FILE PHOTO: A truck is seen at South African petro-chemical company Sasol’s synthetic fuel plant in Secunda, north of Johannesburg, in this picture taken March 1,2016.REUTERS/Siphiwe Sibeko/File Photo
FILE PHOTO: A truck is seen at South African petro-chemical company Sasol’s synthetic fuel plant in Secunda, north of Johannesburg, in this picture taken March 1,2016.REUTERS/Siphiwe Sibeko/File Photo