Questionable sites, not even going to link them. But Forbes states the following:

Some accounts on social media are now circulating the claim that Niger has lifted prices from €0.80 per kilogram to €200. So far, there is no evidence for this beyond themselves quoting each other. The claim seems to trace back to a small digital outlet in Nigeria. Embarrassingly, the website has been confused as being from Niger itself.

https://www.forbes.com/sites/eliasferrerbreda/2023/09/12/more-rumours-what-is-really-happening-with-nigers-uranium/

• Will you really use that many?

I used to buy engine oil and filters in bulk, then car needed to be totaled. Difficult selling oil as a private.