2. Foreign platforms are not illegal.
3. Is it illegal to operate or represent a company on this platform? A, it depends on whether the company you entrust has an agency relationship with foreign platforms. If there is an agency contract (agreement), the relationship between the company and the platform is obligatory. This relationship is similar to the fact that you entrust a domestic securities company to conduct stock trading business, that is to say, the loss of customers is also a market behavior, and there is no fraud, so at most it is to compensate you.
If there is no agency agreement between this company and that foreign platform, it is fraud, not only full compensation, but also legal responsibility.