China's foreign exchange regulator on Friday revised down the country's current account surplus in the first half of 2011 to 87.8 billion U.S. dollars from the previously reported 98.4 billion U.S. dollars.

The surplus under the current account, which measures China's foreign trade, accounted for 2.8 percent of the nation's gross domestic product (GDP), according to the revised balance sheet released by the State Administration of Foreign Exchange (SAFE).

The SAFE revised up the capital and financial account surplus during the same period to 183.9 billion U.S. dollars from 179.3 billion U.S. dollars.

The country's international reserve assets, which was raised by the surpluses of the current as well as the capital and financial accounts, were revised up to 283.7 billion U.S. dollars in the first half of 2011.

For the second quarter, the SAFE revised the current account surplus down to 59 billion U.S. dollars from 69.6 billion U.S. dollars. The capital and financial account surplus, however, was revised up to 97.7 U.S. dollars from 67 billion U.S. dollars.