How long are the U.S. B- 1 and B-2 visas valid? How to renew it?

American B- 1 and B-2 visas are valid for one year, and there are two ways to renew them in the United States:

First, CITIC Bank does not interview and send materials;

The second is to make an appointment for an interview at the embassy.

Note: as long as you change schools or i-20 midway, you need to go to the embassy for an interview. Only students with i-20 and first-time visas in the same school can apply for the interview-free service of CITIC Bank.

Materials to be submitted for renewal: The most important materials are valid original i-20 and school transcripts. Other materials: photos, visa form DS156/157/158, visa application fee.

Applicants must apply for the same type of US visa as last time (e.g. b 1/b2, f- 1, etc. ), and the final visa was applied in Shanghai; (Note: To sign a contract in Shanghai for the first time, you need to apply for interview-free service in Shanghai; If it is the first time to sign a contract in Beijing, you need to apply for interview-free service at Beijing CITIC Bank. As this explanation is posted on the website of Shanghai Consulate, only Shanghai is mentioned)