Has China expressed the desire to claim Outer Manchuria recently?
Outstanding boundary issues between China and Russia were officially settled in the 1991 Sino–Soviet Border Agreement. Article 6 of the 2001 Sino–Russian Treaty of Friendship provides that the contracting parties—the People's Republic of China and the Russian Federation—have no territorial claims.
As the Republic of China, now based in Taiwan, has never recognized the People's Republic of China nor its border treaties with other countries, some maps published in Taiwan still show the entire Heixiazi Island and the Sixty-Four Villages East of the River as Chinese territories. However, these maps show Outer Manchuria, sometimes called "lost territories in the Northeast" (東北失地), to be Russian territory.
Some Manchu and Han Chinese regard Outer Manchuria as territory that was unfairly taken away, as in Mao's comments leading up to the Sino–Soviet border conflict.
I am wondering if during a speech or in a document drafted by the document China ever expressed the desire to get this territory back, especially after Article 6 of the 2001 Sino–Russian Treaty of Friendship, because the video seems to imply that this territory is something China really wants when I don't see any sign that it's even in the government's mind or plan.