Even as talks between the countries continue, as Beijing and Washington seek to iron out the details of the “phase one” agreement to end the 18-month trade war, China cautioned on Thursday that the long-running conflict won’t end until the U.S. removes all tariffs levied since July 2018.

“The ultimate goal for the negotiations between the two sides is to end the trade war, cancel all additional tariffs. This is good for China, good for the US and good for the whole world,” Ministry of Commerce spokesman Gao Feng said in a statement Thursday, the South China Morning Post reported. But China is willing to agree to a partial deal that would include “progress in the direction of canceling all tariffs,” he said.

Under the deal announced Friday at the White House, which officials from both countries are still discussing, China would agree to increase purchases of U.S. agricultural products. Trump has said that China’s commitment was between $40 to $50 billion each year. In addition, Trump said that China would take action on certain intellectual property disputes. The president has regularly voiced discontent over China’s policies on forced technology sharing, which he has said amount to intellectual property theft. In return for China’s concessions, the U.S. has agreed to suspend a tariff increase set to take place this week.