GPC, my understanding is that if you have an ongoing contractual relationship with another party their would be no restriction on communication. Therefore as paid members of the Trust it would be unnecessary for the board to obtain permission to send emails or similar communications to its membership, at least that’s my interpretation.
You may know better than me.....you say "paid members".....the majority of those paid life membership fees many years ago, before the advent of electronic mail. Permission of some sort has to be sought.....and as I said we certainly have had GDPR forms sent to us in the last couple of years (I say us because when I received the AGM notification I was not on the board at that time)