when dongcai was founded, it was a financial information website, and the main source of its income was the advertising revenue of the website, and it was a to B business. After obtaining the fund sales license in 12 years, Tiantian Fund Network was launched, and the fund sales revenue became the company's main source of income. After the acquisition of Tibet Securities in 15 years, it obtained a brokerage license. Brokerage trading commission and interest income of the two companies gradually account for the highest proportion in the income structure. From the initial to B business to the current to C business, the income contributed by individual customers accounts for more than 95%.