Dr. Mahinsasa Rathnayake (Senior lecturer of Department of Chemical and Process Engineering) had been invited as the speaker of Pre-Conference Webinar No.3 of International Research Conference of SLTC 2022. The theme of the webinar is “Sustainable Biofuels in Circular Economy” covering research-based knowledge from the basics of biofuels production in order to identify sustainable biorefining routes with associated circular economy approaches.