 After the first world war, the foreign fire broke out, domestic supply and demand were tense, and the price of iron rose. In five years, Hengfeng made 600,000 yuan. After Lu Peizhi went bankrupt, he opened a large oil mill and gold mill in Shanghai. He was once the president of the Shanghai Steel Industry Association. He also founded the Hengchang Coal Mill with Zhou Shunqing and Zhu Dachun.