The 100-page report, obtained by AFP, confirmed that North Korea's two nuclear tests and 26 missile launches last year had allowed Pyongyang to reach "technological milestones in weapons of mass destruction capability and all indications are that this pace will continue."
The Security Council has adopted two resolutions imposing a raft of new sanctions on North Korea, banning minerals exports and restricting banking, but the panel said implementation by UN member-states "remains insufficient and highly inconsistent."
The sweeping new sanctions were aimed at depriving Kim Jong-Un's regime of hard currency revenue needed to finance weapons programs, which the Security Council has said pose a threat to world security.
But the experts concluded that North Korea's "circumvention techniques and inadequate compliancy by member- states are combining to significantly negate the impact of the resolutions."
Only 76 out of 192 countries have reported to the United Nations on steps they are taking to uphold the sanctions, which are mandatory.
In July last year, an air shipment of North Korean military communications materiel sent from China was intercepted in an unnamed country, en route to Eritrea, the report said.
The items were sold by Glocom, a Malaysia-based front company for North Korea's Pan Systems firm, which the panel said is operated by Pyongyang's intelligence agency.
The company has suppliers in China and an office in Singapore.
"This case demonstrates the increasingly sophisticated nature of evasion of sanctions by the Democratic People's Republic of North Korea and illustrates important and previously unknown trends," said the report.
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