THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Plexus Corp. (PLXS)

1/3/2006 Proxy Information

Mr. Nussbaum serves as Chairman of Plexus Corporation. He served as Chief Executive Officer from 2001 to 2002 and prior to that, was President and Chief Operating Officer.

Plexus has a policy that transactions with its executive officers and directors must be on a basis that is fair and reasonable to the company, in accordance with PlexusÕ Code of Conduct and Business Ethics and other policies, and be approved by either a disinterested majority of the board of directors or by the Audit Committee. There were no such reportable transactions in fiscal 2005.

1/4/2005 Proxy Information

Mr. Nussbaum serves as Chairman of Plexus Corporation. He served as Chief Executive Officer from 2001 to 2002 and prior to that, was President and Chief Operating Officer.

1/2/2004 Proxy Information

From time to time, Plexus executive officers and directors are prohibited from selling Plexus stock because of the existence or potential existence of material non-public information. Mr. Sabol, a former executive officer, had intended to sell Plexus' shares during one of these time periods to finance a real estate purchase. Because Plexus' activities prohibited him from making a sale, Plexus loaned Mr. Sabol $260,000 on March 13, 2000. The loan was repayable upon demand, bore interest at $250 per month, and was secured by Plexus shares. The loan was originally for a maximum period of eight months, but was extended to become a demand note by mutual agreement in fiscal 2001. Interest accrued monthly. The maximum amount due in fiscal 2002 was $263,500. Mr. Sabol repaid the loan in full in December, 2002. Due to the nature of this transaction, while Plexus believes that it was fair to Plexus, it is not a type of transaction that would have been offered to a third party, or likely would have been offered to Mr. Sabol by a third party. Because of subsequent changes in the law, Plexus will no longer make similar loans to its executive officers.