I will prefer Transliteration because it is a very technical term and targeted to specific audience. For understanding of meaning you can refer to following article...
https://www.quora.com/What-is-the-difference-between-private...

--------------------------------------------------
Note added at 6 mins (2018-02-23 13:01:55 GMT)
--------------------------------------------------

"Consider there’s a multinational company that manufactures potato chips called Black. If they need to expand their reach, it’s not possible to manufacture at one place and distribute it. Instead, they ask a favorable distributer called White to manufacture it and sell it under the name of Black. Here according to Black, White is an in-house brand." - From the same link.