Dr. Elias Feghali has spent 2 months at the National Renewable Energy Laboratory in Golden Colorado in the team of Dr. Gregg Beckham. This research stay was funded through The Research Foundation - Flanders (FWO) grant for a long stay abroad. During his stay, Dr. Feghali worked on the development of new methodologies for lignin valorization. In addition, this visit aims to build bridges between both institutes for further collaborations in different fields pertaining to sustainable polymer materials.