The authorities have launched a pilot project allowing some trade in renminbi. It comes as top US and Chinese officials wrap up a summit on economic coordination Tuesday.
Sluggish growth could last for decades, economists say.
The US recession and the swine flu outbreak have delivered a one-two punch to Mexico's sources of revenue, threatening gains against poverty made in the past two decades.
The central bank says it will pull back when the US recovers, but the timing is tricky.
At conference in Siberia, leaders of Russia, China, India, and Iran float idea of new 'supranational' currency. China offers $10 billion to neighbors.
China and Japan were among the nations that reduced US debt holdings in April.
In a country hit hard by economic downturn, the industry is expected to double to $1.5 billion this year.