With more than enough cash on their hands and a big buying power, China continued to buy U.S. notes and bonds, bolstering its holdings at the U. S. Treasuries to record at a $1.17 trillion.

Statistics from the U.S. Treasury Department released over the weekend showed the huge trade surplus performance of the world's second-largest global economy over the past few months drove the U.S. Treasuries acquisition.

Chinese exports grew 20.4 percent in July from a year ago, while imports rose 22.9 percent, creating a trade surplus of $31.5 billion. It is the highest China had since January 2009.

Month-on-month, figures showed China's purchase of U.S. bills more than doubled to $10.1 billion from $4.5 billion.

Investors into the U. S. Treasuries have gained by as much as 7.8 percent this year, the most since the global financial meltdown hit in 2008.