It is all written on the SID which can be found
here.
Note 3 specifies "adhere to maximum speed limits where specified by waypoint constraints", so on the SAM3Z points KKE05 and KKE09 must be crossed at 220kts or less, and then KKW19 at 250kts or less. The points after KKW19 have no speed constraints, however Note 4 states "Maximum 250 KIAS below FL100 unless authorised by ATC". Basically, after passing KKW19 AND above FL100, there is no speed restriction. I have been told that all this information isn't in the FMS so unless the pilot manually intervenes, the aircraft will keep 250kts all the way to SAM regardless of level due to the SID ending at SAM at 4000', so the 250kts below FL100 is still in force and the FMS doesn't override this when passing FL100.