You need to apply for Business Visa to China, the most important requirement is Visa notification issued by an authorized unit in China (Visa notification refers to the form of visa notification issued by the government departments, companies and social organizations authorized by the Chinese Foreign Ministry. For detailed information, please consult the foreign affairs office of the province, autonomous region or municipality directly under the Central Government where your host is located).

Or invitation letter from the legally registered company in China.

if you get the visa notification letter or invitation letter, you can easily get a China visa by provide your passport, one passport photo, one filled visa application form.