It's true that Baiyin City, Gansu Province started a business in the world. There are several reasons why Baiyin City of Gansu Province started its business in the world:

1. Gansu Province has a superior geographical position, which is located in the hub of northwest China, with good traffic conditions and development prospects.

2. Baiyin is rich in mineral resources, such as zinc, copper, gold and coal, which provides a strong support for local economic development.

3. Baiyin municipal government has implemented a series of support policies, including financial subsidies, tax incentives and financial support, which provide a good environment for local entrepreneurship.

4. Baiyin has a relatively complete infrastructure and service system, such as water and electricity supply, logistics and distribution, which provides convenience for the development of local enterprises.

5. Baiyin has also actively carried out investment promotion, attracting a number of well-known enterprises to settle in and injecting new vitality into the local economy.