In September 2018 Ebay seller world-plates from Taipei in Taiwan was trying to sell this fake South Sudan plate. He says it is a used plate but it is not, it is a complete fake.
These South Sudan plates appeared on a Chinese manufacturer’s website and are of a design that was never used in South Sudan. They were bought by uzdecor-com (along with many, many other plates) who eventually admitted they were fakes direct from China. Search my photos here for several photos of fake plates from uzdecor.
ALWAYS check with someone or some group or some website if the item for sale is even possibly a real genuine, used number plate.