Hong Kong (CNN) President Donald Trump has warned that US tariffs on $250 billion of Chinese exports are unlikely to go away anytime soon — even if the two countries reach a deal to end their trade war.

"We're not talking about removing them, we're talking about leaving them for a substantial period of time," Trump said Wednesday."Because we have to make sure that if we do the deal with China that China lives by the deal because they've had a lot of problems living by certain deals."

The United States and China, the world's two biggest economies, are trying to negotiate a resolution to their trade dispute that escalated dramatically last year with both sides imposing new tariffs on huge portions of each other's exports.

The clash has shaken financial markets, fueled political tensions and caused problems for companies around the world. Businesses have already begun shifting their supply chains out of China to other countries in Asia to avoid the trade-war tariffs.

Trade talks between the two governments will resume next week after a pause in negotiations.

US Treasury Secretary Steven Mnuchin and Trade Representative Robert Lighthizer will travel to Beijing for discussions meant to finalize an agreement between the two countries. It's expected that a Chinese delegation, led by Vice Premier Liu He, would then go to Washington for further talks.

China's Ministry of Commerce announced during a press conference Thursday that a US trade delegation will be in Beijing for talks March 28 and March 29. It also announced a Chinese delegation will be in Washington D.C. in early April.

Negotiations had been on hold as the two sides tried to figure out how to overcome disagreements about how the United States would ensure China is abiding by any deal. US concerns about how China goes about getting hold of American technology and trade secrets have also been a sticking point.

The port in the Chinese city of Tianjin. China has been struggling with an economic slowdown that has been exacerbated by the trade war with the United States.

Aiming for summit in late April

The Trump administration, citing longstanding complaints from US companies, accuses China of stealing valuable commercial information though cyberattacks and forcing American businesses to hand over proprietary technology in exchange for access to Chinese markets.

Beijing rejects the accusations. But at the same time, it has recently introduced measures that attempt to address the US concerns, such as a new foreign investment law that was rushed through this month.

For its part, the US government last month indefinitely postponed a major increase in the tariffs on Chinese goods as the negotiations continued to progress.

The Trump administration official told CNN this week that the two sides hope to reach an agreement to be signed at a summit in late April at Trump's Mar-a-Lago resort in Florida, where he previously hosted Chinese President Xi Jinping in 2017.

Trump's rhetoric on the trade negotiations has veered between hawkish and highly optimistic. He said nearly a month ago that the two governments were "getting very, very close" to a deal for which he would participate in a "signing summit" with Xi. Reports suggested the summit could take place in late March.

But that bout of optimism was soon followed by the pause in negotiations.

On Wednesday, Trump said that the agreement "is coming along nicely," adding that "we have our top representatives going there this weekend to further the deal."