Who is the manufacturer of the tablet Medion Akoya E6234?

Years ago I gave this notebook to a friend in Vietnam. Now, however, his battery has broken and he can't get a replacement battery from Medion in his country. The shipment of a new battery by mail is also rejected because of fire. The only thing that would be helpful if he knew the tablet manufacturer to search for the original battery in Hanoi. Can someone help me?

Surprisingly, the manufacturer is https://www.medion.com/de/shop.

https://www.medion.com/de/service/

Medion is the dealer

Not only. Also the manufacturer.

https://de.wikipedia.org/...iki/Medion

Unfortunately I don't have an MSN number