Investors are also closely watching the Federal Reserve's interest rate decisions, which should appear later in the day.
Trump said on Twitter on Twitter
that there is still no sign that China has started buying American agricultural products. He suggested that China "probably should" wait to see if a Democrat was elected the next day.
"The problem with waiting, though, is that if & when I win, the deal they get will be much more difficult than what we are negotiating now … or no deal at all," he said.
The criticism came when top negotiators on both sides met in Shanghai for a two-day meeting Wednesday, for the first time since the parties announced a temporary G-20 ceasefire last month. Last week, White House economic adviser Larry Kudlow told CNBC that he did not expect any big deal during the meeting.
On Wednesday morning, government statistics show that China's official purchasing managers index rose to 49.7 in July, slightly better than market expectations, but still below the 50th mark, which separates shrinkage from expansion .
Traders are also expecting clues from PMI Caixin / Markit on Thursday, a closely watched gauge that better reflects the private manufacturing sector than official data.
Asia's geopolitical tensions rise after North Korea on Wednesday released another round of rounds, US and South Korean officials confirmed. This is North Korea's third start since May.
The Federal Reserve is expected to lead to a reduction in interest rates later on Wednesday, which would be the first time the central bank has cut interest rates since 2008.
Here are some of the other great movements in Asian markets at 11:20 AM Hong Kong time. Samsung Electronics ( SSNLF ) crashed 3% in Seoul after the electronics giant reported a 56% drop in second quarter earnings from the same period a year earlier, referring to the declining prices of memory chips.
Hong Kong will announce GDP figures for the second quarter later on Wednesday. Analysts expect the local economy to be affected by the city's mass protests.
China General Nuclear Power Group, China's largest nuclear power company and one of the largest in the world, published a prospectus on Wednesday morning, planning to announce $ 2.2 billion ($ 15 billion) on the stock exchange Shenzhen. It will be China's largest flotation exchange this year. The money will be used mainly for the construction of four nuclear reactors in the southern provinces of Guangdong and Guangxi.
Oil prices rose in early Asia trade in anticipation of a Fed rate cut. The WTI and Brent commodities rose, trading at $ 58.44 a barrel and $ 65.18 a barrel respectively.
US stocks ended lower on Tuesday. The Dow Jones Industrial Average ( DJIEW ) was 0.1%. The S&P 500 Index ( INX ) lost 0.3% and the Nasdaq Composite Index ( COMP ) dropped 0.2%.