PANAMA CITY (Reuters) -A ship with supplies for Canadian miner First Quantum's unit in Panama was unable to dock as local boats blocked off access to the key port, the company said in a statement to Reuters on Friday. Protests have in recent weeks escalated against the miner's contract for a major copper mine operated by the company's local unit, known as Minera Panama. The ship in question has remained for several days in Panamanian waters without being able to reach the Punta Rincon port due to protests, but on Thursday the captain was forced to call the authorities because ...