You did not mention if the 2 logistic companies are under one financial company or two.
If it is only one, then the cost issue is kind of moote.
1- Delete estimated material not yet issued, and un-issue material already issued but not consummed.
2- Complete the production orders with a quantity of zero and close it. This will create a temporary production result that will later be offset.
3- Transfer the inventories
4- Create production order in other company
5- Delete operations already completed
6- Delete material already issued and consummed
7- Release production order
8- Issue material, etc.
You might have to prepare you costing people to the production results this will initially create.
Hope this helped.