Two major Hong Kong supermarket chains have imposed a quota on essential goods such as rice and toilet paper following a surge in demand amid the third wave of Covid-19 infections, though some customers said they were not too worried about another round of panic buying.Wellcome and ParknShop, each having more than 250 outlets across the city, said a temporary restriction would be imposed on the sale of the essential goods in their branches, with each customer being allowed to buy only two items…
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