On the subject of de-dollarization: three years ago China created a state owned entity called "China Mineral Resources Group" which coordinates all Chinese purchases of iron ore, the single most traded commodity in the world (higher volume than crude). 1.2 billion tonnes flow to China every year (out of around 1.6 billion total in the world).
Last week, CMRG banned the import of Australian BHP iron ore, the single largest iron ore exporter in the world whose biggest customer is obviously China.
On Friday, BHP capitulated by accepting that iron ore will now be sold to China in RMB. Took them less than a week.