Development of China's large amphibious aircraft AG600 is in progress.

According to information published by Chinamil on February 16, 2022, China is facilitating the development of the homegrown AG600 large amphibious aircraft.
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AG600 amphibious aircraft (Picture source: Xinhua)

The AG600 amphibious aircraft has a single body flying boat fuselage, cantilevered high wings, four WJ-6 turboprops and tricycle retractable landing gear.

It can operate from 1,500 by 200 m (4,920 by 660 ft) stretches of water 2.5 m (8.2 ft) deep,[6] and should be able to conduct Sea State 3 operations with 2 m (6.6 ft) waves.

It was developed for aerial firefighting, collecting 12 t (26,000 lb) of water in 20 seconds and transporting up to 370 t (820,000 lb) of water on a single tank of fuel (31 rotations), and search and rescue, retrieving up to 50 people at sea.

Assembled by CAIGA, it is 39.6 m (129.9 ft) long and has a 38.8 m (127.3 ft) wingspan, its MTOW is 53.5 t (118,000 lb) from paved runways or 48.8 t (108,000 lb) from the choppy sea.