How Hong Kong Sanctions Could Threaten Wall Street

Citigroup Inc., JPMorgan Chase & Co., HSBC Holdings Plc and their peers face a threat to their massive expansion plans in China from a U.S. move that would sanction Chinese and Hong Kong officials involved in imposing a national security law on the former British colony. Wall Street and their European rival’s push for Chinese riches could be further imperiled should China retaliate.