Delivery Hero SE shares fell the most in two weeks in the first day of trading after Taiwan blocked the sale of its subsidiary there to Uber Technologies Inc.

Taiwan has blocked Uber Technologies’ planned takeover on anticompetition concerns, thwarting the U.S. company’s efforts to expand in Asia.

M purchase of Delivery Hero’s (DLVHF) Foodpanda business over concerns it would be anti-competitive, Reuters reports. Delivery Hero said in a statement Uber may appeal the commission’s decision or terminate the acquisition.