Hong Kong is set to impose a complete ban on e-cigarettes and other new tobacco products in an unexpected U-turn by the government, which had previously proposed only to restrict their sale to minors. The initiative will be announced by Chief Executive Carrie Lam Cheng Yuet-ngor in her policy address on Wednesday, as she responds to myriad social concerns with nearly 250 initiatives aimed at tackling issues such as housing, land supply, health care, welfare and livelihood.