Move shows China's confidence in the currency's recent gains, analysts say.

Tax negotiators agree on corporate tax rate of 21% beginning in 2018.

Tax negotiators agree on corporate tax rate of 21% beginning in 2018.

As Congress works on a tax deal, the president suggests corporate rate may go to 22%.

As Congress works on a tax deal, the president suggests corporate rate may go to 22%.

Purchase of semiconductor company nixed on national security concerns.

Purchase of semiconductor company nixed on national security concerns.

People's Bank of China lifts rule that made betting against the currency expensive.