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Manufacture of large seaplanes pretty much ended after WW2 but the Chinese are starting to build some

https://www.theguardian.com/world/2016/ ... te-company

(from the article) .... The state-owned Aviation Industry Corporation of China (AVIC) unveiled the first of the new planes, dubbed the AG600, Saturday in the southern port city of Zhuhai, the official Xinhua news agency reported.

The aircraft, which has a maximum range of 4,500 km (2,800 miles), is intended for fighting forest fires and performing marine rescues, it said.

At around the size of a Boeing 737, it is far larger than any other plane built for marine take off and landing, Xinhua quoted AVIC’s deputy general manager Geng Ruguang as saying.