Is the validity period of Kunshan residence permit 13?

Effective. Kunshan residence permit is valid for a long time without damage, but the residence permit should be endorsed once a year. A short-term residence permit can be converted into a residence permit within six months after endorsement. If the endorsement is not made within the time limit, the function of using the residence permit will be automatically suspended. Residence permit is an attempt made by some developed cities in China to learn from the "green card" system of developed countries, which has accumulated experience for China to formulate skilled migration measures and eventually form the national "green card" system of China.