20 August 2026

Tekcapital plc

("Tekcapital" or the "Company")

Portfolio Company Update

Vesari Inc. Appoints Leading Satellite Communications Researcher

Professor Beatriz Soret to its Science Advisory Board

Tekcapital plc (AIM: TEK), the UK intellectual property investment group focused on creating valuable products that can improve people's lives, is pleased to provide an update for Vesari Inc. ("Vesari") which is developing technology for a fully integrated, behind-the-meter, geothermal-powered hyperscale AI compute campus.

The Company is pleased to announce that Vesari has appointed Professor Beatriz Soret, one of the world's leading authorities on satellite communications and low-Earth-orbit ("LEO") networking, to its Science Advisory Board, effective 1 September 2026.

Professor Soret is a recognized authority on satellite communications with more than twenty years of experience spanning academia and industry. Professor Soret's current research centers on LEO satellite networking and inter-satellite links, including constellation design, distributed routing, and satellite edge computing, sustained through a long-standing collaboration with the European Space Agency under the ESA SatNex framework. Her early work on the fundamental tradeoff among throughput, reliability, and delay anticipated the ultra-reliable low-latency communications (URLLC) requirements that became a defining driver of 5G design. She has authored more than 100 publications, holds 17 patents, one of which is partly incorporated into the 3GPP LTE V2X Release 14 specification. Her honors include Spain's Beatriz Galindo Senior Grant, the IEEE Communications Society WICE Early Achievement Award, and a Best Paper Award at IEEE Globecom 2013.

Professor Soret holds a Ph.D. in Telecommunication Engineering from the University of Málaga, where she is an Associate Professor in the Department of Communications Engineering. She was previously an Associate Professor at Aalborg University, a Research Specialist at Nokia Bell Labs Denmark, where she contributed to the 3GPP working groups that shaped 4G and 5G standardisation, and an R&D Communications Engineer at GomSpace, where she contributed to the design and development of a satellite constellation for communications.  

Clifford M. Gross, Ph.D., Executive Chairman of Tekcapital, commented:

"Professor Soret is among the world's leading authorities on how data moves within and between satellites in low Earth orbit. Her work on LEO constellation design and inter-satellite links speaks directly to the space-based data-transmission layer of Vesari's platform, and her standardisation experience across 4G and 5G gives her a rare understanding of how a technology moves from theory to global deployment at scale. We are deeply honored to add her to Vesari's growing Science Advisory Board."

Professor Beatriz Soret added:

"Laser-based inter-satellite links are changing what is possible for moving large volumes of data, and pairing that capability with clean, firm computing on the ground is a compelling application of the science. I look forward to contributing to the networking architecture that will connect Vesari's orbital data-transmission layer to its compute campus."

Vesari Science Advisory Board

Vesari is assembling a Science Advisory Board (SAB) of distinguished scientists with deep expertise across the three technical pillars of its platform: geothermal energy; hyperscale power utilization and heat management; and low-Earth-orbit satellite laser data transmission. Together, these disciplines underpin Vesari's vision of clean, firm, and highly efficient, geothermal-powered, behind-the-meter computing infrastructure for the AI era. Professor Soret joins the SAB alongside geothermal scientist Dr. Joseph N. Moore, whose appointment was announced on 17 July 2026 and satellite communications expert Dr. Barry G. Evans, whose appointment was announced on 28 July 2026. Vesari's SAB is expected to provide insight and inform best practices for the development of its newly designed geothermal powered hyperscaler.

About Tekcapital plc

Tekcapital creates value from investing in new, university and corporate developed discoveries that can enhance people's lives. Tekcapital is quoted on the AIM market of the London Stock Exchange (AIM symbol: TEK) and is headquartered in the UK. For more information, please visit www.tekcapital.com. 

On 6 of August 2026 Tekcapital reported its 2026 H1 results. For the six months ended 30 June 2026 net assets rose to US$201.7 million, up from US$55.1 million at 31 December 2025, lifting net asset value per share to US$0.78 from US$0.27. The Company's investment portfolio was valued at US$191.4 million at the period end, compared with US$46.9 million at 31 December 2025, and generated US$145.5 million in portfolio returns and revenue for the first half of 2026, against US$6.1 million in the first half of 2025. Profit after tax was US$144.8 million, versus US$5.4 million in the prior half-year period, while operating expenses fell 7.3% to US$0.69 million, reflecting continued cost discipline.

About Vesari Inc.

Vesari Inc. is developing the technology for a fully integrated, behind-the-meter, geothermal-powered hyperscale AI campus for 24/7 carbon-free compute. Its patent-pending, protected architecture is designed to improve the efficiency and economics of AI infrastructure, independent of the public grid. For more information, please visit www.vesari.ai.

Tekcapital holds 51% of the common stock of Vesari Inc.

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Forward-Looking Statements and Risk Factors

This announcement contains forward-looking statements regarding the Company's and Vesari's objectives, strategy and plans. Such statements involve known and unknown risks and uncertainties, many of which are beyond the Company's control, and actual results may differ materially. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this announcement. The appointment of members to Vesari's Science Advisory Board does not guarantee any particular technical, commercial or financial outcome, and Vesari's development programme remains at an early stage and is subject to significant risks and uncertainties. The Company does not undertake to update any forward-looking statements, except as required by law.