Partnership expands DevvStream's pipeline with efficiency-based environmental assets and shared energy-savings revenue

Calgary, Alberta - Newsfile Corp. - June 23, 2025 - DevvStream Corp. (NASDAQ: DEVS), a leading carbon management firm specializing in the development, investment, and sale of environmental assets, today announced a carbon-management agreement with Energy Efficient Technologies ("EET"). EET is an engineering firm that reduces electricity use in commercial buildings by an average 8%-35% and has validated savings for numerous large-scale clients, including a global hospitality group operating more than 8,000 hotels across more than 130 countries, the world's largest quick-service restaurant network, and one of the world's largest brewing companies, with flagship beer brands sold in over 100 markets. Deal highlights

• Two revenue streams. Pursuant to the agreement, DevvStream will receive revenue from EET's carbon credits and international renewable energy certificates ("I-RECs") and share in verified utility-bill savings.
• New vertical. Adds building-efficiency assets to DevvStream's hydro, solar, waste-to-energy, carbon-capture, and biogas portfolio of projects and partners.
• Large addressable market. EET estimates that deploying its CryoGenX4™ across 8,000 data centers could save (US) $20 billion in power costs, cut 166 billion kWh, and avoid 117 million tonnes of CO₂ per year—showing the scale DevvStream can help monetize.
• Growing demand. Companies seeking scope-2 reductions increasingly view energy-efficiency credits as a cost-effective decarbonization path.

"We believe EET's proven record of double-digit energy savings positions us to unlock a high-value stream of efficiency-based credits and cost-sharing revenue," said Sunny Trinh, CEO of DevvStream. "By layering shared savings on top of carbon- and I-REC monetization, we anticipate further diversifying DevvStream's income while helping businesses cut costs and emissions." "Energy Efficient Technologies has delivered—and independently verified—double-digit energy-use reductions for clients such as Marriott, McDonald's cold-chain distribution network, Anheuser-Busch, and Cogent Communications data centers," said Joe Mearman, CEO of EET. "DevvStream's transparent credit-certification process and global buyer reach provide a trusted pathway to convert those proven savings into high-integrity carbon credits and I-RECs, allowing our customers to capture additional environmental and financial value while we remain focused on engineering efficiency at scale." About DevvStream Founded in 2021, DevvStream is a leading carbon management firm specializing in the development, investment, and sale of environmental assets, energy transition, and innovative carbon management solutions. The Company's mission is to create alignment between sustainability and profitability, helping organizations achieve their climate initiatives while directly improving their financial health. With a diverse approach to energy transition and carbon markets, DevvStream operates across three strategic domains: (1) an offset portfolio consisting of nature-based, tech-based, and carbon sequestration credits for immediate sale to corporations and governments seeking to offset their most difficult-to-reduce emissions; (2) project investment, acquisitions, and industry consolidation to extend the company's reach, allowing it to become a full end-to-end solutions provider; and (3) project development, where the company serves as project manager for eligible activities such as EV charging or renewable energy generation in exchange for a percentage of generated credits or I-RECs. For more information, please visit www.devvstream.com. About Energy Efficient Technologies Since 1988, the Energy Efficient Technologies team has been passionate about helping the environment. The company's employees began as contractors working with the United States Navy, helping to automate the energy and control systems of nuclear submarines, warships, and aircraft carriers. Their work allowed personnel to focus on their primary tasks, while reducing energy, fuel usage, operation and maintenance costs and improving reliability and survivability. Today, Energy Efficient Technologies has become an industry leader through its continued research and applications. The company's goal is to help every client reduce their carbon footprint while becoming more energy efficient and profitable. Learn more at www.esquaredt.com. Cautionary Note Regarding Forward-Looking Statements Certain statements in this news release may be considered forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that are not historical facts and generally relate to future events, trends or DevvStream's future financial or other performance metrics. In some cases, you can identify forward-looking statements...