MY VISA EXPIRED IN 5 Days, I AM IN SHANGHAI - I CAN GO TO HONG KONG TO RENEW?

Hi, it's possible for you to get a Chinese visa from HK, and you can have a try!
If you want to work and live in China legally, you are supposed to apply for a work Z type, you should first prepare those documents including your passport and copy of its data page, a completed application form, a recently-taken passport-style photo, and an alien employment permit from your employer. Then, submit the application to office of the commissioner of the ministry of foreign affairs of PRC in HK SAR.