DNV Certifies Arca’s Ultramafic Tailings Mineralization Technique for Permanent CO₂ Removal

DNV Certifies Arca’s Ultramafic Tailings Mineralization Technique for Permanent CO₂ Removal

(IN BRIEF) Arca’s carbon mineralization method—pairing enhanced air capture with ex-situ ultramafic tailings mineralization—has become the first of its kind to secure ISO 14064-2 validation from DNV. This independent audit, covering technical documentation and stakeholder interviews, confirms that the process meets international standards for verifiable CO₂ removal. The validation underscores the potential for permanent, gigatonne-scale sequestration at mine sites and sets a new precedent for the CDR industry. DNV’s Lucy Craig and Arca’s Dr. Greg Dipple emphasize the milestone’s significance for broadening high-integrity carbon removal methods and for offering the mining sector a clear pathway to contribute to global decarbonization efforts.

(PRESS RELEASE) BÆRUM, 24-Jun-2025 — /EuropaWire/ — DNV, the independent energy expert and assurance provider, has officially validated Arca’s pioneering methodology for permanent carbon dioxide removal. This ISO 14064-2–compliant endorsement marks the first time a process combining enhanced air capture with ex-situ mineralization in ultramafic mine tailings has achieved such recognition, setting a new industry benchmark in Carbon Dioxide Removal (CDR).

As global demands for high-integrity carbon removal grow, Arca’s methodology underwent a comprehensive third-party audit by DNV, which examined technical design documentation and conducted follow-up interviews. Their findings confirm that Arca’s approach meets stringent ISO criteria—demonstrating that scalable, permanent CO₂ sequestration at mining sites can be transparently verified. Further details are available at www.arcaclimate.com.

Lucy Craig, Senior Vice President and Director of Growth, Innovation and Digitalization for Energy Systems at DNV, remarked: “By validating Arca’s enhanced air capture and ultramafic tailings mineralization process, we prove that diverse CDR pathways can achieve ISO standards. This milestone paves the way for gigatonne-scale CO₂ removal and opens a major sustainability opportunity for the mining industry.”

Arca, which advocates for independent verification and rigorous registry protocols, plans to leverage this validation to help shape new formal standards for industrial-scale carbon removal. “Our patent-pending technology locks away atmospheric CO₂ safely and permanently, with gigatonne-scale potential,” said Dr. Greg Dipple, Head of Science and Co-founder at Arca. “ISO validation not only confirms our approach but highlights a multibillion-dollar opportunity for miners to advance net-zero goals.”

About DNV
DNV is an independent assurance and risk management provider, operating in more than 100 countries. Through its broad experience and deep expertise DNV advances safety and sustainable performance, sets industry standards, and inspires and invents solutions.

Whether assessing a new ship design, qualifying technology for a floating wind farm, analyzing sensor data from a gas pipeline or certifying a food company’s supply chain, DNV enables its customers and their stakeholders to manage technological and regulatory complexity with confidence.

Driven by its purpose, to safeguard life, property, and the environment, DNV helps its customers seize opportunities and tackle the risks arising from global transformations. DNV is a trusted voice for many of the world’s most successful and forward-thinking companies.

In the energy industry
DNV provides assurance to the entire energy value chain through its advisory, monitoring, verification, and certification services.  As the world’s leading resource of independent energy experts and technical advisors, the assurance provider helps industries and governments to navigate the many complex, interrelated transitions taking place globally and regionally, in the energy industry. DNV is committed to realizing the goals of the Paris Agreement, and supports customers to transition faster to a deeply decarbonized energy system.

About Arca
Arca is a leader in carbon mineralization technology, leveraging industrial waste to remove CO2 safely and permanently. By operating on the existing footprints of large-scale industrial operations, Arca’s has gigatonne-scale potential while maintaining an ultralight footprint.

Learn more at https://arcaclimate.com/

Media Contacts:

Neil James Slater
Head of Media Relations, Energy Systems
Phone: +442038165702
contact.energysystems@dnv.com

Penda Sall
Media Relations Advisor
Phone: +33 651 69 88 64
contact.energysystems@dnv.com

SOURCE: DNV