The semiconductor manufacturing process needs supplies of various materials including chemical elements and compounds. Globally sourcing these various inputs and acquiring a secure supply is a supply chain challenge. Geopolitical tensions and other supply chain disruptions can impact the availability of such critical process inputs. Supply chain managers need a process to identify and prioritize the vulnerabilities of key material inputs. This proposed CHEST project will develop a methodology to assess the vulnerability associated with material inputs for semiconductor manufacturing. By identifying the set of material inputs and their geographic sources of supply, we will identify the most vulnerable materials. This information can support supply chain risk management and procurement strategies that mitigate risks of disruptions in supply.