Mr.suleman, the invitation letter from the company in China is not enough for you to apply for China Business Visa, the visa notice sheet is also required, the visa notice sheet is actually an official invitation letter from a duly authorized Chinese organization in China, namely, Ministries and Commissions of the State Council, the Government of all Provinces, Autonomous Regions, and Municipalities directly under the Central Government, and Foreign Affairs Offices and Bureaus of Economy and Commerce thereunder, and departments and units recognized by the Department of Consular Affairs of the Ministry of Foreign Affairs of the People's Republic of China

the company in China can apply for the visa notice sheet for you.