https://www.reuters.com/article/us-pinduoduo-ipo/chinese-online-group-pinduoduo-targets-up-to-1-63-billion-in-u-s-ipo-idUSKBN1K62GB >Chinese online group discounter Pinduoduo is planning to raise up to $1.63 billion from a U.S. listing, its latest filing with the U.S. Securities and Exchange showed, in what will be one of the biggest U.S. float by Chinese firms in four years.