https://www.reuters.com/article/us-pinduoduo-ipo/chinese-discounter-pinduoduo-aims-for-up-to-1-63-billion-in-us-ipo-idUSKBN1K62GB >Chinese online group discounter Pinduoduo plans 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 would be the second-biggest U.S. float by a Chinese firm this year.