The platform charges fee casually.
The platform charges handling fee if the withdrawal exceeds $50, while that is canceled by most trade markets. But the lot I traded on margin has exceeded half of the fund.
Others
The following is the original recommendation
出金乱收费。
出金超过50美金要手续费。几乎所有贸易场的都是规定超过50美金不收手续费,而且我已经操作了本金过半的保证金的手数。