0303.43.00.00 - Skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis)

This HTS classification, 0303.43.00.00, specifically covers frozen skipjack tuna, also identified scientifically as *Katsuwonus pelamis* or by its common name, stripe-bellied bonito. These fish are presented in a frozen state and fall under the broader category of frozen fish, excluding fish fillets and other fish meat classified under heading 0304.

Distinguishing this code from its siblings, we find that 0303.43.00.00 is dedicated solely to skipjack tuna. This differentiates it from other tuna species such as albacore (0303.41.00.00), yellowfin (0303.42.00), bigeye (0303.44.00.00), and various bluefin tunas (0303.45.01 and 0303.46.00.00), all of which are classified under distinct subheadings within the 0303.4 group. The key classification criterion here is the species of tuna.

As this is a leaf node in the HTS structure, there are no further subdivisions. Therefore, the classification at 0303.43.00.00 is definitive for frozen skipjack tuna. Importers and exporters should ensure accurate identification of the species to ensure correct customs declaration and duty assessment.