What is a WMU in PA?

Excuse me, could you please clarify what you mean by "WMU in PA"? Are you referring to a specific term or acronym related to finance, cryptocurrency, or perhaps a regulatory body within the state of Pennsylvania? If so, I'd be happy to provide a more detailed explanation or definition, assuming I am familiar with the term. However, without further context, it's difficult to give an accurate response. Could you please elaborate or provide additional information?