BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20231120T000000Z DTEND:20231120T000000Z SUMMARY:Chemical feedstocks for sustainable industry: Standard registration deadline due before 20th November 2023 LOCATION:The UU裸聊直播 of Chemistry,London,United Kingdom END:VEVENT END:VCALENDAR