Shinawatra, the new government reviewed all HSR plans, cutting them into phases with priority between Bangkok and Pattaya, Hua Hin, and Nakhon Ratchasima, expecting to tender the lines in 2014. After the May 2014 coup there were further delays while the military government reviewed all HSR lines, initially deferring all projects. Transport Minister Prajin Juntong and his Japanese counterpart Akihiro Ota signed a deal on 27 May 2015 to conduct a feasibility study for the full Northern HSR. In early 2016, the military government (NCPO) agreed to proceed with the eastern HSR route and suggested that it could be extended to Don Mueang International Airport beyond the terminus at Bang Sue Intercity Terminal thus providing a direct link between the three major airports of Bangkok, including Suvarnabhumi Airport, and U-Tapao International Airport. In 2017, the Office of Traffic Policy and Planning, alongside the Ministry of Transport and the State Railway of Thailand, agreed to this revised plan. In October 2017, the Eastern Economic Corridor Office (EEC Office) finalized previous plans to build the 10 station Eastern HSR line linking Don Mueang airport, Bang Sue, Makkasan, Suvarnabhumi Airport, Chonburi, Si Racha, Pattaya, U-Tapao Airport, and Rayong. In early 2018, the section to Rayong was excluded due to environmental and safety concerns and it was decided that the line would terminate at U-Tapao Airport. In October 2019, after months of delay, the Thai government signed an agreement with a Charoen Pokphand-China Railway Construction consortium worth $7.4 billion to build the Eastern HSR from Bangkok to Pattaya in a public-private partnership, with assets reverting to state ownership after 50 years. The Japan International Cooperation Agency conducted a feasibility study for the Northern HSR to Chiang Mai, and in 2018 reported that the passenger projections were too low for economic viability. The 670 kilometer line was estimated to cost 400 billion baht, and both private investors and the Japanese government turned away from the project. However, the Ministry of Transport denies that Japan cancelled the project. On 14 December 2022, the Department of Railways and MLIT-JICA discussed speeding up feasibility studies for the Bangkok-Chiang Mai HSR, to be finished by March 2023, and requested a study on the economic impact of the station area development. The Southern HSR to Hua Hin would be 211 km, and estimated at 152 billion baht, and a full extension to the Malaysian border was discussed in September 2021.