Not much else other than the limited markings on the plug.
This must be a custom part , you may want to contact Talaria Sting maybe they can help with the manufacture of the part.
I doubt it’s custom as any other connectors they use are off the shelf.
I wasn’t able to find out who is manufacturing that connector. But I did find the part number for a replacement cable. The Battery cable is 50020-56000-000. For example - see Battery Power Connection Sub Cable for Talaria Sting — Stag Motorcycles or Talaria Sting Electric Dirtbike (aebikes.com.au)