China has called on the US to cancel its sweeping tariffs on Chinese goods entering the country as a sign that President Donald Trump is serious about resolving the trade war between the two countries.

A Chinese official said there had been no trade talks with the US, despite suggestions otherwise from the Trump administration.

The trade war between the world's two largest economies has been escalating, with China sending back Boeing planes it ordered from the US in its latest retaliation over tariffs.

But Trump has appeared to soften his stance on China, saying that the taxes he has so far imposed on Chinese imports would "come down substantially, but it won't be zero".

A trade war between China and the US is in full swing, with Trump imposing import taxes of up to 145% on Chinese goods coming into the US, and China hitting back with a 125% tax on American products.

In one of China's strongest statements yet over the tariff war, Commerce Ministry spokesman He Yadong said the US should remove all "unilateral tariff measures" against China, "if it truly wanted" to solve the issue.

"The person who tied the bell must untie it," he added.

Separately, Foreign Ministry spokesman Guo Jiakun said China and the US had "not conducted consultations or negotiations on tariffs, let alone reached an agreement".

He added that reports to the contrary were "false".

Trump previously said negotiations between the countries were "active" - but this was also contradicted by US Treasury Secretary Scott Bessent, who said on Wednesday they had not yet begun.

Bessent added that there was an opportunity for a "big deal" between the US and China on trade.

He has previously said he expected a de-escalation of the "unsustainable" trade war, and said the current situation was "not a joke".

Trump said on Tuesday that he would be "very nice" in negotiations with Beijing in the hope of securing a trade deal.

But following China's latest comments, he said on his Truth Social media platform "Boeing should default China for not taking the beautifully finished planes that China committed to purchase".

"This is just a small example of what China has done to the USA, for years," he added, before repeating accusations that synthetic opioid fentanyl "continues to pour into our country from China, through Mexico and Canada, killing hundreds of thousands of our people".

The boss of plane manufacturer Boeing revealed China had sent back aircraft it had ordered from the US as part of its retaliation to tariffs.

Kelly Ortberg said this week that two planes had already been returned and another would follow due trade tensions between the two countries.

China held a roundtable on Wednesday to address the concerns of more than 80 foreign firms over the impact of US tariffs on their investments and operations in China, the commerce ministry said.

"It is hoped that foreign firms will turn crises into opportunities," said Vice Commerce Minister Ling Ji.