Sources of information about UBS

Publications

This Handbook is available in English and German.

(SAP no. 80532).

Annual Review 2005

Our Annual Review contains a description of UBS and our Business Groups, as well as a summary review of our performance in 2005. It is available in English, German, French, Italian, Spanish and Japanese. (SAP no. 80530).

Financial Report 2005

The Financial Report 2005 contains our audited financial statements for the year 2005 and related detailed analysis. It is available in English and German. (SAP no. 80531).

Quarterly reports

We provide detailed quarterly financial reporting and analysis, including comment on the progress of our businesses and key strategic initiatives. These quarterly reports are available in English.

Compensation Report 2005

The Compensation Report 2005 provides detailed information on the compensation paid to the members of UBS’s Board of Directors (BoD) and the Group Executive Board (GEB). The report is available in English and German. (SAP no. 82307-0501).

The same information can also be read in the Corporate Governance chapter on page 98.

The making of UBS

Our “The making of UBS” brochure outlines the series of transformational mergers and acquisitions that created today’s UBS. It also includes brief profiles of the firm’s antecedent companies and their historical roots. It is available in English and German. (SAP no. 82252)

How to order reports

Each of these reports is available in PDF format on the internet at www.ubs.com/investors in the reporting section. Printed copies can be ordered from the same website by accessing the order / subscribe panel on the right-hand side of the screen. Alternatively, they can be ordered by quoting the SAP number and the language preference where applicable, from UBS AG, Information Center, P.O. Box, CH-8098 Zurich, Switzerland.

Information tools for investors

Website

Our Analysts and Investors website at www.ubs.com/ investors offers a wide range of information about UBS, financial information (including SEC filings), corporate information, share price graphs and data, an event calendar, dividend information and recent presentations given by senior management to investors at external conferences. Our information on the internet is available in English and German, with some sections in French and Italian.

Messaging service

On the Analysts and Investors website, you can register to receive news alerts about UBS via Short Messaging System (SMS) or e-mail. Messages are sent in either English or German and users are able to state their preferences for the topics of the alerts received.

Results presentations

Senior management presents UBS’s results every quarter. These presentations are broadcast live over the internet, and can be downloaded on demand. The most recent result webcasts can be found in the Financials section of our Investors and Analysts website.

Form 20-F and other submissions to the US Securities and Exchange Commission

We file periodic reports and submit other information about UBS to the US Securities and Exchange Commission (SEC). Principal among these filings is our annual report on Form 20-F, filed pursuant to the US Securities Exchange Act of 1934.

Our Form 20-F filing is structured as a “wrap-around” document. Most sections of the filing are satisfied by referring to parts of this Handbook or to parts of the Financial Report 2005. However, there is a small amount of additional information in Form 20-F which is not presented elsewhere, and is particularly targeted at readers in the US. You are encouraged to refer to this additional disclosure.

You may read and copy any document that we file with the SEC on the SEC’s website, www.sec.gov, or at the SEC’s public reference room at 100 F Street, N.E., Room 1580, Washington, DC, 20549. Please call the SEC at 1-800-SEC-0330 (in the US) or at +1 202 942 8088 (outside the US) for further information on the operation of its public reference room. You may also inspect our SEC reports and other information at the New York Stock Exchange, Inc., 20 Broad Street, New York, NY 10005. Much of this additional information may also be found on the UBS website at www.ubs.com/investors, and copies of documents filed with the SEC may be obtained from UBS’s Investor Relations team, at the addresses shown on the next page.