The information contained in this press release is not for publication, release or distribution, directly or indirectly, in or into the United States, Australia, Hong Kong, Japan, Canada, New Zealand, Switzerland, Singapore, South Africa, South Korea, Russia, Belarus or any other jurisdiction where such publication or distribution would be contrary to applicable laws or regulations. Please see "Important information" at the end of this press release.

The Board of Directors of OncoZenge AB (publ) ("OncoZenge" or the "Company") has, based on renewed authorisation granted by the Annual General Meeting on 28 May 2025, resolved on a directed share issue of 933,930 shares to new strategic investor Sichuan Yangtian Bio-Pharmaceutical Co, Ltd (the "Investor") at a subscription price of SEK 6.47 per share (the "Directed Share Issue"). The Directed Share Issue has been resolved upon after positive outcome of completed foreign exchange registration by delegated bank in China and confirmation of completion of the mandatory Overseas Direct Investment (ODI) process in China ("ODI Process"). All 933,930 shares have been formally subscribed for by the Investor and allotted by the Board of Directors, which means that the Company will receive approximately SEK 6 million before deduction of administrative transaction costs. The Directed Share Issue corresponds to 20 percent of the investment undertaking of SEK 30.2 million (the "Investment") in accordance with the investment agreement entered into by the Company and the Investor on 27 January 2025 (the "Investment Agreement").

Stian Kildal, CEO of OncoZenge, comments:

"With today's decision by our Board of Directors we are pleased to formally welcome Yangtian Pharma as a strategic shareholder in OncoZenge. Their investment is a critical enabler to OncoZenge now becoming a late stage, Phase 3, pharmaceutical company. Together, we are united in our mission to make BupiZenge available to the millions of cancer patients who need it, globally. During the past months we have aligned plans and partners for execution of our project. Which means we are now, in partnership with Yangtian Pharma and our pan-European licensee Molteni Farmaceutici, ready to take the next steps towards unlocking the commercial potential for BupiZenge in Europe, and beyond. As a team we are thrilled to now bring our product closer to patients in a way that we think will create significant shareholder value for all."

Background and motive

On 27 January 2025, OncoZenge announced that the Company has entered into an SEK 30.2 million Investment Agreement with the Investor, with the dual aim to obtain the necessary capital to fund the Phase 3 project for BupiZenge™ and of securing a new major strategic shareholder with the capacity to support the Company's continued growth journey. The Investment was conditional of customary regulatory approvals and the successful completion of the ODI Process and is conditional of the Company achieving certain Phase 3 trial milestones. In accordance with the Company's previous announcements and to cater for the lead-time in the ODI Process to complete, OncoZenge and the Investor entered into an amendment to the Investment Agreement, with the timeframe of the ODI process being extended first to May 31st, 2025, and thereafter extended to June 30, 2025, all other terms unaffected. On 6 June 2025 the Company announced that the Investor received department of commerce approval in support of the Investment. On June 27th, 2025, the Company announced that the final State Administration of Foreign Exchange (SAFE) review is completed in accordance with the ODI process, and that the condition regarding regulatory approvals is fulfilled in accordance with the Investment Agreement, and the Investment can be carried out, as soon as the delegated bank in China has completed the foreign exchange registration and customary KYC/AML controls, which has now been confirmed to the Company.

The Directed Share Issue

The Board of Directors has, based on the authorisation granted by the Annual General Meeting on 28 May 2025, resolved on a directed share issue of a maximum of 933,930 shares at a subscription price of SEK 6.47 per share. The Investor has formally subscribed for all 933,930 shares and the shares have been allotted to the Investor, which means that the Company will receive approximately SEK 6 million before deduction of administrative transaction costs.

The purpose of the Directed Share Issue and the reasons for deviating from the shareholders' preferential rights are to fulfil the Company's obligations in accordance with the Investment Agreement. The Investor currently holds no shares in the Company. The Board has conducted a comprehensive assessment and carefully considered the option of raising capital through a rights issue with preferential rights for the Company's existing shareholders. The Board has concluded that the reasons for deviating from the shareholders' preferential rights are that (i) a rights issue would entail a higher risk of a negative impact on the share price, particularly in light of the current volatile and challenging market conditions, (ii) executing the Directed Share Issue can be done at a lower cost, as a rights issue would likely require significant expenses, including guarantee commitments, (iii) the predictability of the Directed Share Issue enables the Company to initiate and execute the Phase 3 project for the Company's product candidate, BupiZenge™ and (iv) to further diversifying and strengthening the Company's shareholder base with a new strategic, financially strong, and professional investor, which is expected to enhance the liquidity of the Company's shares and contribute to the Company's long-term financial stability. Hence, the Board's assesses that execution of the Directed Share Issue is in the best interest of the Company and the Company's shareholders.

