China’s coking coal imports accelerated in June as Mongolia ramped up coal truck deliveries and seaborne arrivals bounced back, with US imports rising to nearly a two-year high.

China imported 6.26 million tonnes of coking coal in June, up by 31 percent from 4.78 million tonnes in May but down by 4 percent from a year earlier, according to Chinese customs data. Total imports during the first half of this year increased by 5 percent to 38 million tonnes.

China’s coal imports from Mongolia reached 2.09 million tonnes in June, down by 22 percent from a year earlier but up by 23 percent from 1.71 million tonnes in May. Mongolian imports rebounded from their lowest level of 49,780 tonnes in March and surpassed the 2 million tonnes mark for the first time in three months, after the country reopened its border in late March and increased the daily number of coal trucks moving through its highway border crossings.