MOSCOW, April 16 (Xinhua) -- China Railway Construction Corporation Limited (CRCC) signed a contract with a local company on Tuesday to build a section of a subway line in southwest Moscow.

CRCC Rus held a signing ceremony here with the Bureau of Construction Technology Development, a subsidiary of the Moscow Engineering Projects company owned by the Moscow government.

The project involving about 6.4 km of metro line will cost 27 billion rubles (some 419 million U.S. dollars). It will connect downtown Moscow with a suburb, and it is expected to significantly ease traffic congestion in the metropolis.

Since August 2017, CRCC has been building a 4.6-km section and three stations on the "Large Circle Line" in Moscow, which will be completed by the end of 2020.

In February this year, CRCC won another metro construction contract and will start tunneling in December 2019.

At Tuesday's ceremony, CRCC Rus chairman Meng Tao said these projects are proceeding smoothly and the signing of the new contract showed a higher level of cooperation.

Natalya Otsepova, CEO of the Bureau of Construction Technology Development, said she hopes the project will be a success and later generations will appreciate it.