This photo taken on March 29, 2016 shows imported coal being unloaded from a cargo ship at a port in Lianyungang, east China's Jiangsu province. 
Huge industrial overcapacity will drag on China's growth this year, the Asian Development Bank (ADB) said on March 30 as it cut its forecast for the world's second-largest economy. / AFP / STR / China OUT        (Photo credit should read STR/AFP/Getty Images)
China cuts all coal imports from North Korea
01:45 - Source: CNN

Story highlights

Beijing is Pyongyang's biggest trade partner

The UN Security Council imposed toughest sanctions yet on N Korea in November 2016

Beijing CNN  — 

China says it will halt all coal imports from North Korea, starting Sunday and for the rest of 2017, amid growing tensions on the Korean Peninsula following Pyongyang’s most recent missile test last week.

China’s Ministry of Commerce, in a public notice jointly issued with the country’s customs agency Saturday, said the decision was made to comply with a UN Security Council resolution that China helped draft and pass last November.

Resolution 2321 imposed some of the toughest sanctions yet against the North Korean regime, after it disregarded an earlier UN ban to test what it said was a nuclear warhead in September 2016.

“Imports of coal produced in North Korea – including shipments already declared to the customs but yet to be released – will be suspended for the remainder of this year,” said the statement posted on the ministry’s website.

Coal is North Korea’s main export and an important source of foreign currencies for its fragile economy. Most of North Korea’s exported coal is shipped to China, its only major ally on the global stage.

North Korean economist Ri Gi Song, a researcher at the Institute of Economics at the Academy of Social Sciences, said the coal ban would not have a big effect.

“We have been exporting some good quantities of coal, but we didn’t export very much,” he said. “(Therefore) we don’t feel very much affected by the so-called restrictions.”

He said the export of other raw materials – such as magnesite and graphite, used in smartphone production – is “very important” for major world economies. North Korea sits on more than half of the world’s deposit of those two raw materials, Ri said.

This undated picture released from North Korea's official Korean Central News Agency (KCNA) on January 12, 2014 shows North Korean leader Kim Jong-Un (front L) inspecting the command of Korean People's Army (KPA) Unit 534.    AFP PHOTO / KCNA via KNS    REPUBLIC OF KOREA OUT   THIS PICTURE WAS MADE AVAILABLE BY A THIRD PARTY. AFP CAN NOT INDEPENDENTLY VERIFY THE AUTHENTICITY, LOCATION, DATE AND CONTENT OF THIS IMAGE. THIS PHOTO IS DISTRIBUTED EXACTLY AS RECEIVED BY AFP    ---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS        (Photo credit should read KNS/AFP/Getty Images)
North Korea sanctions: what's next
02:18 - Source: CNN

North Korea claimed success in its February 12 test of a new medium long-range ballistic missile, the Pukguksong-2. China voiced its opposition to the launch and joined other members of the UN Security Council in condemning Pyongyang’s action.

When reports first surfaced last week that authorities in an eastern Chinese port rejected a large shipment of coal from North Korea, a Ministry of Foreign Affairs official declined to confirm the story but reiterated Beijing’s long-held position.

“China fully, earnestly and faithfully enforces relevant Security Council resolutions, which include clear provisions on North Korea’s coal exports,” said ministry spokesman Geng Shuang last Wednesday.

north koreans praise missile test despite sanctions dnt ripley_00001002.jpg
N. Koreans praise missile test despite sanctions
03:00 - Source: CNN

Strained relations

In their first meeting, new US Secretary of State Rex Tillerson on Friday stressed to Chinese Foreign Minister Wang Yi the growing threat posed by North Korea’s nuclear and missile programs.

Tillerson urged China to “use all available tools to moderate North Korea’s destabilizing behavior,” said acting US State Department spokesman Mark Toner.

While pledging to strictly implement UN-imposed sanctions, Wang told reporters in Germany, where both he and Tillerson were attending a G20 ministerial conference, that there is still hope to resolve the North Korea nuclear issue through diplomacy, and Beijing is willing to facilitate multilateral talks, according to a statement released by the Chinese foreign ministry.

In late January, several Chinese ministries jointly issued an extensive list of prohibited items for export to North Korea in compliance of Resolution 2321.

That ban covered military-civilian dual-use articles related to weapons of mass destruction – including not only chemicals and weapons technologies, but also design software, high-speed cameras and truck chassis.

RELATED: North Korea sanctions: Is China enforcing them?

A foreign ministry official pointed to the list at the time as clear evidence to rebut skepticism over China’s determination to implement UN sanctions against North Korea, its neighbor and longtime communist ally.

Beijing remains Pyongyang’s biggest trade partner, providing an economic and political lifeline to the increasingly isolated regime.

China views North Korea as a strategic buffer between itself and South Korea, which has a sizable US military presence. It also fears a potential refugee crisis on its doorstep if the Pyongyang regime suddenly collapses.

RELATED: CNN inside the world’s most reclusive nation

Bilateral relations have become strained, however, since North Korea’s young leader, Kim Jong Un, came to power after his father’s death in late 2011.

The Chinese leadership is said to be growing frustrated with Kim’s defiant stance on the nuclear issue and the resulting instability in Northeast Asia.

CNN’s Will Ripley contributed reporting from Pyongyang, North Korea.