The penalties, approved unanimously Saturday by the Security Council, aim to cut off roughly one-third of North Korea's estimated $3 billion in annual exports, ostensibly starving the nation of funds for its weapons programs.
The U.S. -drafted resolution bans North Korean exports of coal, iron, iron ore, lead, lead ore and seafood following Pyongyang's two intercontinental ballistic missile tests in July.
ASEAN countries have argued that is hard since its members do not have substantive ties with North Korea.
"They're nearly going from sanctions to embargo and really trying to slam the North Korean economy", Delury said.
In a statement to the Manila forum on Monday, Pyongyang said it would never place its nuclear program on the negotiating table as long as the United States maintained a hostile policy against the North.
In a separate statement, the White House said the two leaders "affirmed that North Korea poses a grave and growing direct threat to the United States, South Korea, and Japan, as well as to most countries around the world".
"The Chinese side urged the North Korean side to calmly handle the resolutions. and to not do anything unbeneficial towards the global community such as a nuclear test", Wang said. He would not go into detail, but said the sanctions vote had been a "good outcome".
"We emphasized the importance of non-militarization and self-restraint in the conduct of all activities by claimants and all other states, including those mentioned in the DOC that could further complicate the situation and escalate tensions in the South China Sea", the ministers said in the 46-page document. North and South Korea are technically still at war because their 1950-53 conflict ended in a truce, not a peace treaty.
Foreign ministers of the Association of Southeast Asian Nations (ASEAN) on Saturday formally endorsed the framework of the code of conduct (COC) to address disputes in the South China Sea/West Philippine Sea for eventual adoption by the regional grouping and China.
But according to South Korean news agency Yonhap, citing an unnamed government source, Ri told Kang during their meeting Sunday that South Korea's offer of talks "lacked sincerity".
North Korea's state-run KCNA news agency said Monday that the country seriously condemns and completely rejects the United Nations sanctions. "We also fully recognize the trend towards relaxation in the South China Sea", he added.
"We'll know it when we see it", Tillerson said.
Earlier, U.S. Secretary of State Rex Tillerson said new United Nations sanctions targeting North Korea are a "very good outcome".
"When the conditions are right then we can sit and have a dialogue around the future of North Korea so they feel secure and prosper economically", Tillerson told reporters at the same regional security meeting.
North Korea reacted angrily, vowing to bolster its nuclear arsenal and launch "thousands-fold" revenge against the United States.
But Tillerson says it's not as simple as North Korea stopping launches for a few days or weeks.