China’s e-commerce hub of Yiwu, a key sourcing centre for low cost goods, continues to cause disruptions to trade flows after thousands of e-commerce merchants suspended deliveries when the city went into a Covid-19 lockdown just over a week ago. One out of every 10 parcel deliveries in China in July came from Yiwu in eastern Zhejiang province, according to government data, but that dried up in early August because of an outbreak of the Omicron variant. Local authorities issued a notice on August 4 asking residents not to leave the city, and a week later a strict citywide lockdown...