The subscription price in the Directed Share Issue has been negotiated on arm's length between the Company and the Investor prior to entering into the Investment Agreement on 27 January 2025, and corresponds to a premium of approximately 40 percent compared to the volume-weighted average price of the Company's share on Nasdaq First North Growth Market during a period of 20 trading days ending on 24 January 2025, and represents a discount of approximately 3.43 percent compared to the volume-weighted average price of the Company's shares on 1 July 2025. The Board assesses the subscription price to be market-based.

The proceeds from the Directed Share Issue will be allocated for conducting the Phase 3 clinical trial and for general corporate purposes and operational activities, as follows:

• Appointment of CDMO for manufacture of BupiZenge™ for the trial;
• Required resourcing of sponsor oversight roles needed for initiating the clinical trial;
• Preparation of the dossier for filing the Clinical Trial Application (CTA);
• Appointment of CRO for execution of the clinical trial;
• Joint business development and collaboration with the Investor to maximize the commercial potential in China;
• Business development for BupiZenge™ licensing in global markets;
• Corporate OPEX such as management, legal, finance, Nasdaq listing fees etc;
   

Through the Directed Share Issue, the number of shares and votes in the Company will increase by 933,930 from 11,713,244 to 13,114,139. The share capital will increase by SEK 103,770.064725 from SEK 1,301,4712,267328 to SEK 1,405,242.432053. The Directed Share Issue results in a dilution of approximately 7,1 percent of the capital and votes for existing shareholders (calculated as the number of newly issued shares divided by the total number of shares in the Company after the Directed Share Issue).

The Investment

Pursuant to the Investment Agreement, the Investor has committed to subscribe for a total of maximum 4,669,647 new shares in the Company at a subscription price of SEK 6.47 per share. The shares will be issued in four separate tranches, corresponding to 10, 10, 30, and 50 percent of the Investment, whereby the Directed Share Issue represents the first and second tranche. Execution of the third and fourth tranches are conditional of the Company achieving certain Phase 3 trial milestones. Through the Investment, the Investor will gain a total ownership stake in the Company of approximately 28.5 percent, based on the outstanding number of shares and votes at time of the Directed Share Issue.

Written undertakings to vote in favour of a board candidate nominated by the Investor have been procured from shareholders collectively representing approximately 34 percent of the shares and votes in the Company, conditional of the Investor reaching an ownership stake in the Company of not less than twenty (20) percent of the share capital and votes.

The remaining two tranches of the Investment is intended to be executed as follows:

• Subject to the Company having submitted the complete phase 3 Clinical Trial Application (CTA) in Europe for Bupizenge™, which is estimated to be submitted during the third or fourth quarter of 2025, the Board will resolve on the third directed share issue and the Investor will subscribe for 1,400,894 new shares at a subscription price of SEK 6,47 per share, corresponding to a total consideration payable to the Company by the Investor of approximately SEK 9.1 million.

• Subject to the Company having received European approval for phase 3 Clinical Trial Application (CTA), which is estimated to be received during the fourth quarter of 2025 or first quarter of 2026 depending on regulatory lead time, the Board shall resolve on the fourth directed share Issue and the Investor shall subscribe for 2,334,823 new shares at a subscription price of SEK 6,47 per share, corresponding to a total consideration payable to the Company by the Investor of approximately SEK 15.1 million.

Advisors

Aqurat Fondkommission AB acts as issuing agent in relation to the Directed Share Issue and Fredersen Advokatbyrå AB acts as legal advisor to the Company in relation to the Directed Share Issue and Investment.

This information is such that OncoZenge AB (publ) is obliged to make public pursuant to the EU Market Abuse Regulation (MAR). The information was submitted for publication, through the agency of the contact persons set out below, at 08:55 CEST on 2 July 2025.

For additional information, please contact:

Stian Kildal, CEO, mobile: +46 76 115 3797, e-mail: stian.kildal@oncozenge.se
Michael Owens, CFO, mobile: +46 73 324 4988, e-mail: michael.owens@oncozenge.se

Certified Adviser

OncoZenge's Certified Adviser is Redeye AB.

OncoZenge AB

Gustavslundsvägen 34, 167 51 Stockholm, Sweden

About OncoZenge

OncoZenge is dedicated to developing an innovative, effective, and well-tolerated treatment for oral pain in conditions where current options fall short, often due to insufficient pain relief or significant side effects. BupiZenge™ is a novel oral lozenge formulation of bupivacaine, a local anesthetic with decades of clinical experience. The lead indication for BupiZenge™ is oral pain caused by oral mucositis, an inflammatory condition affecting millions of cancer patients. Oral mucositis leads to severe physical and psychological distress, representing a significant unmet medical need for an effective, opioid-sparing treatment. In Phase 2 trials, BupiZenge™ demonstrated substantially better pain relief compared to the standard of care. OncoZenge is headquartered in Stockholm, Sweden, and is publicly traded on Nasdaq First North Growth Market under the ticker ONCOZ.

