Over about the last six months, I've seen it more and more that Chinese suppliers are quoting in RMB, and not US$ anymore. They are hedging their pricing as the US$ slips, and as the RMB gradually strengthens.
For our caps business, they still quote US$, but give us a weekly updated price on pending samples and orders. Scary how fast the dollar is slipping (I get paid in US$, and every month it's less and less
Just be aware of this, if you have quotes in $, that on PO time, or final payment time, things might be very different (esp if the quote is older than a few months!).