Hong Kong has overtaken South Korea and Japan to become the world leader in laying optical-fibre cable to homes and area networks, a study has found. The study, commissioned by the world's three councils on fibre-to-the-home (FTTH) in a bid to establish a global ranking for access to optical-fibre communications, has found that 21.2 per cent of homes in Hong Kong were serviced with high-speed optical fibre, mainly used for broadband internet connections. The rate was almost 10 times that of Denmark's coverage of 2.9 per cent and it also beat South Korea and Japan, which have 19.6 per cent and 16.3 per cent coverage respectively.