BEIJING - China's foreign exchange regulator on Thursday trimmed its first-quarter current account surplus to $23.5 billion from the preliminary figure of $24.7 billion.

The State Administration of Foreign Exchange also revised the surplus in financial accounts, which measures net capital inflow, to $56.1 billion in the first quarter from the previous $49.9 billion.

Excluding the effects of changes in exchange rates and asset prices, the country's international reserve assets added $74.6 billion in the first quarter.

The foreign exchange reserves increased $74.8 billion in the first three months, while reserves in the International Monetary Fund decreased $400 million and the special drawing right added $200 million, according to the statement.