Li Chunmin displays the counterfoil of a remittance he sent to the Qinghai-Tibet Railway Construction Headquarters at his home in Tianjin, north China, April 22, 2021. (Xinhua/Liu Jinhai)

LHASA, May 19  -- In Xinhua's China Photo Archive, there is a photo of a money order taken by a Xinhua reporter 20 years ago - - the first remittance received by the Qinghai-Tibet Railway Construction Headquarters. The money order was unsigned as the remitter only put "Cadre sent to support Tibet in 1979" on it.