Porter's value chain

I have always thought it's a bit odd too, but it's how dear Mr Portermset it out. The justification is that procurement covers all purchasing, not just material or goods for resale. So, purchase of non-current assets is there. Therefore, this support activity can span all the primary activitiew (eg paying for the design of a better website to enhance sales and marketing). However, it is likely that most procurement effort is spent on the purchase of raw material.