Question regarding alliance

As two holdings under one account cannot do any transactions or interlines, what about the alliance? Can they join the same alliance? Or this is not allowed neither?

Thanks in advance for advice.

I think there are no limitations there, since the alliance function, at the moment, doesn’t give you any benefits, other than having an in-game method of communicating with other members.

If, at some point in the future, the alliance feature includes cooperation, then chances are that separate holdings from the same account will no longer be allowed to be a member of the same alliance. But that’s very much undetermined, since development of alliance functions isn’t a priority at the moment.