I will answer many questions one by one: 1: There are two possible ways for offshore companies to set up a number of mainland trading companies in the Mainland. The first way is to launder money by converting legitimate income from the mainland into their money in offshore account. The second way is that purchasing companies need mainland trading companies to re-export their own countries because many foreigners want to make domestic purchases through international trade!

2. Maybe it is money laundering. It can only be said that mainland factories do not have the ability to collect foreign exchange (not every factory has the right to import and export and can freely recycle US dollars). They need RMB to avoid accepting dollars and bear the exchange rate difference themselves!

3 offshore companies basically have a lot of poor tax situation, that is, they can avoid taxes and evade taxes reasonably! The company relationship only involves two companies that pay money and make money, and the transit agent does not!

Is the answer detailed? Ha ha!