To find a company's supply chain use the resources below.
Capital IQ, available on the main (third) floor of O'Neill Library at workstation D2, has supplier and customer information. Enter the company name and click on the relevant links under "Business Relationships" in the left column.
A Bloomberg terminal is available on the main (third) floor of O'Neill Library at workstation D3. To find the supply chain, enter the company's ticker symbol, hit the EQUITY key, they type SPLC and hit enter. i.e. PEP EQUITY SPLC