Cross Company Code Transfer

Dear Experts ,

we have following requirement from the Client-

Previously the client company is having two different company codes now they want to transfer all the employees in the two company codes to one new company code

Here My Requirement Is how to Copy all The Info types Data from Previous company Code to New Company Code ,Please experts give me valuable Inputs ,I am able to execute Re-Hiring And Separation on the Same day But I am Unable To Copy data from all the Info types to New Personal number .

Thanks In Advance

Regards ,

Anusha .