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Sustainability

Imerys launches industrial-scale production of bio-based synthetic graphite

| By Mary Bailey

Imerys Graphite and Carbon Switzerland Ltd. (IGC; Bodio, Switzerland), a subsidiary of Imerys S.A. (Paris, France), announced a breakthrough with its SU-NERGY™ graphite line: its first industrial-scale graphite with a significantly reduced climate impact.

Made using biomass-based feedstock, this next-generation synthetic graphite targets a “cradle-to-gate” climate impact below 0.1 kg CO₂e/kg. This advancement marks a significant milestone in the industrial-scale production of carbon materials and sets a new reference point for climate performance.

In 2025, Imerys Graphite and Carbon successfully introduced SU-NERGY™, achieving up to 60% reduction in CO₂ emissions compared to traditional synthetic graphite. Building on this milestone, the company has now further advanced its proprietary manufacturing technology at its cutting-edge facility in Bodio, Switzerland. By combining biomass residues and 100% low-carbon electricity, the new process further reduces the carbon footprint of synthetic graphite.

The latest SU-NERGY™ graphite maintains the technical performance of the previous generation while further reducing its carbon footprint. Its catalyst-free manufacturing process offers a lower-carbon solution for advanced mobility, energy storage, and other high-tech industries.

Scanning Electron Microscopy images of SU-NERGY™ graphite

Scanning Electron Microscopy images of SU-NERGY™ graphite (Source: Imerys)

“When we launched the SU-NERGY™ series last year, we promised it was just the beginning of our journey to reshape the graphite landscape,” said Frank Wittchen, vice president and general manager, Graphite & Carbon Division at Imerys. “This innovation serves as a crucial enabler for our customers. It helps them meet their decarbonization targets while securing a localized, resilient European supply chain.”

The industrial-scale production of SU-NERGY™ graphite reflects Imerys’ commitment to developing innovative solutions that address future industrial and environmental challenges, use alternative resources, and reduce the climate impact of its manufacturing processes.