Dear Aoyama san
Regarding above,
My set up plan for change Worpermit and Visa form RDC to SST within August.
1. Work Permit
a. Change your position from Manager to President ( RDC)
b. Addition new company (SST)
c. Then you can manage both company in same time when we request extend will use company document both for submit.
After addition in Work Permit
2. Make the letter for finished your responsibility of RDC then the officer will stop Visa of RDC.
Next the Day after void your VISA (RDC).
3. Request Visa for you and your family by submit company document of SST. Then your passport book will show only Visa of SST.
**If a alien get salary or income from where so must to be use document that company for support renew or extend Visa.