This news release constitutes a "designated news release" for the purposes of the Company's amended and restated prospectus supplement dated June 16, 2026 to its short form base shelf prospectus dated October 31, 2025.

San Antonio, Texas--(Newsfile Corp. - June 22, 2026) - HIVE Digital Technologies Ltd. (TSX:HIVE) (NASDAQ:HIVE) (FSE: YO0) (BVC: HIVECO) (the "Company" or "HIVE"), today announces the successful completion of its inaugural research project using HIVE GPUs for AI research purposes in Asunción, Paraguay, in collaboration with the Department of Industrial Engineering and Operations Research at Columbia University in New York.

This research has been submitted to The Conference on Neural Information Processing Systems ("NeurIPS"), one of the leading machine learning and computational neuroscience conference held annually in December. Along with ICLR and ICML, it is one of the three primary conferences of high impact in machine learning and artificial intelligence research globally.

This establishes a proof of concept for intercontinental AI training, where researchers in New York City successfully ran iterative training runs on GPUs located in Asunción, Paraguay. With this data, HIVE now has a reference point for the performance of AI workloads using GPUs in Asunción. Using code optimizations developed by the Columbia team, the research found that HIVE's A40 GPUs matched the performance of newer-generation H100 GPUs.

A researcher from the Department of Industrial Engineering and Operations Research at Columbia University said:

"We study neural network pretraining using optimization theory over general geometry and under large noise. We design and analyze an accelerated algorithm that matches the performance of the current leading method, Muon, in both theory and practice.

As shown in the paper, our work on these nodes focuses on the performance of pretraining algorithms. Over the past two months, we optimized our code for the A40s and tested the throughput and latency of Muon and our variants. In our use case of pretraining LLMs of up to 1.4B parameters, our results match those of H100s after normalizing for each hardware's raw performance.

Additionally, we tested the serving throughput and latency of our 1.4B model, which has not yet been heavily optimized, and included standard throughput and latency tests for LLaMA models as well."

Using the measured token-per-second, latency, and bandwidth data as a baseline, HIVE has established a foundation for an HPC/AI Gigafactory in Yguazú, Paraguay, where the Company has a 100 megawatt ("MW") substation under construction. Civil works are complete, with commissioning expected this summer. The substation is expected to be energized in September 2026, with construction on a new Tier-III data center beginning Fall 2026 and a ready-for-service date in H2 2027.

Leadership Commentary

Frank Holmes, Executive Chairman of HIVE, stated:

"This proof-of-concept is an important step in HIVE's mission to help bring advanced AI computing infrastructure to Paraguay. Seeing professors from Columbia University in New York City remotely utilize our AI-optimized GPU cluster in Asunción, more than 5,000 miles away, demonstrates the power of distributed AI infrastructure. It shows that high-performance computing does not need to be limited by geography. Our vision is to bring the right power, data center design, software stack, and execution, so through HIVE, Paraguay can participate directly in the global AI economy. This milestone further validates the commercial potential of HIVE's AI platform and our ability to deliver compute across borders. This is also an important moment for Paraguay. Paraguay has the power, the strategic location, and now the proof point. HIVE is proud to help bring that future online."

Aydin Kilic, President and CEO of HIVE, added:

"At HIVE, innovation is in our DNA. That is why this work with the AI researchers at Columbia University has been so exciting. Their research is focused on next-generation neural network pretraining. In simple terms, they are working on making AI training smarter, faster, and more efficient by improving the mathematical engine behind how neural networks learn.

Over the past two months, the Columbia team optimized their code for HIVE's A40 GPU nodes in Asunción across advanced AI workloads. In their specific use case, after normalizing for each hardware platform's raw performance, the results on HIVE's A40 nodes matched those observed on H100 systems. That is a powerful result.

