China expressed confidence that new United Nations sanctions would help bring North Korea to the negotiating table to end its push for nuclear weapons and ballistic missiles. Foreign Minister Wang Yi urged North Korean counterpart Ri Yong-ho to calmly react to measures to curb its exports and avoid more provocations when they met on Sunday in Manila, where diplomats from more than 20 countries are attending a security forum. Wang, who also called for the U.S. and South Korea to reduce tensions, said after meeting Secretary of State Rex Tillerson that the sanctions “created the conditions to find a breakthrough.” “The goal is to effectively block the DPRK’s nuclear development process,” Wang told reporters in Manila. “Sanctions are needed but not the ultimate goal. The purpose is to pull the peninsula nuclear issue back to the negotiating table, and to seek a final solution.” As North Korea’s main ally and biggest trading partner, China’s role is crucial to pressuring leader Kim Jong Un into halting his push for a nuclear-tipped missile that can hit the U.S. mainland. Many analysts see the North Korean program as too advanced for sanctions to make much difference, and doubt the country will ever completely give up nuclear weapons. “You need deeper sanctions over a longer period of time, like years, before you can see if North Korea changes its behavior,” Thomas Byrne, president of the New York-based Korea Society, said in a telephone interview. “The sanctions will have an economic impact but little effect on the strategic intent to develop ballistic missiles.” The penalties agreed to on Saturday by all the 15 UN Security Council members aim to cut North Korean exports by about $1 billion a year. The prohibition against North Korean coal, iron, lead and seafood came in response to Pyongyang’s testing of two intercontinental ballistic missiles last month that could target the U.S. The sanctions would also ban “the opening of new joint ventures or cooperative entities with” North Korea, and cap the number of North Koreans working in other countries at current levels. Existing joint ventures would also be prevented from expanding their operations. U.S. President Donald Trump hailed the sanctions on Twitter, noting that China and Russia had both backed the measure. Trump later said in a separate tweet that he had spoken with South Korean counterpart Moon Jae-in, whom he described as “very happy and impressed” with the Security Council’s unanimous vote. ‘Door to Dialogue’ Tillerson and South Korea’s Foreign Minister Kang Kyung-wha said sanctions against North Korea aren’t intended to bring the country down, but rather to lead to peaceful denuclearization. “The door to dialogue is still open,” South Korea said in a statement after Tillerson met Kang in Manila. Even so, Japanese Foreign Minister Taro Kono doesn’t favor talks at this time, saying sanctions should be given time to work, according to comments read at a briefing by Deputy Press Secretary Toshihide Ando. “The price the North Korean leadership will pay for its continued nuclear and missile development will be the loss of one-third of its exports and hard currency,” said Nikki Haley, U.S. ambassador to the UN. “This is the most stringent set of sanctions on any country in a generation.” The U.S. and China had been negotiating the draft text released on Saturday for about a month. The resolution “condemns in the strongest terms” North Korea’s July 4 and July 28 missile tests, and adds new individuals and entities, including the Foreign Trade Bank, a state-owned lender that acts as North Korea’s “primary foreign exchange bank,” to a UN sanctions list.  New Restrictions The restrictions are the third set of sanctions imposed on North Korea in the past 18 months in an effort to halt the country developing its nuclear and ballistic missile capabilities. The Security Council imposed penalties in March 2016 and again in November after Pyongyang conducted nuclear tests and launched a rocket. Trump isn’t ruling out a “preventive war” to stop North Korea from being able to threaten the U.S., National Security Adviser H.R. McMaster said in an interview with MSNBC done earlier in the week and broadcast Saturday. The danger posed by North Korea was “a grave threat,” he said. “If they had nuclear weapons that can threaten the United States, it’s intolerable from the president’s perspective,” McMaster told MSNBC’s Hugh Hewitt. Even so, the U.S. would prefer to resolve the threat “short of what would be a very costly war in terms of the suffering of, mainly, the South Korean people,” McMaster said. The meeting in the Philippines this weekend is hosted annually by the Association of Southeast Asian Nations. It runs through Tuesday. Foreign ministers, including Japan’s Kono, questioned the building of outposts in South China Sea, saying the activity has “eroded trust and confidence” and could undermine peace and stability in the region. China has used land reclamation to establish islands and airports to back its claim of much of the waters off its coast. In 2016, an international court rejected China’s bid to secure rights to more than 80 percent of the South China Sea.