[China clarifies rules for overseas IPOs in US What we don’t know.] Traders work during the IPO of Chinese rideshare company Didi Global Inc on the New York Stock Exchange (NYSE) floor in New York, United States on June 30, 2021. Brendan McDermid | Reuters BEIJING Six months after the Chinese IPO rush in the United States has dried up, many details remain unknown to companies wishing to pursue such international listings.…