PERLES Plus Linked to S&P 500 Information Technology Index Issued by UBS AG, London Branch Cash settled SVSP/EUSIPA Product Type: Bonus Certificate (1320) Valor: 38180153 Final Terms This Product does not represent a participation in any of the collective investment schemes pursuant to Art. 7 ff of the Swiss Federal Act on Collective Investment Schemes (CISA) and thus does not require an authorisation of the Swiss Financial Market Supervisory Authority (FINMA). Therefore, Investors in this Product are not eligible for the specific investor protection under the CISA. Moreover, Investors in this Product bear the issuer risk. This document (Final Terms) constitutes the Simplified Prospectus for the Product described herein; it can be obtained free of charge from UBS AG, P.O. Box, CH-8098 Zurich (Switzerland), via telephone (+41-(0)44-239 47 03), fax (+41-(0)44-239 69 14) or via e-mail ([email protected]). The relevant version of this document is stated in English; any translations are for convenience only. For further information please refer to paragraph «Product Documentation» under section 4 of this document. 1. Description of the Product Information on Underlying Underlying(s) Initial Underlying Level Strike Level Kick-Out Level Conversion Ratio S&P Information Technology 1,013.53 1,013.53 651.19 1:0.9867 Index (100.00%) (64.25%) Bloomberg: S5INFT / Valor: 19119212 Product Details Security Numbers Valor: 38180153 / ISIN: CH0381801536 / WKN: UV0PWD Issue Size up to 5,000 Units (with reopening clause) Issue Price USD 1,000.00 (unit quotation) Settlement Currency USD Dates Launch Date 15 September 2017 Pricing Date ("Pricing") 20 September 2017 Payment Date (Issue Date) 27 September 2017 Last Trading Day/Time 21 September 2020 / 17:15 CET Expiration Date ("Expiry") 21 September 2020 (subject to Market Disruption Event provisions) Redemption Date 28 September 2020 (subject to Market Disruption Event provisions) Redemption The Investor is entitled to receive from the Issuer on the Redemption Date an amount in the Settlement Currency, according to the following scenarios: Scenario 1 If a Kick-Out Event has NOT occurred the Investor will receive an amount equal to the higher of the Strike Level or the Expiration Value, taking into account the Conversion Ratio. Scenario 2 If a Kick-Out Event has occurred, the Investor will receive the Expiration Value, taking into account the Conversion Ratio. Contact: UBS AG, P.O. Box, 8098 Zürich Private Investors: Please contact your client advisor or send an email to [email protected] Internet: www.ubs.com/keyinvest Product Hotline: +41-44-239 76 76* Investors outside of Switzerland should consult their local client advisors. Please note that calls made to the numbers marked with an asterisk (*) may be recorded. Should you call one of these numbers, we shall assume that you consent to this business practice. 2/6 Valor: 38180153 Final Terms Kick-Out Event A Kick-Out Event shall be deemed to occur if at any time on any Exchange Business Day during the period from and including the Pricing Date to and including the Expiration Date the level of the Underlying quoted by the Related Exchange is at or below the Kick-Out Level, as reasonably determined by the Calculation Agent. Expiration Value Official closing value of the Underlying on the Expiration Date on the Related Exchange, as determined by the Index Sponsor(s). Product Structure The PERLES Plus is a product that provides participation in the performance of the Underlying. This means that the Investor will receive a redemption value which reflects the performance of the Underlying, whereby this redemption value will not be lower than the Strike Level, if the Underlying never touches or breaches the Kick-Out Level during the life of the product. General Information Issuer UBS AG, Zurich and Basel, Switzerland, acting through its London Branch Issuer Rating A1 Moody's / A+ S&P's / A+ Fitch Issuer Supervisory Authority Swiss Financial Market Supervisory Authority (FINMA). London Branch additionally Financial Conduct Authority (FCA) and Prudential Regulation Authority (PRA). Jersey Branch additionally Jersey Financial Services Commission (JFSC). Lead Manager UBS AG, Zurich (UBS Investment Bank) Calculation Agent UBS AG, London Branch Paying Agent UBS Switzerland AG Related Exchange The exchanges on which components comprising the Underlying are traded, as determined by the Index Sponsor from time to time. Index Sponsor S&P/Dow Jones Indices LLC Listing None Secondary Market The Issuer or the Lead Manager, as applicable, intends, under normal market conditions, to provide bid and/or offer prices for this Product on a regular basis. However, the Issuer or the Lead Manager, as applicable, makes no firm commitment to provide liquidity by means of bid and/or offer prices for this Product, and assumes no legal obligation to quote any such prices or with respect to the level or determination of such prices. Daily