Japan plans to fast-track talks with South Africa on a yen-denominated energy loan, while promoting its technology to blend ammonia with coal to reduce carbon emissions in a country that still generates most of its electricity from one of the dirtiest fossil fuels. The loan would be used by South Africa to extend its own energy transition aims, Japanese diplomatic officials said, asking not to be identified in line with government practice, during a visit by its Foreign Minister Toshimitsu Motegi. The size of the loan was not specified.