China’s yuan dipped to a fresh six-year low against the dollar on Friday, crossing the 6.76 level before paring losses as strong dollar purchases by companies continued to pile pressure on the Chinese currency, traders said.

With the dollar climbing to seven-month highs against a basket of currencies, spot yuan hit a low of 6.7606 per dollar level on Friday afternoon, touching the weakest level since September 2010.

The dollar index rose to 98.559 by 08:30 GMT from the previous close of 98.315, its loftiest since March, and has gained 0.6% for the week. It has gained about 4% since early September.

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The yuan settled at 6.7599 per dollar at 4:30 p.m. (08:30 GMT). It lost 0.2% against the dollar for the day and 0.5% for the week.

China takes the official market closing price at 4:30 p.m. (08:30 GMT) into consideration when it fixes the official guidance rate, in an effort to let market forces play a bigger role in determining the yuan’s value. The market also has a special evening session lasting until 11:30 p.m.