FILE PHOTO: Coal barges are pictured as they queue to be pull along Mahakam river in Samarinda, East Kalimantan province, Indonesia, August 31, 2019. REUTERS/Willy Kurniawan/File Photo
FILE PHOTO: Coal barges are pictured as they queue to be pull along Mahakam river in Samarinda, East Kalimantan province, Indonesia, August 31, 2019. REUTERS/Willy Kurniawan/File Photo