Prioritize 3PLs with direct access to the Port of Tianjin, bonded and FTZ warehousing, on-site customs clearance options, and integrated rail-to-road links. Verify established carrier contracts for ocean, rail (China-Europe), express couriers, and domestic TL/LTL networks to ensure predictable lead times and rate stability.

Export/import throughput benefits from bonded warehousing and FTZ processing that reduce customs dwell. 3PLs with in-house customs brokerage and consolidated LCL services can shorten door-to-door timelines, improving SKU velocity for eCommerce and reducing inventory carrying for B2B buyers.

Require SLA metrics for order accuracy, pick-and-pack cycle time, same-day/next-day cutoffs, return processing TAT, and inventory accuracy. Assess WMS integration options, slotting strategies, peak-season scalability, and dispute resolution processes to maintain consistent customer experience.

Include port handling, customs duties, bonded storage fees, inland haulage to primary demand centers (Beijing, Hebei), rail or air uplift where applicable, and carrier access premiums. Also factor in inventory carry, value-added services (kitting, labeling), and seasonal peak surcharges for an accurate per-order landed cost.