Important information

This announcement is not for publication, release or distribution, in whole or in part, directly or indirectly, in or into United States, Australia, Hong Kong, Japan, Canada, New Zealand, Switzerland, Singapore, South Africa, South Korea, Russia, Belarus or any other jurisdiction in which publication, release or distribution would be unlawful. This announcement is for information purposes only and does not constitute an offer to sell or issue, or the solicitation of an offer to buy, acquire or subscribe for shares in the capital of the Company in any jurisdiction in which such offer or solicitation is not authorised or to any person to whom it is unlawful to make such offer or solicitation. Any failure to comply with these restrictions may constitute a violation of the securities laws of such jurisdictions.

This announcement is not a prospectus for the purposes of Regulation (EU) 2017/1129 (the "Prospectus Regulation") and has not been approved by any regulatory authority in any jurisdiction. The Company has not authorized any offer to the public of shares or other securities in any member state of the EEA and no prospectus has been or will be prepared in connection with the Directed Share Issue. In any EEA Member State, this communication is only addressed to and is only directed at qualified investors in that Member State within the meaning of the Prospectus Regulation.

In the United Kingdom, this announcement and any other materials in relation to the securities described herein is only being distributed to, and is only directed at, and any investment or investment activity to which this document relates is available only to, and will be engaged in only with, "qualified investors" (within the meaning of the Prospectus Regulation as it forms part of domestic law in the United Kingdom by virtue of the European Union (Withdrawal) Act 2018 (the "UK Prospectus Regulation"), who are (i) persons having professional experience in matters relating to investments who fall within the definition of "investment professionals" in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the "Order"); or (ii) high net worth entities falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as "relevant persons"). In the United Kingdom, any investment or investment activity to which this communication relates is available only to, and will be engaged in only with, relevant persons. Persons who are not relevant persons should not take any action on the basis of this press release and should not act or rely on it.

The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933 (the "Securities Act") or with any securities regulatory authority of any state or other jurisdiction of the United States and may not be offered, sold or transferred, directly or indirectly, in or into the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and in compliance with any applicable securities laws of any state or other jurisdiction of the United States. No public offering of the Directed Share Issue is being made in the United States, Sweden or elsewhere.

This announcement has been issued by, and is the sole responsibility of, the Company. The distribution of this announcement and the offering of the securities referred to herein in certain jurisdictions may be restricted by law. No action has been taken by the Company or any of its respective affiliates that would, or which is intended to, permit an offering of the securities in any jurisdiction or result in the possession or distribution of this announcement or any other offering or publicity material relating to the securities in any jurisdiction where action for that purpose is required. Persons into whose possession this announcement comes are required by the Company to inform themselves about, and to observe, such restrictions.

This announcement does not identify or suggest, or purport to identify or suggest, the risks (direct or indirect) that may be associated with an investment in the Directed Share Issue. Any investment decision to buy shares in the Directed Share Issue must be made solely on the basis of publicly available information.

This announcement does not constitute an invitation to underwrite, subscribe for or otherwise acquire or dispose of any securities in any jurisdiction. This announcement does not constitute a recommendation concerning any investor's option with respect to the Directed Share Issue. Each investor or prospective investor should conduct his, her or its own investigation, analysis and evaluation of the business and data described in this announcement and publicly available information. The price and value of securities can go down as well as up. Past performance is not a guide to future performance.

This announcement contains (or may contain) certain forward-looking statements with respect to certain of the Company's current expectations and projections about future events. These statements are not historical facts and contain expressions such as "believes", "expects", "anticipates", "intends", "estimates", "will", "may", "continues", "should" and other similar expressions. The forward-looking statements in this announcement are based on various assumptions, which in several cases are based on additional assumptions. Although OncoZenge believes these assumptions were reasonable when made, such forward-looking statements are subject to known and unknown risks, uncertainties, contingencies and other material factors that are difficult or impossible to predict and beyond its control. Such risks, uncertainties, contingencies and material factors could cause actual results to differ materially from those expressed or implied in this communication through the forward-looking statements. The information contained in this announcement is subject to change without notice and, except as required by applicable law or the Nasdaq First North Growth Market Rulebook for Issuers of shares, the Company does not assume any responsibility or obligation to update publicly or review any of the forward-looking statements contained in it and nor do they intend to. Accordingly, investors are cautioned not to place undue reliance on any of these forward-looking statements.