So some students in HKG (or come back from oversea to HKG) if target for competitive courses in HKG like medicine/Dental Surgery or GBUS may take IAL in order to get the top grades (can re-sit Jan/May/Jun/Oct for the best grades before cash in for the final grades in the official final result certificate)
Students studying for an IAL can resit individual units due to the flexible and modular natureof the qualifications. If students resit, this will not be indicated on the results statement.
https://qualifications.pearson.com/content/dam/pdf/Support/services/progress-to-university/international-a-level-and-a-level-guidance-for-universities.pdf