China did not import any North Korean coal for the second straight month in April, according to recently released figures from the Beijing’s customs agency cited by Reuters on Tuesday.

Imports of what was once the North’s most valuable commodity are limited by UN Resolutions passed in November last year. The UN Security Council (UNSC) capped imports at 7.5 million tonnes, or just over $400,870,018 worth of coal a year.

The measures were aimed at limiting funds for the DPRK’s weapons programs. Prior to the resolution’s passage, China, on average, spent over $100 million a month on North Korean coal shipments.

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