Compliance with New York Stock Exchange listing standards on corporate governance

UBS aims to comply with all relevant standards on corporate governance. As a foreign company listed on the New York Stock Exchange, the firm is only required to comply with the rules relating to audit committees and annual certifications. UBS, however, has voluntarily adopted the overwhelming majority of the New York Stock Exchange rules for US companies.

Introduction

On 4 November 2003, the Securities and Exchange Commission (SEC) approved the revised New York Stock Exchange (NYSE) corporate governance rules. Foreign private issuers - such as UBS - were required to comply with the rules on Audit Committees by 31 July 2005 and had to also disclose significant differences and material non-compliance with all other NYSE standards by the first annual shareholders meeting after 15 January 2004. UBS fully complies with the SEC requirements relating to Audit Committees and fulfills the overwhelming majority of the NYSE listing standards on corporate governance. The few exceptions are mainly due to the different legal system in Switzerland and are explained in detail in this section.

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Independence of directors

The Board of Directors (BoD), based on the listing standards of the NYSE, approved "Criteria for defining external Board members' independence", which are published on the firm's website under www.ubs.com/corporate-governance. Each external director has to personally confirm his or her compliance with the criteria. The BoD, at its meeting of 7 February 2008, affirmatively determined that Ernesto Bertarelli, Gabrielle Kaufmann-Kohler, Sergio Marchionne, Rolf A. Meyer, Helmut Panke, Peter Spuhler, Peter Voser, Lawrence A. Weinbach and Joerg Wolle have no material relationship with UBS, either directly or as a partner, controlling shareholder or executive officer of a company that has a relationship with UBS. Each of them also met all other requirements of the BoD and of the NYSE with respect to independence, with the exception of Ernesto Bertarelli. He does not satisfy one of the independence requirements because UBS is the main sponsor to Team Alinghi and Ernesto Bertarelli is the owner of Team Alinghi SA. Otherwise he fully satisfies the NYSE independence requirements. The BoD does not believe that UBS's sponsorship of Team Alinghi impairs Ernesto Bertarelli's independence in any way.

The BoD has also determined that Lawrence A. Weinbach, Rolf A. Meyer and Peter Voser meet the more stringent independence requirements for Audit Committee members. They do not receive directly or indirectly any consulting, advisory or other compensatory fees from UBS other than in their capacity as directors. They do not hold directly or indirectly UBS shares in excess of 5% of the outstanding capital, and none of them serves on the audit committees of more than two other public companies. The BoD determined that all three Audit Committee members are financially literate and that Lawrence A. Weinbach, Rolf A. Meyer and Peter Voser are "financial experts" according to the definitions established by the US Sarbanes-Oxley Act of 2002, Lawrence A. Weinbach being a certified public accountant and having been in the audit and accounting business during most of his professional career, Rolf A. Meyer through his former responsibility as Chief Financial Officer (CFO) of a large listed company, and Peter Voser being the CFO of Royal Dutch Shell plc.

UBS operates under a strict dual board structure mandated by Swiss banking law. No member of the Group Executive Board (GEB) may also be a member of the BoD and vice versa. This structure ensures an institutional independence of the entire BoD from the day-to-day management. Therefore all BoD members are considered non-management directors, although the three executive members of the Chairman's Office are former members of the executive management and are performing their mandate on a full-time basis. The BoD meets regularly without executive management, but including the executive members of the BoD.

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Board committees

UBS has established audit, compensation, nominating and corporate responsibility committees. The charters for all BoD committees are published on www.ubs.com/corporate-governance. Additional information on the BoD committees' mandates, responsibilities and authorities and their activities during 2007 can be found on pages 9-15 of this report.

In addition to these committees, the Chairman and the Vice Chairman of the BoD form a "Chairman's Office", which has clearly defined authorities and duties. It also has responsibility for oversight of the internal audit function (as defined in the Swiss Federal Banking Commission's [SFBC's] Circular Letter on Internal Audit) and acts as Risk Committee of the BoD. For more details see page 13 of this report, the "Organization Regulations UBS AG" with its appendix, and the Charter for the Chairman's Office (www.ubs.com/corporate-governance).

