Verify direct port calls, transshipment links to major Asia-Pacific hubs, availability of bonded or free-zone storage, container yard capacity, and on-dock handling. Also confirm carrier frequency, feeder services, and inland connectivity to your primary markets to minimize dwell time and reduce total landed cost.

Assess WMS features (real-time inventory, SKU-level visibility), API connectivity for order routing and shipping carriers, SLA-backed pick-and-pack accuracy, returns processing, and support for kitting or value-added services. Request performance metrics and a technology integration plan before contracting.

Key cost drivers include port handling charges, bonded storage fees, local labour rates, customs brokerage costs, and feeder service premiums. Model total landed cost (not just warehouse rent) including dwell time, intermodal moves, and duty deferral benefits to compare providers effectively.

Ensure the 3PL provides experienced customs brokerage, accurate HS code management, bonded warehouse operations if needed, export documentation support, and clear procedures for inspections. Confirm they can manage compliance for both small‑parcel eCommerce and larger commercial shipments to avoid delays.