# Endorsement

**Northbrook Excess and Surplus Insurance Company**
**Northbrook, Illinois**

## Endorsement

**Named Insured:** International Business Machines Corporation
**Policy No.:** 61906596
**Endorsement No.:** 4

In consideration of the premium charged, it is agreed that Item 1 "Named Insured" of the Declarations is amended to read as follows:

International Business Machines Corporation,
IBM World Trade Corporation, IBM World Trade Europe/Middle East/Africa Corporation and IBM World Trade Americas/Far East Corporation and Science Research Associates, Inc. and any other subsidiary or affiliated corporation provided such other subsidiary or affiliated corporation warrants that it is under the same operative and financial control through the identity of its officers, directors or stockholders and any employee associations thereof.

It is also agreed that the following joint ventures are included as Named Insureds, but only as respects the interest of International Business Machines Corporation:

1) Market Street Associates of St. Louis
2) Discovision Associates
3) Satellite Business Systems
4) 425 Market Street Associates (San Francisco)
5) 2345 Grand Avenue Kansas City Condominium

This endorsement to take effect on the unchanged.
**Countersignature Date:** April 10, 1980
**Authorized Representative:**