If we are discounting our two founders there is a decent amount of bulls we have that are. First and foremost, the Sydney bulls don't hold much value; they have relations in both regions. But aside from them, Luk Chai for starters would be a great candidate being a son of two founders unrepresented in both regions; same goes for his full younger brother, Sabai.
The other two bulls, Pathi Harn and Roi Yim, are both descended from the Bong Su line (so related to Ongard, a bull already in the US).In saying that it wouldn't hurt for those regions to gain additional representation considering they're unrelated otherwise.
In order of value, it would look something like: Putra Mas, Gung, Luk Chai/Sabai, Roi Yim, Pathi Harn, Kavi/Ashoka
The most genetically valuable bulls we have are the ones the region will undoubtedly want to retain:
Putra Mas (1989) - founder
Gung (2000) - founder
Pathi Harn (2010) - first generation, only son of Bong Su in region
The least genetically valuable bulls are the ones other regions are unlikely to want (case in point, Europe sent them to us):
Kavi (2014) - well represented line globally
Ashoka (2014) - well represented line globally
The middle range bulls are the most suitable candidates for export:
Luk Chai (2009)
Sabai (2016)
Roi-Yim (2022)
After siring one more cohort of calves at Werribee, Luk Chai will be retired from breeding. Sabai has next to no application to the breeding programme (full brother of Luk Chai); and Roi-Yim is similarly descended from a total of four founders, yet would be genetically valuable overseas, where his only relation in North America is his mother’s half brother, Ongard.