BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210613T000000Z DTEND:20210613T000000Z SUMMARY:25th Annual Green Chemistry & Engineering Conference: Standard registration deadline due before 13th June 2021 LOCATION:Online,N/A,United States END:VEVENT END:VCALENDAR