Truong Thi Mai, Politburo member, Secretary of Party Central Committee and head of its Organisation Commission handed over the Politburo's decision to Dung on May 31.
He will hold the position until the Politburo completes the organisation of the Party Committee of Ha Giang.
Dung, born in 1973 in Nhan Khang commune, Ly Nhan district of Ha Nam province, has been Deputy Secretary of the Ha Giang Party Committee since November 28, 2017.