BEIJING — China’s government welcomed an interim trade deal with Washington and said Thursday the two sides need to address each other’s “core concerns.”

The “Phase 1” agreement shows Beijing and Washington “can find appropriate and effective solutions to relevant issues through dialogue,” said a foreign ministry spokesman, Geng Shuang.

China agreed to increase purchases of U.S. exports by $200 billion over two years and to stop pressuring companies to hand over technology. Washington dropped plans for additional punitive tariffs on Chinese goods in the fight over Beijing’s technology ambitions and trade surplus that threatens to depress global economic growth.

“It is imperative that both parties work together, uphold the principles of equality and mutual respect, strictly abide by the agreement, address each other’s core concerns, and work hard to implement the Phase 1 agreement,” Geng said.

Geng gave no details but Beijing wants tariffs imposed earlier on most of China’s exports to the United States to be rolled back, which the deal signed Wednesday fails to do. The Trump administration says some penalties must remain in place even after a final agreement is reached to ensure Beijing carries out its promises.

President Donald Trump said earlier he planned to fly to Beijing to start a second stage of talks, but economists say their remaining disputes are so complex that an agreement is unlikely to be reached until after the U.S. presidential election in November.

Asian stock markets were mixed after the signing. China’s main market index closed down 0.5 percent while Hong Kong advanced and Tokyo was little-changed.

Investors welcomed the trade truce but enthusiasm was tempered by questions about how China can carry out promises to buy tens billions of dollars of American soybeans, oil and other farm and energy exports. “This has put a pause on things,” said Stephen Innes, a market strategist for AxiTrader. “Throwing a number out there is one thing, but how do we get there?”

Analysts warn the agreement doesn’t cover the most contentious disputes over Chinese industrial subsidies and barriers to trade in services.