(Reuters) – Mongolian Prime Minister L. Oyun-Erdene said construction of Russia’s planned new Power of Siberia-2 gas pipeline to China, which was expected to start this year, may be delayed, the Financial Times reported on Sunday. Russia has been in talks to build a new pipeline to carry 50 billion cubic meters of gas a year from northern Russia to China via Mongolia, almost as much as the now-idle Nord Stream 1 pipeline under the Baltic Sea that was damaged in 2022. China and Russia have yet to agree on key details of the mammoth project, he told the paper, adding that record global gas price…