The information in this preliminary pricing supplement is not complete and may be changed. This preliminary pricing supplement is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted. Subject to completion dated October 2, 2017.

Preliminary Pricing Supplement No. U2329
To Product Supplement No. I-C dated June 30, 2017, Prospectus Supplement dated June 30, 2017 and Prospectus dated June 30, 2017 Filed Pursuant to Rule 424(b)(2)
Registration Statement No. 333-218604-02
October 2, 2017

Financial Products

$

10% − 11% per annum Contingent Coupon Callable Yield Notes due October 27, 2020

Linked to the Performance of the Lowest Performing of the SPDR^® S&P^® Biotech ETF and the Technology Select Sector SPDR^® Fund

• The securities do not guarantee any return of principal at maturity and do not provide for the regular payment of interest.

• Subject to Early Redemption, if a Coupon Barrier Event does not occur on an Observation Date, we will pay a contingent coupon on the immediately following Contingent Coupon Payment Date at a Contingent Coupon Rate that is expected to be between 10% and 11% per annum (to be determined on the Trade Date). If a Coupon Barrier Event occurs, no contingent coupon will be paid on the immediately following Contingent Coupon Payment Date. Contingent coupons will be calculated on a 30/360 basis from and including the Settlement Date to and excluding the earlier of the Early Redemption Date and the Maturity Date, as applicable.

• We may redeem the securities, in whole but not in part, on any Contingent Coupon Payment Date scheduled to occur on or after April 27, 2018 but prior to the Maturity Date. No further payments will be made following an Early Redemption.

• Investors should be willing to (i) forgo dividends and the potential to participate in any appreciation of any Underlying and (ii) lose some or all of their investment if a Knock-In Event has occurred.

• Senior unsecured obligations of Credit Suisse maturing October 27, 2020. Any payment on the securities is subject to our ability to pay our obligations as they become due.

• Minimum purchase of $1,000. Minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof.

• The securities are expected to price on or about October 20, 2017 (the “Trade Date”) and are expected to settle on or about October 27, 2017 (the “Settlement Date”). Delivery of the securities in book-entry form only will be made through The Depository Trust Company.

• The securities will not be listed on any exchange.

Investing in the securities involves a number of risks. See “Selected Risk Considerations” beginning on page 7 of this pricing supplement and “Risk Factors” beginning on page PS-3 of any accompanying product supplement.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the securities or passed upon the accuracy or the adequacy of this pricing supplement or any accompanying product supplement, the prospectus supplement and the prospectus. Any representation to the contrary is a criminal offense.

	Price to Public(1)	Underwriting Discounts and Commissions(2)	Proceeds to Issuer
Per security	$1,000	$	$
Total	$	$	$

(1) Certain fiduciary accounts may pay a purchase price of at least $976 per $1,000 principal amount of securities, and CSSU, an Agent (as defined in “Supplemental Plan of Distribution (Conflicts of Interest)”) for this offering, or any other Agent will forgo any fees with respect to such sales.

(2) We or any Agent (one of which is our affiliate) may pay varying discounts and commissions of between $20 and $24 per $1,000 principal amount of securities. The Agent(s) through whom we distribute securities may enter into arrangements with other institutions with respect to the distribution of the securities, and those institutions may share in the commissions, discounts or other compensation received by the Agent(s), may be compensated separately and may also receive commissions from purchasers for whom they may act as agents. CSSU will also pay certain institutions or service providers a fee of $4 per security in consideration for providing education, structuring or other services with respect to the distribution of the securities. In addition, an affiliate of ours may pay referral fees of $4.50 per $1,000 principal amount of securities. For more detailed information, please see “Supplemental Plan of Distribution (Conflicts of Interest)” in this pricing supplement.

Credit Suisse Securities (USA) LLC (“CSSU”) is our affiliate. For more information, see “Supplemental Plan of Distribution (Conflicts of Interest)” in this pricing supplement.

Credit Suisse currently estimates the value of each $1,000 principal amount of the securities on the Trade Date will be between $940 and $970 (as determined by reference to our pricing models and the rate we are currently paying to borrow funds through issuance of the securities (our “internal funding rate”)). This range of estimated values reflects terms that are not yet fixed. A single estimated value reflecting final terms will be determined on the Trade Date. See “Selected Risk Considerations” in this pricing supplement.

