US President Donald Brief said he could extend March 1. deadline for reaching a trade agreement with China if they make good progress
This week, Chinese and US officials will hold high-level talks aimed at halting their harmful trade war.
US officials have said earlier that March 1
Both countries have introduced billions of dollars worth of each other's goods.
Vice-President talks started this week in Beijing. The high-level debate led by US Treasury Secretary Steven Mnuchin and Chinese Vice President Liu He should begin on Thursday, as both parties will hasten to make progress by 1 March.
"If we are close to a deal where we think we can make a real deal and that will be done, I could see that I will release this transparency a bit," said Mr Short. .
"But, overall, I don't want to do that."
In the US, US $ 250 (£ 193 billion) Chinese merchandise values have been set, and China has withdrawn its liability by charging $ 110bn in the US
In December, both sides agreed to suspend new tariffs for 90 days to negotiate.
The US said it would raise tariffs from $ 200 billion. Value of Chinese imports from 10% to 25% if both parties before March 1.
J. It also threatened further tariffs for additional $ 267 billion worth of products
Washington is pushing Beijing to change its economic policies, which it claims to unfairly favor local businesses through subsidies and other support
. ] She also accused the government of supporting technology theft as part of a broader development strategy, while China has the feeling that the US is using a trade war to limit the country's rise