Inquiry regarding zero-rate tax application when export quantities of raw materials and manufactured goods differ

We are in a transaction involving domestic raw material supplier A, our company B (the manufacturer), and overseas buyer C. To produce 10 units of a manufactured product called X, we purchased 100 units of raw material Y from company A. Out of these, we used only 10 units to manufacture 10 units of product X, which were then exported to company C. Since the quantity of raw materials purchased and the quantity of manufactured goods exported are different, I am wondering if the zero-rate tax application is still possible in this case.