As you mentioned, you are a teacher and have a stable source of income, so you can basically apply for a credit card.

The following are the materials required for Agricultural Bank of China credit card application

1. Identity proof materials include but are not limited to copies of resident ID cards or military officer certificates. Foreigners applying in mainland China also need to provide Proof of employment and passport.

2. Work and income certification materials: salary certificate, copy of social security (paid for more than half a year).

3. Supporting information for Agricultural Bank of China credit card application: academic qualifications, professional titles, professional qualification certificates, self-owned real estate certificates, self-owned cars

Driving license, current place of residence for the past three months The original of any receipt for telephone, water, electricity or gas bills, a copy of a time deposit certificate issued at the Agricultural Bank of China with an amount exceeding 10,000 yuan, etc.