Hong Kong political heavyweights and former leaders gathered on Friday to pay tribute to late commerce minister Gregory So Kam-leung, as family and friends honoured his devotion to public service. Among those who attended the memorial ceremony for So, who died on December 13, were former city leaders Donald Tsang Yam-kuen and Leung Chun-ying, along with senior government officials and veteran politicians. “We mourn the loss of a dear husband, loving father and grandfather, trusted friend and...