in 2022, and received further milestone payments in 2023 of (i) $6.5 million upon the first commercial sale by or on behalf of Heska of a POC screening test for Canine Lymphoma & HSA and (ii) $6.5 million upon the first commercial sale by or on behalf of Heska of a POC monitoring test for the same conditions. A further milestone payment of $5.0 million will be payable to Volition pursuant to the Agreement upon the earlier of (a) the first commercial sale by or on behalf of Heska of a screening or monitoring test for lymphoma in felines, or (b) the 9-month anniversary of the first peer reviewed paper evidencing clinical utility for the screening or monitoring of lymphoma in felines being published in any one of a number of periodicals identified by the parties. Any further expansion of the License Agreement to cover the use of the Nu.Q® Vet Cancer Test for other cancer and non-cancer indications is subject to negotiation between the parties.

Pursuant to the terms of the License Agreement, Belgian Volition will also supply Central Lab Kits and will receive a pre-agreed price per test, adjusted annually for inflation. The price per test for POC key components (“Key Components”) is also discounted to reflect the lower cost to Belgian Volition and additional assembly costs for Heska, as well as consideration for Heska’s upfront and milestone payments. Heska will assemble the Key Components for use at the POC, and is additionally responsible for marketing and distribution efforts and related costs.

The License Agreement may be terminated by either party for a material breach by the other party, subject to notice and cure provisions, or in the event of the other party’s insolvency. Heska also has the option to terminate if it is unable to adapt the Key Components for use on a POC platform. Unless earlier terminated, the License Agreement will continue in effect for an initial term of 22 years for POC and 5 years for Central Lab, with the Central Lab term then continuing on a rolling one-year basis for the POC term.

According to ASC Topic 606, “Revenue from Contracts with Customers”, a performance obligation is a commitment to provide a distinct good or service or a series of distinct goods or services. Goods and services that are not distinct are bundled with other goods or services in the contract until a bundle of goods or services that is distinct is created. A good or service promised to a customer is distinct if the customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer and the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract.

In conjunction with the License Agreement, the Company evaluated whether the performance obligations granted under the License Agreement were distinct and concluded that they were not distinct as Heska could not benefit from the license without the supply (manufacturing) services. The supply services are highly specialized and are dependent on the supply of the product from the Company. As such, the performance obligations granted under the License Agreement were combined to constitute a single performance obligation and the Company accounts for them as a single contract.

During the first quarter of 2022, the Company received a $10.0 million upfront payment under the License Agreement and further upfront payments totaling $13.0 million in the fourth quarter of 2023, which were included as deferred revenue on the accompanying consolidated balance sheet. The Company allocated the milestone payments that were not constrained to the single performance obligation in the contract. The Company expects to recognize the total $28.0 million of milestone amounts under the License Agreement over time using an output method based on Key Components and Kits supplied to Heska.

In determining the transaction price, the Company analyzed the variable consideration and whether such variable consideration was constrained. The Company will reassess this variable consideration at each reporting period and adjust the transaction price, if necessary. The total Key Components and Kits that the Company expects to manufacture for Heska over the life of the contract represents a significant judgment in recognizing revenue.

Sales to the Company’s three largest customers represented over 43% of total sales for the year ended December 31, 2025 and over 67% of total sales for the year ended December 31, 2024.