AFAIK
Not yet
We'll get confirmation later
Now they are doing war drills with ASEAN countries including Vietnam
Later they will link up with the QUAD navies, including a NIMITZ carrier battle group from US, only then the drills in South China Sea will be conducted
Ya'll Nibbiars South China Sea.
On the South. The Eastern and Southern limits of Singapore and Malacca Straits A line joining Tanjong Datok, the Southeast point of johore through Horsburgh Reef to Pulo Koko, the Northeastern extreme of Bintan Island. The Northeastern coast of Sumatra as far West as Tanjong Kedabu down the East coast of Sumatra to Lucipara Point thence to Tanjong Nanka, the Southwest extremity of
Banka Island where it transitions as Java Sea, through this island to Tanjong Berikat the Eastern point, on to Tanjong Djemang in Billiton, along the North coast of this island to Tanjong Boeroeng Mandi and thence a line to Tanjong Sambar the Southwest extreme of
Borneo.
On the East. From Tanjong Sambar through the West coast of Borneo to Tanjong Sampanmangio, the North point, thence a line to West points of Balabac and Secam Reefs, on to the West point of Bancalan Island and to Cape Buliluyan, the Southwest point of Palawan, through this island to Cabuli Point, the Northern point thereof, thence to the Northwest point of Busuanga and to Cape Calavite in the island of Mindoro, to the Northwest point of Lubang Island and to Point Fuego in Luzon Island, through this island to Cape Engano, the Northeast point of Luzon, along a line joining this cape with the East point of Balintang Island and to the East point of Y'Ami Island thence to Garan Bi, the Southern point of, through this island to Santyo its North Eastern Point.
On the North. From Fuki Kaku the North point of to Kiushan Tao on to the South point of Haitan Tao and thence Westward on the parallel of North to the coast of Fukien.
On the West. The Mainland, the Southern limit of the Gulf of Thailand and the East coast of the Malay Peninsula.