# Excess Liability Insurance Contract Document

**North American Casualty Division**

**Insured:** INTERNATIONAL BUSINESS MACHINES CORPORATION

**Layer:** USD 200,000,000 excess of USD 200,000,000

**Underwriter:** Argo Re

**Period:** 21 May 2010 to 21 May 2011

**Aon Limited**
- **Registered Office:** 8 Devonshire Square ~ London ~ EC2M 4PL ~ United Kingdom
- **Registered in London No.:** 210725
- **VAT Registration No.:** 480 8401 48

**Aon Limited is authorised and regulated by the Financial Services Authority in respect of insurance mediation activities only**

**Contact Information:**
- **Address:** 8 Devonshire Square, London, EC2M 4PL, United Kingdom
- **Tel:** +44 (0) 20 7623 5500
- **Fax:** +44 (0) 20 7621 1511