After the two brothers come back from school, they collectively work for others. It is better for the two brothers to start a business together. So they followed the "He Jie" signboard left by their father and began to appear as family factories, producing daily-use hardware products. At the beginning of our business, it was during the great domestic revolution that farmers' associations and various mass organizations rose all over the country. He Jie Factory seizes this opportunity and specializes in manufacturing all kinds of badges, because the products are in short supply because of their high quality and low price. 1932 with the development and expansion of production, factories have been set up in Guangzhou and Shantou to manufacture military supplies, including badges and scout supplies, as well as gas masks and helmets, for the exclusive use of Guangxi warlord Bai Chongxi and Guangdong warlord Chen. 1934, Zheng Yi's brother saw that Hong Kong became increasingly prosperous with the rise of industry, mining and railway, and gradually became the radiation center of international trade in Europe, America and the Far East, so he set up a branch factory in Hong Kong. After the outbreak of War of Resistance against Japanese Aggression, Zheng Yizhi produced a large number of engineering equipment, military pots, helmets, gas masks and other military materials in his Hongkong branch to meet the urgent needs in wartime. At that time, the anti-Japanese military wires were mostly copper wires, but the raw materials were very scarce. Zheng Yizhi set up a factory in Liuzhou, Guangxi in the late period of the Anti-Japanese War, purchasing steel and radium as raw materials to produce military communication equipment such as wires. In this way, it not only served the war of resistance, but also developed and expanded production. The Pacific War began at 194 1. At this time, He Jie has four factories in Hong Kong, and its business has also grown. However, with the fall of Hong Kong, Zheng Yi's brother left Hong Kong without being humiliated by the Japanese aggressors, and adhered to national integrity. All his assets in Hong Kong were confiscated by the Japanese aggressors. Their brothers moved the main business of He Jie factory to the mainland, and moved to Guiqianchuan to serve the anti-Japanese army and produce military supplies. After the victory of the Anti-Japanese War, Zheng Yizhi and his brothers quickly returned to Hong Kong to resume their business. Because of He Jie's clear anti-fascist stance and actions, they got the support of the Hong Kong government. The first business that the factory resumed production was to order 1 10,000 iron beds for the British army. The required steel is specially approved by the Hong Kong government, purchased by the Japanese "Demand Department" at a low price, and supported by HSBC. Although they only had 8,000 yuan when they returned to Hong Kong, He Jie appeared again.
After the success, Zheng Yizhi experienced hardships in starting a business, and her career was ups and downs. She kept a low profile and did not show off easily. He often encourages his younger generation: "first, be diligent, down-to-earth, step by step, and don't aim too high." As long as you are creative, willing to work hard and willing to work hard, you will definitely get ahead. " This is also a summary of the growth experience of this "industrial king". Zheng Yizhi and his brothers live in harmony. Everyone is working hard. He works 15 and 16 hours every day and arrives at the office building at 8 o'clock every morning. He doesn't dance or drink, just works hard. At the same time, with his keen vision and creative decision-making, he created one miracle after another in his career, making He Jie develop into a huge industrial kingdom.