[4][5] With the fall of the ruble in late 2014, negotiations over costs were held up and the Deputy Mayor for Construction Marat Khusnullin announced that the city would continue development using its own funds.

Rather than CRCC handling the whole project, the city wanted to split the work between Russian and Chinese workers.

[10] On 26 August 2019 Sergei Sobyanin officially announced the extension of line 16 to the south from Kommunarka to Troitsk.

[11][12] On 25 November 2019 the construction of the first tunnel of the line between "Ulitsa Novatorov" and "Universitet Druzhby Narodov" began.

On 4 December 2020, tunneling was completed, the shield passed 2.7 kilometres (1.7 mi) at a depth of up to 30 metres (98 ft).