TikTok, with 170 million US users, faces a potential ban unless its Chinese owner, ByteDance, sells its US operations.
China's low birth rate and aging population are ending any hopes Beijing had of overtaking the U.S. as an economic giant.
Karma Tsetan has been elected the region's chairman, as announced at the third session of the 12th People's Congress of the Xizang autonomous region on Wednesday, Xizang Daily reported.