China's growing military presence in the South China Sea has drawn warnings from the United States that Beijing is seeking to exert control over one of the world's most important sea lanes, but so far the shipping industry seems less concerned.
Beijing has been increasingly assertive in staking its claim to almost the whole of the sea, though which trillions of dollars of trade passes each year.
This month China landed its first test flights on a new 3,000-meter (10,000-foot) runway it has built on a reef in the Spratly Islands, drawing protests from Vietnam and the Philippines, which have overlapping claims in the area.