Duty rates and import rules vary by destination and change, so this is about what to check and who to ask rather than a rate table — any published rate here would be wrong somewhere.
Classification comes first
Your duty rate follows the commodity code your goods are classified under, and fabric pouches can plausibly fall under more than one depending on material composition and construction. The classification is your responsibility as importer, and getting it wrong is expensive in both directions — underpaid duty is recoverable by the authority for years afterwards.
Confirm the intended classification with your customs broker before you order, using the actual material composition. If composition changes during specification — a fabric substitution, a lining added — re-check it, because it can move the code.
Composition documentation
You will usually need the fibre composition stated accurately. Ask for it in writing as part of the order documentation rather than at shipping stage, and make sure it matches what was actually used. A composition statement that does not match the goods is a compliance problem, not a paperwork problem.
Country of origin marking
Most destinations require origin marking, and the rules about where it appears and how permanent it must be are destination-specific. This affects the product — it may mean a label sewn into a seam — so it has to be decided before sampling, not before shipping.
Testing and restricted substances
Depending on destination and end use, textile goods can be subject to restricted-substance requirements. Where the packaging is sold with a consumer product, or is itself a consumer product, the requirements can be stricter.
Ask your supplier what test reports they already hold — RoHS test reports are on file here — and confirm with your own compliance contact whether those cover what your destination requires. They may not, and the gap is better found before production.
If the packaging carries a claim
Any claim printed on pack — recyclable, organic, a certification mark — brings its own substantiation requirements, and those tend to be enforced. Do not commit a claim to artwork until you have confirmed you can evidence it for the market you are selling in.
Who to ask
A customs broker in the destination country, before ordering rather than at arrival. The cost of the conversation is trivial next to the cost of a held shipment, and brokers answer classification questions routinely.