Through his work as a process engineer in wastewater treatment, Mattias Gustafsson discovered pyrolysis and biochar in his search for alternative treatment methods in 2009. Together with his colleague Lotta Ek, Mattias started the first biochar consultancy firm, EcoTopic, in 2012. For the past 11 years, Mattias has supported organizations in starting production and use of biochar, developed regulations and certification systems, and built the industry both in Sweden and internationally. Mattias is one of the founders of the Swedish biochar association, was project manager for the Stockholm Biochar Project and technical expert for Bloomberg Philanthropies in supporting urban biochar projects in Europe and the US.