[With tighter grip, Beijing sends message to HK tycoons: fall in line] As Beijing seeks to tighten its grip over Hong Kong, it has a new mandate for the city’s powerful property tycoons: pour resources and influence into backing Beijing’s interests, and help solve a potentially destabilising housing shortage. Chinese officials delivered the message in closed meetings this year amid broader efforts to bring the city to heel under a sweeping national security law and make it more “patriotic,” according to three major developers and a Hong Kong government adviser familiar with the talks. “The rules of the game have...