<span style="color: #222222;">US President Donald Trump says he will sign the first phase of a trade deal with China at the White House on 15th of this month.<br />''<br />''In a tweet, Mr Trump said that he will travel to Beijing at a later date to open talks on other sticking points in the US-China trade relationship that remain to be worked out.<br />'' <br />''In the first-step agreement announced earlier in December, the United States agreed to reduce tariffs and China agreed to buy larger quantities of US farm products.</span><br />