Check here:
https://www.asiamiles.com/am/en/site/terms#12
Tickets for Airline Award Travel may be re-issued:
only for travel by the same person
provided no part of the ticket for Airline Award Travel has been used
subject to additional Mileage Credits being required if the new journey belongs to a higher award zone
USD40 or 4,000 Mileage Credits will be charged for ticket re-issuance.
subject to having the same expiry date as the original ticket and for use on the same airline
Once tickets for Airline Award Travel are issued, they are non-transferable and non-refundable.