Plant-wise different calculation for VAT on freight condition

Dear Experts,

My client's requirement is to follow two different calculation for their two plants with same pricing procedure.

For Plant 1- (Basic Price +Excise Duties+ VAT) + Freight

For Plant 2 - (Basic Price+excise duties +Frieght) then VAT @ 4% i.e for plant 2, freight should also be VATABLE item.

For Plant 1 i had configured the pricing procedure and its working fine but now for Plant 2 what needs to be done in the same pricing procedure ?

Please advice.

Thanks in advance.