Is the following route permissible under the terms of the Circle Explorer? The purpose is to visit SA, Oz and HK on one trip, not to gather miles.

GIB-LHR-JNB-DUR-JNB-PER-SYD-AYQ-CNS-SYD-HKG-LHR-GIB.

Specifically is the JNB-PER route allowed as it is SAA metal for QF codeshare.

Thanks.