Onterris Releases 2025 Sustainability Report, Demonstrating Progress Towards Climate Goals and Strengthening Long-Term Resilience

Onterris Releases 2025 Sustainability Report, Demonstrating Progress Towards Climate Goals and Strengthening Long-Term Resilience

Highlights 2025 performance and actions advancing 2040 net-zero commitment

Onterris (NYSE: ONT), a global environmental solutions company solving complex challenges for planet and progress, today published its 2025 Sustainability Report, showcasing measurable progress across its sustainability priorities. The report provides an overview of the Company’s approach to environmental stewardship, its commitment to building a talented and engaged workforce and the governance framework supporting responsible business practices and long-term value creation.

In 2025, Onterris made accelerated progress toward its Science Based Targets initiative (SBTi)-validated commitment to achieve net-zero greenhouse gas (GHG) emissions across its value chain by 2040. The Company reports a 31% reduction in its combined Scope 1 and market-based Scope 2 GHG emissions from its 2022 base year, moving closer to its 2030 near-term target of 42% reduction. The Company also surpassed its 2030 Scope 3 GHG emissions reduction target of 42%, reporting a 52% reduction in targeted emissions from its 2022 base year. Additional 2025 highlights include:

• Procuring renewable energy equivalent to 46% of purchased electricity in the U.S., supporting the transition to a lower-carbon economy.
• Reducing vehicle-related fuel use through fleet optimization, contributing to a 21% reduction in gasoline and diesel consumption from 2024.
• Completing a climate risk assessment aligned with TCFD recommendations to strengthen long-term business resilience.
• Expanding employee development programs, improving employee retention and deploying new fleet telematics technology to support safer driving and injury prevention.
• Continuing strong Board oversight of sustainability and strengthening governance practices that promote accountability and transparency.

"Our sustainability strategy is about delivering measurable results," said Vijay Manthripragada, President and Chief Executive Officer. "In 2025, we made meaningful progress toward our climate goals, strengthened our operations and invested in our people, while continuing to help clients solve environmental challenges through science, innovation and expertise."

Read the full 2025 Sustainability Report here.

About Onterris

Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected. Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and help protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress. For more information, visit Onterris.com.

Investor Relations:
Adrianne Griffin
Senior Vice President, Investor Relations & Treasury
(949) 988-3383
ir@onterris.com

Media Relations:
Lauren Dowling
Senior Vice President, Marketing & Communications
(214) 514-9809
pr@onterris.com

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