Hi, I am thinking that this should be an opt-in rather than opt-out for GDPR compliance. However it is difficult to accomplish in my opinion... So opt-out can be really a compromise here.
We can tell the attendees we are giving such info to these agencies. I will ask MEET TAIWAN next week if having initials and nationality per person is sufficient for their requirements. Such as: "Y. W.", "Taiwan" "C. C.", "Taiwan" etc. Also along with the (partial) list of attendees, we can give statistics of nationality to them to further telling them we have such many people. (Though, I asked MEET TAIWAN and they don't accept us giving statistics *instead of* list of attendees.) Yao Wei Sending the email again because mailing list considering my email spam.
