Any specific bank balance has to maintain for the first time business visit to china?

If you apply for a China business visa, you have to provide the covering letter from your company or employer addressed to the visa office instead of any personal financial proof. You also have to provide invitation letter from a China company or confirmation Letter of Invitation* from a duly authorized Unit 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.