1925 What unequal treaty did Zhang sign with Japan?

Yamamoto signed the Manchu-Mongolian five-way treaty. At the same time, in order to buy off his opponent Yamamoto, he gave Zhang 5 million yuan. The treaty stipulates that the Japanese government will contract the construction of the following five railways:

1 From Dunhua via Laotougou to Tumen River coastline;

2. Arrive at the Lu line from Changchun;

3 Line from Jilin to Wuchang;

4 from Taonan to Soren Line;

5 From Yanji to Hailin Line