Latest C-Green News & Updates

See the latest news and media coverage for C-Green. We track all announcements, press releases, and industry mentions in real time, all in one place.

C-Green

Hydrothermal carbonization technology provider for wet biowaste

c-green.se

Headquarters: Solna, Sweden
Founded year: 2015
Company type: Private company
Number of employees: 16–50
Industry: Renewable Energy Equipment & Services

Last updated August 26

Latest news about C-Green

In short: C-Green upgraded its Heinola HTC plant, secured funding, and expanded into EU research and India.

Company announcements

December 31, 2025 C-Green

C-Green raises funding and advances technology validation

C-Green secured SEK 14M for the Heinola plant upgrade, advanced partnerships in Europe and India, and reported a loss of 13.4 MSEK in H2 2025.

March 12, 2024 C-Green

C-Green leaves board report with financial results and plans

The company reports a loss for 2023, paused projects and plans new share issue and capital raising during the first half of 2024.

January 9, 2023 C-Green

C-Green and Ragn-Sells collaborate on circular sludge management

They plan 8–10 biorefineries, the first outside Norrköping will be operational in 2023 with support from the Swedish Energy Agency of 40 MSEK.

November 21, 2022 C-Green

C-Green reports financial results and operational events

The company shows a loss but improved cash flow through emissions. The operation of the biorefinery will be taken over by Stora Enso from October.

Media coverage

August 26 Dagens industri

C-Green selected as industrial partner in EUR 9 million research initiative

C-Green AB has been selected as an industrial partner in Infinity Fiber, an eight-year, EUR 9 million research initiative to ...

May 11 Dagens industri

C-Green upgrades its full-scale plant in Heinola to next-generation HTC technology

After several years of operational experience and development, C-Green is now upgrading the plant at Stora Enso's Heinola Fluting mill, where sludge...

November 3, 2025 Dagens industri

C-Green takes the next step in PFAS mapping in the conversion of sludge to biochar

Over the past year, C-Green has investigated how PFAS-contaminated sludge behaves in HTC processes. The results provided important insights into the occurrence and behavior of various PFAS compounds...

May 12, 2025 Dagens industri

C-Green AB launches a new generation of HTC technology for sludge drying

C-Green's updated HTC technology builds on our proven solution, but now offers higher energy efficiency, lower operating costs and a more robust process. The streamlined operation provides...

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