China’s Ministry of Commerce on Friday said that the country is currently evaluating the situation after the United States made multiple recent attempts to initiate dialogue over tariffs through various official channels, according to a report by Xinhua.

In a statement, a ministry spokesperson said that the tariff and trade wars were unilaterally initiated by the United States, and if it wants to negotiate, it must demonstrate sincerity by making preparations and taking concrete actions, such as correcting its erroneous practices and lifting the unilateral tariffs.

Stating that China has noticed the US constantly talking about adjustments to its tariff measures, the spokesperson said that “in any potential dialogue or talks, if the United States does not rectify its erroneous unilateral tariff measures, it would demonstrate a complete lack of sincerity and further undermine mutual trust,” Xinhua reported.

Earlier on April 28, the Chinese Foreign Ministry rejected US President Donald Trump’s claim that his Chinese counterpart Xi Jinping had called him, reiterating that no talks were held between the two nations to resolve the tariff war, CNN reported.

Chinese Foreign Ministry spokesperson Guo Jiakun’s statement came after Trump, in an interview with Time magazine last week, said that Xi had called him.