(Bloomberg) — Chinese companies are listing in the U.S. at the fastest pace ever, brushing off tensions between the world’s two biggest economies and the continued risk of being kicked off American exchanges.Firms from the mainland and Hong Kong have raised $6.6 billion through initial public offerings in the U.S. this year, a record start to a year and an eightfold increase from the same period in 2020, data compiled by Bloomberg show. The largest IPO is the $1.6 billion listing of e‑cigarette maker RLX Technology Inc., followed by the $947 million offering of software company Tuya Inc.That’s …