The key question is whether the bag is made from strips or the like of plastics (which would pull it into Chapter 39 as a plastics article) versus textile-like woven fabric. CBP General Rule of Interpretation 1 and relevant chapter notes govern: if the strips are of a width not exceeding 5 mm and the article is essentially a plastics product, Chapter 39 typically applies. A licensed customs broker can help evaluate the specific construction.

Yes. Plastic sacks and bags of non-ethylene polymers originating in China are subject to Section 301 tariffs. Importers should verify the current list and any applicable product exclusions with a licensed customs broker, as the scope and rates have been subject to periodic revision.