He also serves as a member of the National League for Democracy's (NLD) Central Executive Committee and heads NLD's voter list review committee.

[2] A native of Zipingyi village in Pyinoolwin Township, he graduated from the Mandalay Arts and Science University with a B.Sc.

[2][3] He was arrested in September 1988 for serving as chairman for the Nawnghkio Township General Strike Committee.

[3] Tun Tun Hein won the seat in the Pyithu Hluttaw to represent the Nawnghkio Township constituency during the 1990 Burmese general election, winning about 57% of the votes (18,886 valid votes), but was never allowed to assume his seat.

[5] In 2015 election, he contested and won the Nawnghkio Township constituency for a seat in the country's lower house.