The Shanghai stock exchange said in a statement that Mr Ma, Ant’s founder, had been called in for “supervisory interviews” and said there had been “other major issues”, including changes in “the financial technology regulatory environment”.
“This material event may cause your company to fail to meet the issuance and listing conditions or information disclosure requirements,” the exchange said. “Our exchange has decided to postpone the listing of your company.” It told Ant and its underwriters to make an announcement about the suspension.
https://www.ft.com/content/c1ee03d4-f22e-4514-af46-2f8423a6842e