The 209 that SK is offering the Philippine Navy has already been successfully marketed to Indonesia as the Nagapasa class aka "Improved Chang/Jang Bogo".
Note: South Korea confusingly has multiple names and spellings for all of its weapon systems. Hence, the US DIA needs to establish a NATO style designation system for SK weapons, including subs.
This SK DSME offer is, of course, competing with Naval Group's longer term campaign to offer a small Scorpene variant to the Philippines.