Bilateral economic ties have been affected by friction. On July 8, the Commerce Ministry said it would re-investigate chicken products from the US, just one day before the expiration of the WTO ruling on the product.

On July 7, the world's top trade body issued a report on the appeal regarding US anti-dumping and countervailing measures on 24 products from China. The WTO ruled the US moves "to be inconsistent with" WTO rules.

But the WTO was unable to rule on whether a US trade remedy law - commonly known as GPX Legislation, which was signed by US President Barack Obama in March 2012 - was consistent with WTO rules.

The US enacted the legislation to allow its Commerce Department to apply countervailing duties to imports from nonmarket economies, including China.

"On the whole, trade disputes between China and the US are set to increase and become more complex in view of the huge trade flows. What's more, there will more fights over the rules and standards affecting trade flows," Li Hui, a deputy director of the Trade Remedy and Investigation Bureau at the Ministry of Commerce, told a recent news briefing.

"China's challenge to the US' domestic laws aims to bring the wrong measures of the US, a global trade leader, into conformity with the WTO rules, which means a lot to us," she added.

Top 10 US companies in China	Results from China-US dialogues since 2009