I found one more that needs to be added, which is the “Northeast Kiangsi Soviet”. In the summary of those .pdfs, it erroneously labelled it as “Northwest” (corresponding to a different Soviet), but all throughout the .pdf, it is only refered to as “Northeast”. The banknotes also specify Northeast, and Pick agrees with that.
I added both of these on this sheet, highlighted in Green:)
https://docs.google.com/spreadsheets/d/1wLkS0HcSUmAFEDoImWbPjhJMz5T_k_wXP81MwCodCyg/edit?usp=sharing
** EDIT: I did find this one under an alternate name, but I added “Northeast Kiangsi Soviet” as an alternate name to search on the above sheet.