CATTI level or above is recognized, and level 3 is basically useless; When you go to a foreign company, you can also get a BEC advanced certificate.

On-the-job graduate students are exempt from English. According to school regulations, some schools can get excellent CET-6 and TOEFL scores.

On-the-job graduate students can't take the English test mentioned above, because their English level is generally CET-6, which is very common.

It is inevitable that all on-the-job graduate students will be exempted from taking the English exam, so it is better not to take the exam.