Dr. René Herrera Díaz is a MC member from Slovenia of the COST Action CA22155 – Network for forest by-products charcoal, resin, tar, potash (EU-PoTaRCh). EU-PoTaRCh-establishes a network for the past, present and future of use of major non-timber forest raw materials and products in Europe. Whilst it will focus on forest by-products mainly Potash Tar Resin Charcoal (PoTaRCh)–as representatives of traditional forest exploitation heritage, it will touch upon other forest by-products (tannins, pitches).