SHANGHAI (Dow Jones)--China may change its exchange-rate policy on Sunday, the one-year anniversary of its decision to loosen the yuan's peg to the U.S. dollar, the state-run National Business Daily reported Friday, citing unnamed analysts.

The National Business Daily is based in Shanghai and has only a limited influence.

The unnamed analysts' comments come after the country's foreign-exchange regulator said China will gradually increase the flexibility of the yuan's exchange rate in an annual report Thursday.

Some analysts, including those at Bank of America Merrill Lynch and Standard Chartered, have said the Chinese central bank may widen the yuan's trading band against the dollar this month.

The central bank currently allows the yuan to float up to 0.5% above or below a daily central parity rate against the dollar.