Delta Upsilon of the Philippines is a relatively young group as well (founded June 22, 2004).
If Delta Upsilon of North America were to require as part of legal affiliation (either as a separate "National" or as part of them) that all members in the Philippines by someone already in Delta Upsilon and was willing to help make that happen, I think it could be made to work. This could be done by either initiating some of the DU-Phil alumni in North America or by having a group from the DU North America National Board/National go over to the Philippines.
From a quick scan of the ritual, it appears that it could be done with only 3 members of DU-Phil being properly initiated, but that's just reading it. (And I'm sure it would be better if done by more)
Also, I notice that the ritual mentions the United States and Canada specifically, DU may actually have to change their ritual to properly sew up all of the loose ends...
