US President Donald Trump later complained that trade had gone up between the countries after he had called on Beijing to use its diplomatic and economic clout over its neighbour to convince Pyongyang to drop its nuclear programme.
China Customs said Thursday that the country's overall trade with North Korea had grown 10.5 percent in the first half of the year. They had risen by 18% in the quarter ended March.
China announced in February the suspension of coal imports from the North, striking a blow at a major source of income for the hermit state.
A high-ranking South Korean government official on Thursday claimed there is no evidence that money from the inter-Korean industrial complex in Kaesong was used to finance North Korea's nuclear and missile programs. "So much for China working with us - but we had to give it a try", Trump said in tweet last week.
On Wednesday, China's foreign ministry bristled at questions about ongoing trade with Pyongyang that seems to skirt United Nations sanctions meant to isolate the regime - and reiterated its hostility to broader economic sanctions. "However, it is inviting its ultimate doom by resorting to the sanctions and pressure campaign against the DPRK", it also said.More news: Sigurdsson's 'head's gone' after Everton £40m bid
The two-day summit in Hamburg, Germany, wrapped up Saturday with a declaration that made no mention of North Korea, even though the meetings came just a few days after the regime test-fired an intercontinental ballistic missile created to hit the continental U.S.
NAN reports that during a UN Security Council meeting on July 7, USA ambassador to the UN Nikki Haley, threatened secondary sanctions if the council could not agree on new sanctions.
But Beijing, as it has in the past, largely resisted Trump's demands.