Ukraine

Only a handful of companies worldwide make chemical additives for mechanical lubricants – motor oil for tanks and cars. Almost all of them stopped selling the chemicals to Russia at the start of its full-scale invasion, leading to widespread shortages and complaints from motorists.

Dekleptocracy found that one Chinese company, Xinxiang Richful, now satisfies a large part of Russia’s demand, supplying up to eight million kilograms a year.

So something that can't be done, yet they talk like it can be.