BTSGIF is the infrastructure fund; its initial assets invested by the Fund are net farebox revenues to be generated from the operation of core green lines sky train covering of 23.5 km., consisting of 2 lines (Mo Chit-On Nut, and Taksin Bridge-National Stadium). The concession in respect of Core Sky Train will expire in approximately 17 years (until 4 December 2029). The investment cost totals Baht 61,399 million.