To sum up the announcement: SDV north is about 95% in Catamarca...

To sum up the announcement:

SDV north is about 95% in Catamarca and about 5% (probably less) in Salta. Look at the map with the POSCO and GXY lines drawn and the boundary line for Catamarca and Salta.

Catamarca transfer was already completed in 28 December.
Salta transfer was the one held up ... which again is about 5% or less of the tenements.

The way I understand it, POSCO now legally owns (since 28 December 2018) the 95% of SDV north as it has been recorded in Catamarca courts .... so no way would POSCO back out.

IMO, with the benefit of hindsight, GXY should have have requested two payments:
1) 95% when Catamarca have registered the transfer.
2) and the remaining 5% when Salta have registered the transfer.

Kinda like your property being split with 95% in NSW and 5% in QLD ...with each state having their own legalities / land title court.