The reason why Tang Xinglun has assets of 1.5 billion is because he has run many companies and investments. Tang Xinglun is a successful entrepreneur and investor. He has investment and entrepreneurial experience in multiple industries, including real estate, finance, medical care, education, etc. He has founded several companies and held important positions in these companies. In addition, he also actively participates in investments in financial markets such as stocks, futures, and foreign exchange. These experiences and investments have allowed him to successfully accumulate a large amount of wealth. According to reports, his assets have reached billions of yuan. These assets mainly come from his business and investment income.