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"Every day I had lots of customers phoning in to ask where their parcels were and I had to go through different carriers' websites to check. E-commerce platforms didn't have the capability to collect tracking information from hundreds of carriers flying around the globe. I had to employ over 10 staff just for customs-related services and the cost of labor was high."

"Development of drugs and vaccines are still underway and it is hard to predict if and when they become available."

"Developments in Sino-US trade frictions may cause fluctuations in cross-border flows, but the influence should be limited as market participants have got used to twists and turns in trade talks," Liu added.

"During the period, China has accumulated much experience and learned many lessons," she said.

"During the president's Chinese visit, we signed a Memorandum of Understanding with Chinese firms to supply the products in the neighboring market," Vinamilk's spokesperson said.