USD/CNH is off its Thursday highs with Chinese State banks intervening to sell USD/CNY.

I gave a heads up to the intervention yesterday:

And Justin followed up with more later in the session:

There was further selling by State banks during London time, but the impact has been small only:

usdcnh china bank intervention 18 August 2023

Yesterday the People's Bank of China signalled very clearly it'd like the yuan to stop plunging so rapidly, with a reference rate more than 10 big figures away from the modelled estimate: