Exports in the first seven-months of the year were 14% higher than in January-July 2017, at 248m tonnes, the data showed.
Indonesia’s energy ministry set its July coal reference price at a year-to-date high of USD 104.65/t, amid growing demand from China, with the price rising further to USD 107.83/t in August.
Chinese coal and lignite imports in July rose by nearly 50% year on year to a 4.5-year high of 936,000t/day, according to customs data.
Last month Indonesia revised up its coal production target for this year by 5% to 510m tonnes, in order to boost foreign currency earnings.