BEIJING — China's foreign exchange reserves came in at $3.09 trillion at the end of September, official data showed on Oct 6.

The amount increased by $19.7 billion, or 0.6 percent from the beginning of 2019, according to the State Administration of Foreign Exchange (SAFE).

Wang Chunying, a spokesperson for the SAFE, said that the scale of forex reserves is affected by multiple factors including exchange rates and changes in asset prices.

"Factors including the global economic growth, monetary policies of major countries, the global trade situation and geopolitics led to the rise in the US dollar index and the drop in bond prices of major countries," said Wang.

Since the beginning of the year, Chinese economy, despite complex global situation, has maintained overall stability and posted stable growth with an improved economic structure, according to Wang.

The scale of China's forex reserves is generally stable, said Wang, adding that small fluctuations in the scale of forex reserves are mainly affected by valuation factors.