Boliden and Tretau power Low‑Carbon electrification
- May 20
- 2 min read
Boliden and Tretau combine low-carbon copper and solvent-free magnet wire to support sustainable electrification.
Boliden’s Low-Carbon Copper reduces CO₂ emissions compared with the global industry average.
Tretau’s DryCycle® technology cuts coating-process emissions by an average of 65% versus conventional technologies.
Pianezza (Turin) – 20 May 2026 – Boliden and Tretau are strengthening the electrification value chain by combining responsibly produced Low‑Carbon Copper with high-performance magnet wire solutions. By aligning upstream responsible metal production with technological innovation, Boliden and Tretau enable more efficient and low-carbon electric machines and systems.
“Electrification requires not only more metals, but metals produced responsibly and used efficiently. By combining our Low‑Carbon Copper with advanced magnet wire technology, we create value for customers and customer’s customers who wants to reduce their carbon footprint. Without compromising on performance”, Daniel Asplund, Manager Sales Copper, Boliden, says.
Boliden’s Low‑Carbon Copper, part of the company’s Green Transition Metals portfolio, has a carbon footprint of 1.5 kg CO₂e per kilogram of copper, compared with a global average of approximately 4.0 kg CO₂e per kilogram. Produced using copper from Boliden’s own mines, the product supports customers in reducing emissions across the value chain, including Scope 3.
Tretau complements this with solvent‑free, high‑performance magnet wire, engineered to meet the growing demands of electrification. Its DryCycle® technology eliminates solvents from the insulation process, enabling resource-efficient manufacturing while maintaining thermal, electrical, and mechanical performance in electric machines.
The approach is based on a shorter, more energy-efficient coating process, resulting in a structurally lower carbon footprint per kilogram of magnet wire. The impact is most significant at the insulation and transformation stage, where emissions are, on average, 65% lower than those associated with legacy coating technologies, with variations primarily driven by technical specifications.
“Our mission is to revolutionize the wire industry through sustainable high‑performance solutions. When upstream responsible metal production meets downstream innovation, it accelerates electrification and delivers real climate benefits.”, says Francesco Taiariol, Co‑founder and CEO of Tretau.
About Tretau
Formerly known as Tau Group, Tretau is a global technology leader delivering next-generation insulated wire solutions for electrification. Its patented technologies combine the need for sustainable, resource-efficient production with the power, reliability and performance required by electric vehicles and machinery. This enables the production of smaller, durable, greener, and more powerful motors, transformers, and generators. Tretau specialized in low-impact protective coatings for high-performance copper, aluminum, and steel wires. For additional information, visit www.tretau.group and follow Tretau on X and LinkedIn.
About Boliden’s Green Transition Metals
Green Transition Metals is Boliden’s portfolio of recycled and low‑carbon metals, developed with full transparency on climate impact to support customers and industries in reducing greenhouse gas emissions. When calculating carbon emissions, Boliden conducts a Life-Cycle Assessment, with a cradle-to-gate approach that excludes any form of credits and offsets.
For additional information, visit Boliden – Metals for generations to come