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Differences from NYSE standards

According to Rule 303A.11 of the NYSE Corporate Governance listing standards, foreign private issuers have to disclose any significant ways in which their corporate governance practices differ from those to be followed by domestic companies. The UBS BoD has determined the following differences:

For US listed companies the NYSE rules require:

Responsibility of the Audit Committee for appointment, compensation, retention and oversight of the independent auditors

UBS's Audit Committee has been assigned all these responsibilities, except for appointment of the independent auditors, which - according to Swiss Company Law - is required to be voted upon by shareholders. The Audit Committee assesses the performance and qualification of the external auditors and submits its proposal for appointment, re-appointment or removal to the full BoD, which brings this proposal to the shareholders for vote at the annual general meeting (AGM).

Discussion of risk assessment and risk management policies by Audit Committee

UBS, as a global financial services firm, has a sophisticated and complex system of risk management and control. Risk management and control is the clear responsibility of the business. The BoD, of which the Audit Committee members are part, has authority to define the firm's risk principles and its risk capacity. The Chairman's Office, acting as Risk Committee on behalf of the full BoD, is responsible for monitoring the adherence to the defined risk principles and for reviewing whether the business and control units run appropriate systems for the management and control of risks. The Audit Committee is regularly updated by Group Internal Audit on specific risk issues.

Assistance by Audit Committee of the internal audit function

In accordance with the SFBC's Circular Letter on Internal Audit, dated 27 September 2006, UBS gave the Chairman's Office responsibility and authority for supervising the internal audit function. The complexity of the financial services industry requires in-depth knowledge to allow for an effective supervision of the internal audit function. The Chairman's Office reports back to the full BoD on all important findings, and the Audit Committee is regularly updated directly by the Head of Group Internal Audit.

Responsibility of the Nominating Committee for oversight of management and evaluation by the Board of Directors

Management evaluation - performance of the Group Chief Executive Officer (CEO) and the members of the GEB - is done by the Chairman's Office and reported to the full BoD. All BoD committees perform a self-assessment of their activities and report back to the full BoD. The BoD has direct responsibility and authority to evaluate its own performance, without preparation by a BoD committee.

Proxy statement reports of the Audit and Compensation Committees

Under Swiss Company Law, all reports addressed to shareholders are provided and signed by the full BoD, which has ultimate responsibility vis-à-vis shareholders. The committees submit their reports to the full BoD.

Shareholders' votes on equity compensation plans

Under Swiss Company Law, the approval of compensation plans is not within the authority of the annual general meeting (AGM), but of the BoD. The reason for this approach is that the capital of a Swiss company is determined in the "Articles of Association UBS AG" and, therefore, each increase of capital has to be submitted for shareholders' approval. If equity-based compensation plans result in a need for a capital increase, AGM approval is mandatory. If, however, shares for such plans are purchased in the market, shareholders do not have the authority to vote on their approval.

Non-management directors to meet at least once per year separately, without any directors participating who are not independent because of their employment by the company

Under Swiss Banking laws BoD members are not allowed to assume any day-to-day management responsibility. UBS therefore considers all its BoD members as "non-management directors", despite the fact that two "executive" BoD members perform their mandate on a full-time basis and are remunerated by the company for their services. The BoD meets regularly without executive management, but including the two executive BoD members.

In 2005, the NYSE amended its forms for the annual and interim written affirmation required under Section 303A.12(c) of the NYSE Corporate Governance listing standards. NYSE-listed foreign private issuers are required to submit an annual written affirmation and accompanying exhibits to the NYSE, certifying that it is in compliance with the NYSE corporate governance requirements applicable to foreign private issuers - specifically the Audit Committee requirements and the requirement to provide a statement of significant corporate governance differences. UBS filed the requested affirmation forms and exhibits in mid-July 2005 for the first time. Since 2006, the annual written affirmation has been submitted no later than 30 days after filing the annual report on Form 20-F with the SEC.

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"Corporate Governance Guidelines", "Code of Business Conduct and Ethics" and "Whistleblowing Protection for Employees"

The BoD has adopted corporate governance guidelines, which are published on the UBS website at www.ubs.com/corporate-governance.

The BoD has also adopted a "Code of Business Conduct and Ethics" with an addendum for principal executive, financial and accounting officers or controllers, as required by the US Sarbanes-Oxley Act.

The Audit Committee of the BoD has established rules for the handling of complaints related to accounting and auditing matters in addition to the internal policies on "Whistleblowing Protection for Employees" and on "Compliance with Attorney Standards of Professional Conduct".