People's Bank of China set the onshore yuan (CNY) reference rate for the trading session ahead.

CNH is the offshore yuan. USD /CNH has no restrictions on its trading range.
A significantly stronger or weaker rate than expected is typically considered a signal from the PBOC.
The previous close was 6.9015

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PBoC injects 7bn yuan of 7-day reverse repos at an unchanged rate of 2.0%

336bn yuan of RRs mature today
thus a net drain of 329bn yuan on the day in open market operations

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