THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

International Rectifier Corporation (IRF)

10/18/2005 Proxy Information

The Company holds as a strategic investment common stock of Nihon Inter Electronics Corporation (“Nihon”), a related party. At June 30, 2005, the Company owned approximately 17.5 percent of the outstanding shares of Nihon. The Company’s Chief Financial Officer was the Chairman of the Board and a director of Nihon through June 28, 2005. In addition, the general manager of the Company’s Japan subsidiary is a director of Nihon. Although the Company has representation on the Board of Directors of Nihon, it does not exercise significant influence, and accordingly, the Company records its interest in Nihon based on readily determinable market values in accordance with SFAS No. 115. The activities and compensation of the Chief Financial Officer’s responsibilities at Nihon are described in a Consulting Services Agreement between the Company and Nihon, dated April 1, 2004 which expired on March 31, 2005. (See also Footnote 3 of the Summary Compensation Table on page 12.)

In June 2002, the Company entered into agreements to license certain technology to Nihon and to contract Nihon to manufacture certain products. The estimated value of the licensing and manufacturing agreements are $5.4 million and $2.0 million, respectively, of which $3.3 million and $2.5 million was recognized as revenue for fiscal year 2004 and 2003, respectively. No revenue was recognized under these agreements for fiscal year 2005.

Eric Lidow is the father of CEO Alexander Lidow.

10/15/2004 Proxy Information

Eric Lidow is the father of CEO Alexander Lidow.

The Company holds as a strategic investment common stock of Nihon Inter Electronics Corporation ("Nihon"), a related party. At June 30, 2004, the Company owned approximately 17.5 percent of the outstanding shares of Nihon. The Company's Chief Financial Officer Michael P. McGee is presently the Chairman of the Board of Nihon. In addition, the general manager of the Company's Japan subsidiary is a director of Nihon. Although the Company has representation on the Board of Directors of Nihon, it does not exercise significant influence, and accordingly, the Company records its interest in Nihon based on readily determinable market values in accordance with SFAS No. 115. The activities and compensation of the Chief Financial Officer's responsibilities at Nihon are described in a Consulting Services Agreement between the Company and Nihon, dated April 1, 2004 which expires on April 1, 2005.

In June 2002, the Company entered into agreements to license certain technology to Nihon and to contract Nihon to manufacture certain products. The estimated value of the licensing and manufacturing agreements are $5.4 million and $2.0 million, respectively, of which $3.3 million and $2.5 million was recognized as revenue for fiscal year 2004 and 2003, respectively. No revenue was recognized under these agreements for fiscal year 2002

Mr. Mueller was Executive Vice President of External Affairs for International Rectifier Corporation.

10/10/2003 Proxy Information

Eric Lidow is the father of CEO Alexander Lidow.