I think commodity prices worldwide rise because of the riding on the pandemic pretext in the USA. Because the Petrodollar reserve currency is being created at the unprecedented amount in the last two years, high inflations caused by currency debasement will certainly happen, the whole world will suffer at varying degrees, the poor countries will get hit the most severely; rich ones will suffer less. China's economy will be dancing carefully along the changing world in this very challenging times! But the other thing, the cheap oil (easy to extract ones, the low hanging fruit) is gone already thus oil price must increase. .They have all this spending planned but no expansion in physical production capability. The reality is, all the new spending will simply produce inflation as domestic physical production can't catch up to printing and the USD depreciates externally.
The depreciation vs the RMB in particular is highly damaging as commodity prices follow the Chinese economy due to the Chinese economy being the biggest market. As RMB rises, commodity prices everywhere rise. There's no escape from the inflation.
Anyhow China just hiked its FX reserve ratio to weaken yuan yesterday.
Mainland China's financial institutions will need to hold 9% of their foreign exchange in reserve from December 15, the central bank said in a statement Thursday evening Beijing time (09 December 2021), a 2 percentage point increase. The FX RRR hike comes at a level that twice in the last 10 years has been associated with a significant regime shift in the yuan (devaluations).