Persian lime production is heavily concentrated in Mexico, making US supply sensitive to weather events, disease pressure (particularly citrus greening), and logistical disruptions along a single corridor. This geographic concentration means even short-term supply shocks in key Mexican growing regions translate quickly into US market price volatility.

Fresh grapefruit is classified in HTS Chapter 8 (Edible Fruit and Nuts). The specific 10-digit tariff line depends on variety and whether the fruit is fresh or dried; importers should consult the current HTS schedule or a licensed customs broker to confirm the applicable subheading and any seasonal duty provisions.