price indications, if any, will be available on Reuters/Bloomberg, www.ubs.com/keyinvest and SIX Financial Information from 09:15 - 17:15 (CET). Minimum Investment 1 Unit(s) (subject to Selling Restrictions) Minimum Trading Lot 1 Unit(s) Clearing SIX SIS, Euroclear, Clearstream (registered as intermediated securities with SIX SIS AG, in Switzerland) Form of Deed Uncertificated Securities Governing Law / Jurisdiction Swiss / Zurich Adjustments The terms of the Product may be subject to adjustments during its lifetime. For clients outside of the United Kingdom, any changes with regard to the terms of this Product shall be published on the internet at www.ubs.com/keyinvest. Detailed information on such adjustments is to be found in the Product Documentation. Distribution Fee 0.50% p.a., fee included in the Issue Price Tax Treatment Switzerland Bondfloor at issue 94.76% (USD 947.60 per Nominal) Swiss Transfer Stamp Duty The product qualifies as a taxable security (bond). In principle secondary market transactions are subject to Swiss Stamp Duty. Swiss Income Tax For Swiss tax purposes this product is qualified as a combination of an option and a bond, where the majority of the return is in the form of a discount or of one payment on redemption date (IUP). For private investors resident in Switzerland the increase of the bond floor* at sale or redemption respectively are subject to income tax. However, any gain derived from the option (if an option is included in the product) is therefore for such investors considered as capital gain and is not subject to income tax. Contact: UBS AG, P.O. Box, 8098 Zürich Private Investors: Please contact your client advisor or send an email to [email protected] Internet: www.ubs.com/keyinvest Product Hotline: +41-44-239 76 76* Investors outside of Switzerland should consult their local client advisors. Please note that calls made to the numbers marked with an asterisk (*) may be recorded. Should you call one of these numbers, we shall assume that you consent to this business practice. 3/6 Valor: 38180153 Final Terms * For products which are not denominated in Swiss Francs, the bondfloor has to be converted into Swiss Francs at the prevailing exchange rate at sale or redemption and at purchase. Swiss Withholding Tax This product is not subject to the Swiss Issuer Withholding Tax. It depends on the jurisdiction of the issuer whether a foreign issuer withholding tax applies. The tax information only provides a general overview over the Swiss tax consequences linked to this product based on the tax laws and the practice of the tax administration at the time of issue. Tax laws and the practice of tax administrations may change, possibly with retroactive effect. Withholding related to 871 (m) of the U.S. Tax Code A 30% withholding tax is imposed on certain “dividend equivalents” paid or deemed paid to a non-U.S. holder with respect to a “specified equity-linked instrument” that references one or more dividend-paying U.S. equity securities. The withholding tax can apply even if the instrument does not provide for payments that reference dividends. Treasury regulations provide that the withholding tax applies to all dividend equivalents paid or deemed paid on specified equity-linked instruments issued after 2016. However, on December 2, 2016, the IRS issued Notice 2016-76, which states that the Treasury Department and the IRS intend to amend the applicability dates of the Treasury regulations to provide that the withholding tax will apply to all dividend equivalents paid or deemed paid on specified equity-linked instruments that have a delta of one (“delta one specified equity- linked instruments”) issued after 2016 and to all dividend equivalents paid or deemed paid on all other specified equity-linked instruments issued after 2017. The Issuer has determined that the Certificates are delta one specified equity-linked instruments and, therefore, will be subject to withholding on dividend equivalents. The Issuer will not pay any additional amounts with respect to any amounts withheld. Investors in the Certificates should consult their own tax advisors regarding the application of the withholding tax to their Securities and the availability of any reduction in tax pursuant to an income tax treaty. No assurance can be given that Investors will be able to successfully claim a reduction in tax pursuant to an income tax treaty. In addition, no assurance can be given that Investors will be able to successfully claim a credit on their tax returns for any tax withheld. Classification This Product does not represent a participation in any of the collective investment schemes pursuant to Art. 7 ff of the Swiss Federal Act on Collective Investment Schemes (CISA) and thus does not require an authorisation of the Swiss Financial Market Supervisory Authority (FINMA). Therefore, Investors in this Product are not eligible for the specific investor protection under the CISA.