Chinese Eastern Railway
As the subordinate of Zhang Zuolin, Zhu Qinglan served as chief executive of the Eastern Provinces Special District, which comprised the route of the Chinese Eastern Railway, from 4 December 1922 to 1924. During his tenure, the district was redesignated the Eastern provinces Special Region on 1 March 1923 and given full administrative independence equal to that of a province. Near the end of his tenure, an agreement on joint Soviet-Chinese operation of the Chinese Eastern Railway was reached on 31 May 1924.