1, follows complaints that companies misused or sold customers’ data without their knowledge or permission, leading to fraud or unfair practices such as charging higher prices to some users. The law curbs what information companies can gather and sets standards for how it must be stored.... Tencent sank after the announcement but ended up 1 per cent.... Pinduoduo, an online grocer, was down 1.2 per cent in premarket trading on the U.S.-based Nasdaq. The law is similar to Europe’s General Data