The route differs by jurisdiction, and the first question is always which forum is actually effective locally rather than which is theoretically available.
Across most of Southeast Asia three channels exist in some form — administrative complaint, civil action, and customs seizure — but their relative usefulness varies widely. In some jurisdictions administrative action is fast and cheap and does most of the work; in others it is of limited practical use and civil proceedings are the main route to real remedies. Criminal referral is available in several jurisdictions for counterfeiting at scale.
E-commerce platform takedowns operate largely independently of all three, under the platforms' own rules and evidence standards, and are frequently the fastest route to stopping a listing — though not to recovering anything.
A regional enforcement programme is normally built by ranking jurisdictions by commercial exposure rather than by legal convenience, then choosing the channel per jurisdiction. Chang Tsi & Partners coordinates this across the Southeast Asian jurisdictions listed above from its Asia Hub team, with Singapore and Hong Kong acting as the regional bases.