Q: In this task, a passage will be given and the goal is to generate a question about temporal relations based on that passage. A temporal relation describes the relation between two things with respect to time e.g., something happens/starts/terminates/... immediately/shortly/usually/... before/after/during/... something else.
 Your question should include an event, or ask about an event, and should not be a yes/no question.
Passage: "For the missing link between Poipet and Sisophon (Cambodia), the construction of the railway will start early next year, using the rail tracks donated by Malaysia while the ADB (Asian Development Bank) would be financing the construction work," Chan told reporters after officiating the 28th ASEAN Railways CEO's conference here. Chan said once construction of the missing link is completed, it will enable the movement of trains from Singapore to Phnom Penh (Cambodia).
A:
What event has already finished?