Li Ka-shing’s Hutchison Whampoa in Talks for British Mobile Firm O2. Cellular Telephones, Mergers, Acquisitions and Divestitures, Telephones and Telecommunications, Wireless Communications, Li Ka-shing, 3 UK, Hutchison Whampoa Limited, Telefonica SA, Telefonica UK Ltd, Vodafone Group Plc, Europe, Great Britain