Certificate of origin query - Danish product converted in UK

Hi,

Can anyone help me with this query.

Our client is a Danish carpet manufacturer, they send over rolls of carpet and we process it into small pieces that are affixed to printed sample folders.

Is the origin Danish as that is what the presentation is all about, the Danish made carpet product?

Or is it a UK product because we then invoice Denmark for the work we did?

Thanks,

depends whether it is now or after Jan 21 at present it is all EU origin after Jan it depends on whether you are using inward processing