March is never easy for import and export companies in Shenzhen under COVID-19 restrictions & huge increasing demand for global trading. Meanwhile, municipal government tried its best to spot the difficulties and took a lot of practical measures to maintain the business going smoothly. Those measures include ensuring the logistic supply on the road, proper container releasing plan, adequate human resource in the port, etc. The import and export is one of the most important engine for China's economy and expected to remain the critical role on 2022.