BEIJING -- China largest deep-sea oil drilling platform was dispatched from the eastern city of Qingdao on Sunday, heading to its service destination in the South China Sea.

The platform, with a length at 182 metres and height at 68 metres, weighs 32,000 tons. It took 21 months to build. The oil drilling platform is estimated to arrive in the South China Sea in early June, and start service after a series of tests.