[colechristensen]

Argentina, Brazil, China, France, Germany, India, Iran, Japan, the Netherlands, North Korea, Pakistan, Russia, the United Kingdom, and the United States

There’s the list of “known” meaning publicly acknowledged countries with operating enrichment facilities, more than 5.

Notice it doesn’t include Israel which more or less everyone believes has nuclear weapons meaning enrichment facilities. There are several other countries which are very reasonably believed to have or have had enrichment programs.

[dredmorbius]

South Africa had at one time.