| Web | Kontaktní e-mail | Poznámka |
| https://www.biochar-industry.com/ | info@biochar-industry.com | V4 Biochar platform is a member of the European Biochar Industry Consortium (EBI) since 2022. |
| Web | Kontaktní e-mail | Poznámka |
| https://www.biochar-industry.com/ | info@biochar-industry.com | V4 Biochar platform is a member of the European Biochar Industry Consortium (EBI) since 2022. |
| Web | Kontaktní e-mail | Poznámka |
| https://biochar-international.org/ | info@biochar-international.org | V4 Biochar platform is a member of the International Biochar Initiative (IBI) since 2022. |