The Security Council passed tougher sanctions against North Korea involving restrictions on the export of copper and other non-ferrous metals

The 15 members of the UN Security Council unanimously passed Resolution No.
2321 on sanctions against the DPRK, demonstrating to the world its determination to
maintain the denuclearization of the Korean Peninsula.
The sanctions target North Korea's fifth nuclear test on September 9, its largest to date
.
The most important part of the new sanctions resolution is to set a cap on North Korean coal exports, which Japanese and South Korean media say will greatly curb the sources
of funding for its nuclear and missile programs.

Reuters said that the main content of the new resolution is to restrict North Korea's export of coal, silver, zinc and other minerals
.
North Korea's annual coal exports are limited to about $400 million, or no more than 7.
5 million tons per year, about 60 percent
less than before.
Banning North Korea from exporting copper, nickel, silver, zinc and other metals would cost North Korea $100 million in revenue
.

In order to cut off North Korea's foreign exchange earnings, the United Nations Security Council passed Resolution 2270 in March this year, which includes "banning the export of coal, iron and iron ore from the DPRK, and stipulating that exports that are used for people's livelihood purposes and do not finance nuclear and missile programs will not be affected
.
" The new resolution passed this time is equivalent to filling a "hole" in Resolution 2270 and setting a ceiling on North Korea's coal exports, so as to prevent North Korea from using the "people's livelihood card" to play the sidelines and earn a large amount of foreign exchange by exporting coal to develop nuclear weapons
.
Agence France-Presse said there were also rare provisions in the new resolution, and if North Korea violated the resolution, it would be deprived of some diplomatic rights
.