The earliest and simplest way to launder money is to open an account in Switzerland. I have a lot of unexplained money and then try to remit it to Switzerland in China, because in the past, regardless of the source of the money, Switzerland also set up companies in China and abroad, and then remitted the money back to China in the name of foreign companies, saying that it was beneficial to business. But since 9 1 1, Swiss banks have been very nervous, so the quota is too high.
The most popular thing now is to buy jewelry. I use my black money to buy jewelry at home, and then take it abroad for cash. I will remit it to the casino first, and then I will let the casino remit it back to China.
There are fund companies to open abroad and investment companies to open at home. You can make futures, short and long at the same time, thus moving money from one side to the other. Because it's an investment, no one will doubt that there are many ways of money laundering. I'm just talking about a scratch.