What is E7 visa ?
For most E-7 occupations, changing or adding a workplace is handled by reporting to the Immigration Office within 15 days of the change; for certain designated occupations, prior permission is required.
If you were dismissed or left for reasons attributable to you without your previous employer’s consent, the report procedure does not apply and a workplace change permission or a new visa issuance certificate application is needed. If the previous employer closed down or did not pay wages, supporting documents can replace the employer’s consent letter.
If your employment ended and you could not find another workplace before your stay expires, a change to a D-10 (job seeker) visa may be an option; the conditions depend on your case.
Please check the requirements for your situation with the competent Immigration Office.