China has banned the export to North Korea of some items with potential dual use in weapons of mass destruction.
The list of items reflects a UN Security Council resolution adopted unanimously in September over North Korea's ballistic missile and nuclear programmes.
The Chinese Ministry of Commerce in a statement gave details of 32 materials, technologies and forms of equipment with potential use related to weapons of mass destruction, including particle accelerators and centrifuges.
In addition, it outlined bans on items with potential dual use in conventional weapons.
The announcement of the export bans comes amid a tightening of exports from China to North Korea. China's exports of fuel to North Korea slowed to a trickle in February.
North Korea has told the United States that it is prepared to discuss denuclearisation of the Korean Peninsula when its leader, Kim Jong Un, meets US President Donald Trump.