For HIVE, this validates a core belief: great engineering can unlock significant value. Our history includes building the BuzzMiner in collaboration with Intel Corporation and also becoming one of the largest demand-response participants in Sweden, helping balance the national electrical grid. We will continue to invest in communities, while bringing the advancements and innovations in our tech stack to our data centers globally. We see a bright future for AI in Paraguay."

An Assistant Professor in the Department of Industrial Engineering and Operations Research ("IEOR") at Columbia University added:

"We are grateful for the support that made this research possible. This work advances our understanding of modern neural network optimization, including matrix-aware optimizers such as Muon and related scale-invariant methods. By clarifying their theoretical foundations and evaluating them in practical neural network training settings, this research highlights their potential relevance for future LLM pretraining. We look forward to sharing these findings with the broader research community."

About HIVE

Founded in 2017, HIVE Digital Technologies Ltd. was among the first publicly listed companies to prioritize mining digital assets powered by green energy. Today, HIVE builds and operates next-generation Tier-I and Tier-III data centers across Canada, Sweden, and Paraguay, serving both Bitcoin and high-performance computing clients. HIVE's dual engine infrastructure-driven by hashrate services and GPU-accelerated AI computing-delivers scalable, environmentally responsible solutions for the digital economy. For more information, visit hivedigitaltech.com.

For more information, visit hivedigitaltech.com, or connect with us on:

X: https://x.com/HIVEDigitalTech
YouTube: https://www.youtube.com/@HIVEDigitalTech
Instagram: https://www.instagram.com/hivedigitaltechnologies/
LinkedIn: https://linkedin.com/company/hiveblockchain

On Behalf of HIVE Digital Technologies Ltd.

"Frank Holmes"
Executive Chairman

For further information, please contact:

Nathan Fast, Director of Marketing and Branding
Frank Holmes, Executive Chairman
Aydin Kilic, President & CEO

Tel: (604) 664-1078

Neither the TSX, Nasdaq, or any other securities exchange or regulatory authority accepts responsibility for the adequacy or accuracy of this release.

Forward-Looking Information

Except for the statements of historical fact, this news release contains "forward-looking information" within the meaning of applicable Canadian securities laws, which may include but is not limited to statements regarding: the performance of the BUZZ AI Cloud platform in Asunción, Paraguay; the ability to replicate and scale this performance; the benefits and advantages of power supply and Internet connectivity in Paraguay; the anticipated energization of the Yguazú substation in September 2026; the anticipated commencement of construction on a Tier-III data center in Yguazú in Fall 2026; the anticipated ready-for-service date of such data center in H2 2027; the expected deployment, timing, capacity, and expansion of BUZZ HPC's GPU-accelerated infrastructure in general; and any other future-oriented statements.

Forward-looking information is based on current expectations, estimates, forecasts, and projections, as well as management's beliefs and assumptions, including that the benefits of the operations in Paraguay can be replicated and scaled, infrastructure will be deployed on the expected timelines and within budget across all sites, demand for AI computing will continue to grow, and regulatory requirements will remain consistent with current expectations, and other related risks as more fully set out in the Company's disclosure documents under the Company's filings at www.sec.gov/EDGAR and www.sedarplus.ca.

Forward-looking information involves known and unknown risks, uncertainties, and other factors that may cause actual results, performance, or achievements to differ materially from those expressed or implied by such forward-looking information. Such factors include, but are not limited to the following risks: deployment timelines may change; costs may exceed expectations; performance expectations may not be achieved; demand for AI infrastructure may be lower than anticipated; partnerships or regulatory approvals may not materialize as expected; and the risk factors described in the Company's continuous disclosure documents available on SEDAR+ at www.sedarplus.ca. Readers are cautioned not to place undue reliance on forward-looking information. The Company disclaims any obligation to update or revise any forward-looking information, whether as a result of new information, future events, or otherwise, except as required by law.

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HIVE's Paraguay AI Infrastructure Performance Validated in Columbia University Study, Research Heads to NeurIPS