Care to tell us if it's an OPS SPEC or Foreign AOC that permits you to operate into / out of Malaysia? The fact is that some countries require a FAOC, others not, sometimes it depends on how many times you visit etc.
Malaysia (CAAM) requires a FAOC validation for operators.
https://www.caam.gov.my/wp-content/u...-6005-FAOC.pdf
USA (FAA) requires a DOT approval certificate with OpsSpec compliance.
EU (EASA) requires a TCO FAOC validation.
They all amount to the same thing, a document that spells out how you will comply with local regulations, DG requirements and various other things, which in Australia is basically an AOC.