7 March 2019 Request for Proposals issued to shortlisted firms for Construction Supervision Services
21 March 2019 Invitation for bids published for civil works for Ulaanbaatar – Darkhan
2 May 2019 Bids submitted for civil works for Ulaanbaatar – Darkhan
13 May 2019 Opening of financial proposals for Construction Supervision Services
June 2019 (planned) Award of Ulaanbaatar – Darkhan civil works contracts
June 2021 (planned) Completion of construction
June 2025 (planned) End of pilot Performance-based maintenance contracts