A common question customers ask PPCP is “What are investment casting material surcharges and why do they exist?” The short answer is they are a good way to address volatile alloy costs. To simplify the pricing process, PPCP has two-component pricings. The first part is the cost of the production process. That includes everything other than the alloy expense. Unlike alloys, the process price does not often change. Alloys, however, regularly change in cost, so PPCP includes a material surcharge that fluctuates with the alloy market price. You can view material surcharges on the PPCP website, here: http://ppcp2.fccumberland814.com/metal-and-energy-surcharge-information/