Just an observation .......20 Jun 2023 19:25
International trade
On 23 November 2010, at a meeting of Russian Prime Minister Vladimir Putin and Chinese Premier Wen Jiabao, it was announced that Russia and China had decided to use their own national currencies for bilateral trade, instead of the US dollar. The move is aimed to further improve relations between Beijing and Moscow and to protect their domestic economies during the Great Recession. The trading of the Chinese yuan against the ruble has started in the Chinese interbank market, while the yuan's trading against the ruble was set to start on the Russian foreign exchange market in December 2010.[61][better source needed]
https://en.wikipedia.org/wiki/Russian_ruble