Hong Kong tycoon Li Ka-shing announces his retirement in Hong Kong

Li Ka-shing, Hong Kong’s richest man, has announced his retirement, formally passing the reins of his $100bn retail, infrastructure and property empir(...)

In a sign of the failure to stem subscriber defections following the launch of its  BlackBerry 10 devices, the maker of the once must-have device for the business world conceded it needed to look at options for its future including a sale or alternatives such as joint venture. Photograph: Reuters/Brendan McDermid

BlackBerry has put itself up for sale as part of a wider strategic review to help the ailing Canadian handset maker in its battle for survival in(...)