Extract BOM Component Scrap %

Hi,

I would like some help.

So far I have extracted the component and the percentage scrap (all the materials with 3%) using table STPO

I now need  a material where used to list, the only transaction i can find is CS15 one at a time.

I have 8000 components so the wher used list will be pretty long.

Does anyone know how to do this?

Regards

Frankie