BEIJING — President Xi Jinping promised Tuesday to cut China’s auto tariffs and improve intellectual property protection in possible concessions aimed at defusing a worsening dispute with Washington over trade and technology that investors worry could set back the global economic recovery.

Speaking at a business conference, Xi made no direct mention of his American counterpart, Donald Trump, or the dispute. He promised progress on areas that are U.S. priorities including opening China’s banking industry and boosting imports but didn’t address key irritants for Washington such as a requirement for foreign companies to work through joint ventures that require them to give technology to potential local competitors.

Private sector analysts saw Xi’s speech as an overture to help end the biggest trade dispute since World War II. It has fueled fears of a global economic chill if other nations respond with their own import barriers.

Markets surged in response in Asia, Europe and also in the U.S., where the Dow jumped 300 points before the opening bell Tuesday.

Xi tried to position China as a defender of free trade and cooperation, despite its status as the most-closed major economy, in response to Trump’s “America first” calls for import restrictions and trade deals that are more favorable to the United States.

“China’s door of opening up will not be closed and will only open wider,” said Xi at the Boao Forum for Asia on the southern island of Hainan.

Xi said Beijing will “significantly lower” tariffs on auto imports this year and ease restrictions on foreign ownership in the auto industry “as soon as possible.”

Trump has threatened to raise tariffs on Chinese goods worth $50 billion in response to complaints Beijing pressures foreign companies to hand over technology in violation of its World Trade Organization market-opening commitments. Beijing fired back with its own $50 billion list of U.S. goods for possible retaliation.

The Chinese leader promised to encourage “normal technological exchange” and to “protect the lawful ownership rights of foreign enterprises.”

“President Xi’s speech could create a very good platform to launch U.S.-China dialogue at the WTO to find a deal on intellectual property rights,” said economist Rajiv Biswas of IHS Markit in a report. “This would be a victory for the world trading system and an important step away from the abyss of rising global protectionism.”

The dispute is likely to end “with a concession from China,” said Larry Hu of Macquarie Group in a report.

Singapore Prime Minister Lee Hsien Loong, speaking at the Boao event, welcomed Xi’s promises on finance, investment, intellectual property and auto imports.

“We look forward to seeing these strategies elaborated, implemented and bearing fruit,” said Lee, according to a transcript issued by his office.

Also Tuesday, China filed a WTO challenge against Trump’s earlier tariff hike on steel and aluminum in a separate dispute.

Beijing, which has issued a $3 billion list of U.S. goods including pork and apples for possible retaliation, requested 60 days of consultations as a first step. If that fails, the Chinese government can ask for a ruling from a WTO panel of experts.

Chinese officials deny foreign companies are compelled to hand over technology, but business groups say joint venture and licensing rules make that unavoidable. The United States filed a WTO complaint last month accusing Beijing of violating its trade pledges by imposing unfair contract terms and allowing companies to use foreign-owned technology after licensing periods expire.

Foreign companies complain Beijing is squeezing them out of promising parts of the state-dominated economy to promote the ruling Communist Party’s plans to create Chinese global competitors in fields including robotics, electric cars and pharmaceuticals.

Xi gave no details on how those conditions might change, leaving it unclear whether that might mollify Washington.

Easing rules that limit global automakers to owning no more than 50 percent of a joint venture with a Chinese partner might help to address Trump’s complaints about technology as well as giving them more flexibility in their biggest global market.

Jake Parker, the vice president for China of the U.S.-China Business Council, which represents companies that deal with China, welcomed Xi’s announcement but expressed hope for additional steps such as ending requirements for joint ventures and technology licensing.

“Ultimately, U.S. industry will be looking for implementation of long-stalled economic reforms, but actions to date have greatly undermined the optimism of the U.S. business community,” Parker said in an email.

Xi repeated pledges to open China’s finance industries to foreign investors but gave no additional details.

Chinese regulators announced that intention in November, just after Trump ended a high-profile visit to Beijing, but gave no timeline or details. Business groups welcomed the commitment but said breaking into China’s state-dominated financial industries would be hard for new competitors and Beijing might impose restrictions that would make such an effort unprofitable.

The biggest beneficiaries of a cut in China’s 25 percent tariff on most auto imports will be the small number of automakers such as electric car brand Tesla that have no factory in China. Other automakers such as General Motors and Volkswagen that assemble vehicles in China with local partners could offer additional models.

More broadly, Xi repeated official promises to expand imports and to narrow China’s trade surplus, another irritant for Washington. China reported a global trade surplus of $423 billion last year — about two-thirds of that with the United States.

“China does not seek a trade surplus,” said Xi to an audience of Chinese and foreign businesspeople. “We have a genuine desire to increase imports and achieve a greater balance of international payments.”

The president promised to make faster progress toward joining the WTO’s Government Procurement Agreement, which extends the WTO’s free-trading principles to purchases by governments. That can make a significant difference in developing countries, where the government often accounts for most sales of computer software, medical equipment and other high-value goods.

The bulk of Xi’s 40-minute speech was devoted to China’s vision for economic development and its global role following a ruling party congress in October that confirmed him as the most dominant Chinese leader since at least the 1980s.

Xi sounded a conciliatory note toward neighbors with which Beijing has territorial disputes, saying China wants to pursue peaceful cooperative development.

“We will not bully our neighbors,” the president said.

“Cold war thinking and zero-sum games are increasingly obsolete,” he said. “Arrogance or self-righteousness can only bump into walls at every turn.”

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