TNL Mediagene (NASDAQ: TNMG) Announces Appointment of Web3 Investor and Technologist Koki Uchiyama to Digital Asset Advisory Group

-The Company has appointed Koki Uchiyama, a tech entrepreneur, founder and prominent figure in the crypto, blockchain and Web3 technology community, to its DAT Advisory Group

-Koki's background spans involvement in technology milestones including the creation of one of Japan's earliest search engines, founding one of Japan's first social media analytics companies to IPO, notable social impact blockchain initiatives and blockchain education / evangelist efforts

-Koki is currently the Founding Partner of Nonagon, a San Francisco-based VC backing early-stage teams building in crypto, blockchain and Web3

-The DAT Advisory Group will provide insights and guidance to the Company and its Board of Directors on the thoughtful and responsible implementation of its DAT Strategy, in line with industry best practices

NEW YORK and TOKYO, Sept. 30, 2025 /PRNewswire/ -- TNL Mediagene (Nasdaq: TNMG) (the "Company"), a Tokyo-based next-generation digital media and data group in Asia, today announced the appointment of Web3 investor and technologist Koki Uchiyama to its digital asset treasury advisory group ("DAT Advisory Group") in connection with its recently announced digital asset treasury strategy ("DAT Strategy").

Koki is a tech entrepreneur, founder and prominent figure in the crypto, blockchain and Web3 technology community in Japan and internationally. Koki is the founding partner of Nonagon, a San Francisco-based VC backing early-stage teams building in crypto, blockchain and Web3. Prior to Nonagon, Koki founded and served as CEO of Hottolink, which is one of the leading social media analytics services in Japan.

Koki has been influential in the use of blockchain technology for social impact, exemplified by his Famiee Project, which issues blockchain-based partnership certificates to LGBTQ+ couples and diverse family structures in Japan with the goal of recognizing and validating committed family relationships that traditional systems may overlook. Koki is also one of founders of The University of Tokyo's Blockchain Innovation Lab, among several other notable projects. Koki's esteemed career includes involvement with the development of technology in the early days of the internet in Japan, including assisting the development of one of Japan's earliest search engines while in graduate school. Koki is a strong evangelist for the power of blockchain technology, emphasizing that blockchain holds the potential for decentralizing social systems.

"Koki is an extremely accomplished and influential individual both in Japan and internationally and has an extensive track record as an evangelist and thought leader for emerging technologies. Koki brings a wealth of digital asset, Web3 and technology experience to our DAT Advisory Group that we believe will be invaluable in guiding our Company on the thoughtful and responsible implementation of our DAT Strategy in line with industry best practices. We are very excited and honored to have him join us," Co-Founder & CEO Joey Chung commented.

"We believe Koki brings an exceptional skillset and professional background that, together with our other esteemed DAT Advisory Group appointments, will provide our Company with the right competence and insights to guide our DAT Strategy. Koki has been a technology pioneer, visionary and successful builder through several key secular technological shifts and we are thrilled to welcome him to our DAT Advisory Group" Co-Founder & President Motoko Imada added.

About TNL Mediagene

Headquartered in Tokyo, TNL Mediagene was formed in May 2023 through the merger of Taiwan's The News Lens Co. and Japan's Mediagene Inc., two of the region's leading independent digital media groups. The company's operations span original and licensed media brands in Japanese, Chinese, and English, covering topics such as news, business, technology, science, food, sports, and lifestyle. It also offers AI-driven advertising services, marketing technology platforms, ecommerce, and innovative solutions tailored to the needs of advertising agencies. Known for its political neutrality, appeal to younger audiences, and high-quality content, TNL Mediagene has approximately 500 employees across Asia, with offices in Japan, Taiwan, and Hong Kong.

https://www.tnlmediagene.com/

Cautionary Statement Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, that are based on beliefs and assumptions and on information currently available to TNL Mediagene. Forward-looking statements generally relate to future events or TNL Mediagene's future financial or operating performance. In some cases, you can identify forward-looking statements by the following words: "may," "will," "could," "would," "should," "expect," "intend," "plan," "anticipate," "believe," "estimate," "predict," "project," "potential," "continue," "ongoing," "target," "seek" or the negative or plural of these words, or other similar expressions that are predictions or indicate future events or prospects, although not all forward-looking statements contain these words. Forward-looking statements in this communication include, but are not limited to, statements about TNL Mediagene's future business plan and growth strategies and statements by TNL Mediagene's management. Any statements that refer to expectations, projections or other characterizations of future events or circumstances, including strategies or plans, are also forward-looking statements. These statements involve risks, uncertainties and other factors that may cause actual results, levels of activity, performance or achievements to be materially different from those expressed or implied by these forward-looking statements. Forward-looking statements in this communication or elsewhere speak only as of the date made. New uncertainties and risks arise from time to time, and it is impossible for TNL Mediagene to predict these events or how they may affect TNL Mediagene. In addition, risks and uncertainties are described in TNL Mediagene's filings with the Securities and Exchange Commission. These filings may identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. TNL Mediagene cannot assure you that the forward-looking statements in this communication will prove to be accurate. There may be additional risks that TNL Mediagene presently does not know or that TNL Mediagene currently does not believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by TNL Mediagene, its directors, officers or employees or any other person. Except as required by applicable law, TNL Mediagene does not have any duty to, and does not intend to, update or revise the forward-looking statements in this communication or elsewhere after the date of this communication. You should, therefore, not rely on these forward-looking statements as representing the views of TNL Mediagene as of any date subsequent to the date of this communication.

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