A freight train bearing containers heads to Ningbo-Zhoushan Port for customs clearance and shipping from Yongkang, East China's Zhejiang Province, on April 27, 2022. Yongkang, a global hub for hardware production, started rail-sea intermodal transportation in September 2021. This combined service saves about 1,000 yuan ($153) on transport costs per container. Photo: VCG