The selection of the supplier is done according to a certain business review on the market, as well as through certificates, most often ISO, which indicates the quality of the overall management and business of that material supplier. Then the price, payment terms, delivery, and of course the quality of the material itself. Suppliers are ranked according to pre-determined criteria, procedures that are applied in our procurement department.
We have primary and alternative deliveries for all important material types. Because there is no quality if there is no material.