By Julie Zhu, Kane Wu and Scott Murdoch
HONG KONG (Reuters) - Goldman Sachs has joined the growing list of investment banks working on Chinese financial technology firm Ant Group's mammoth initial public offering of up to $30 billion, two people with direct knowledge of the matter said.
Ant, backed by Chinese e-commerce giant Alibaba Group <9988.
HK>, plans to list simultaneously in Hong Kong and Shanghai, in what sources have said could be the world's largest IPO and come as soon as October.
Wall Street major Goldman.