BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TYPO3/NONSGML News system (news)//EN BEGIN:VEVENT UID: news-37521@en.enl.uoa.gr DTSTAMP:20221130T145513Z DTSTART:20221205T120000 DTEND:20221205T120000 SUMMARY:Sustainable chemistry concepts for closing circular economy loops END:VEVENT END:VCALENDAR