First of all, according to Article 78 of the Law of the China on the Administration of Entry and Exit, aliens who reside illegally shall be given a warning. If the circumstances are serious, they shall be fined 500 yuan for each day of illegal residence, with a total amount not exceeding 10000 yuan, or detained for not less than five days but not more than 15 days.
However, as this visit to China is for actual work, based on experience, the result of visa expiration is to apply for a new stay visa with a validity period of one month after receiving a penalty. The visa validity period for entry and exit will vary from 10 to 30 days depending on the actual situation. Then apply for a work visa again.
