for import pricing procedure how to add cst condition

HI Guru's

Help me to this critical scenario

My client procuring material from local vendor but the material procured by third party vendor from some YYY foreign vendor  in this case my client is getting all the import conditions like (12+2+1+4) with CST 2 %.

In SAP for import pricing procedure how to add this CST %

mail me if any solutions is there karthik.btech30@gmail.com

Regards

karthikk

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