Ulaanbaatar's Subway?

According to a web site of Ulaanbaatar's newest hotel, Corporate Hotel, located next to Bayangol Hotel and Skytel building, it said Ulaanbaatar has subway stations. What?

The Ulaanbaatar’s Convention and Exhibition Centre and MTR subway stations are within easy walking distance of the hotel. The majority of tourist attractions and business areas are easily accessible within 5 minutes drive. The 55 well-appointed guestrooms and suites are tastefully decorated in pastelcolours , with opulent wood and brass accents carrying through the hotel’s neo-classical feel.

MTR (or Mass Transit Railway) is the main rapid transit railway system in Hong Kong, opened in 1979. What would say Charterhouse Hotel in Hong Kong, who claimed:

The Hong Kong Convention and Exhibition Centre and MTR subway stations are within easy walking distance of the hotel. The majority of tourist attractions and business areas are easily accessible within 10 minutes drive. The 294 well-appointed guestrooms and suites are tastefully decorated in pastel colours, with opulent wood and brass accents carrying through the hotel’s neo-classical feel.

Ulaanbaatar has NO subway system. But the mayor's office of the capital city started talking to build a subway system since the city has over a million population.
Another site Ulaanbaatar Metro has totally misleading information. What can I say!