I use paid staff for my subtitles. This is how it usually work
- One staff member creates Chinese subtitles. Usually a Native Chinese Speaker
- A staff maybe Fluent to native in both languages translates into English
For Japanese dramas, it is much easier to find Japanese subtitles at D Addicts. or At the Gifted Ones.
If you can provide me with the Chinese, Korean or Japanese subtitles then there is a great chance that I will you the English Subtitles