The US has been the main oil trade partner of Venezuela since the 20th century.
The US' draft resolution, which would have established a new investigative mechanism for one year as well as identify those responsible for the use of chemical weapons, was rejected as Russia voted against it.
The US formally suspended the treaty on Feb 1 in the face of opposition from Asian and European countries. Russia followed the US suspension with its own a day later. By August, both countries will officially exit the pact if no agreement is reached, increasing the risk of an arms race.
The USTR said the action was the result of its "public comment and hearing process".
The United Nations Security Council unanimously adopted a resolution on Monday to ban the DPRK's textile exports and cap imports of crude oil.
The US cruise ship Viking Orion is docked at the port city of Haikou for the first time in Haikou city, South China's Hainan province, Oct 5, 2018. [Photo/IC]
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The US sanctions and tariffs have trampled over international laws and the norms by which countries, large or small, strong or weak, should treat each other.
The US trade deficit with China through April 2017 stood at approximately 6.5 billion, according to the US Census Bureau. For all of 2016, the deficit was more than 7 billion.
The United Nations also supports the leaders' wish that Haitian authorities completely take over the security of the country, he said.
The US-based contingent was completed by Angelika Amon, an Austrian researcher at MIT, for determining the consequences of aneuploidy, when a cell does not have the normal number of chromosomes.