@Pelo: Here is a list of brokers that Admin has written for Indonesian traders based on the criteria:
List of brokers:
@Muhamad: First of all, all the information you need regarding your trading account including deposit and withdrawal (WD) is in the account registration document. This document is your guide as proof of the agreement between you and the Chinese broker.
In other words, if there is a 30% tax that must be paid first at the time of WD, then you should refer to the agreement/document. If there isn't? That means fraud or deception.
Secondly, my experience trading since 2012, I have never encountered any tax (in this case 30%) at the time of WD like you are experiencing. Therefore, I suspect this is a form of fraud. However, I personally don't dare to say it firmly because I have never traded using a Chinese broker (I don't know the regulations there). On average, I use brokers from the UK, Australia, and offshore countries.
I suggest requesting the initial document at the time of account opening (point one above). From there, you can have a basis for the WD issue.
Hopefully it can help, thank you