The securities are not deposit liabilities and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency of the United States, Switzerland or any other jurisdiction.

Credit Suisse

October , 2017

Key Terms

Issuer:	Credit Suisse AG (“Credit Suisse”), acting through its London branch
Underlyings:	The securities are linked to the performance of the lowest performing of the Underlyings set forth in the table below. For additional information on the Underlyings, see “The Underlyings” herein. Each Underlying is identified in the table below, together with its Bloomberg ticker symbol, Initial Level, Knock-In Level and Coupon Barrier Level:

Underlying	Ticker	Initial Level	Knock-In Level	Coupon Barrier Level
SPDR® S&P® Biotech ETF	XBI UP <Equity>
Technology Select Sector SPDR® Fund	XLK UP <Equity>

Contingent Coupon Rate:	Subject to Early Redemption, the Contingent Coupon Rate is expected to be between 10% and 11% per annum (to be determined on the Trade Date). If a Coupon Barrier Event occurs, no contingent coupon will be paid on the immediately following Contingent Coupon Payment Date. Contingent coupons will be calculated on a 30/360 basis from and including the Settlement Date to and excluding the earlier of the Early Redemption Date and the Maturity Date, as applicable.
Coupon Barrier Event:	A Coupon Barrier Event will occur if, on any Observation Date, the closing level of any Underlying on such Observation Date is less than its Coupon Barrier Level.
Coupon Barrier Level:	For each Underlying, approximately 70% of the Initial Level of such Underlying (to be determined on the Trade Date).
Contingent Coupon Payment Dates:	Subject to Early Redemption, unless a Coupon Barrier Event occurs, contingent coupons will be paid on April 27, 2018, October 29, 2018, April 29, 2019, October 28, 2019, April 27, 2020 and the Maturity Date, subject to postponement as set forth in any accompanying product supplement under “Description of the Securities—Postponement of calculation dates.” If any Contingent Coupon Payment Date is not a business day, the contingent coupon will be payable on the first following business day, unless that business day falls in the next calendar month, in which case payment will be made on the first preceding business day. The amount of any contingent coupon will not be adjusted in respect of any postponement of a Contingent Coupon Payment Date and no interest or other payment will be payable hereon because of any such postponement of a Contingent Coupon Payment Date. No contingent coupons will be payable following an Early Redemption. Contingent coupons, if any, will be payable on the applicable Contingent Coupon Payment Date to the holder of record at the close of business on the business day immediately preceding the applicable Contingent Coupon Payment Date; provided that the contingent coupon payable on the Early Redemption Date or Maturity Date, as applicable, will be payable to the person to whom the Early Redemption Amount or the Redemption Amount, as applicable, is payable.
Redemption Amount:	Subject to Early Redemption, at maturity, the Redemption Amount you will receive will depend on the individual performance of each Underlying and whether a Knock-In Event has occurred. For each $1,000 principal amount of securities, the Redemption Amount will be determined as follows:
	•	If a Knock-In Event has occurred, $1,000 multiplied by the sum of one plus the Underlying Return of the Lowest Performing Underlying. In this case, the Redemption Amount will be less than $700 per $1,000 principal amount of securities. You could lose your entire investment.
	•	If a Knock-In Event has not occurred, $1,000. Therefore, you will not participate in any appreciation of any Underlying.
	Any payment on the securities is subject to our ability to pay our obligations as they become due.

1 

Early Redemption:	The Issuer may redeem the securities in whole, but not in part, on any Contingent Coupon Payment Date scheduled to occur on or after April 27, 2018 but prior to the Maturity Date, upon notice to the trustee on or before the immediately preceding Observation Date at 100% of the principal amount of the securities (the “Early Redemption Amount”), together with the contingent coupon, if any, payable on the immediately following Contingent Coupon Payment Date. No further payments will be made in respect of the securities. Payment will be made in respect of such Early Redemption on the Contingent Coupon Payment Date immediately following the relevant Observation Date (the “Early Redemption Date”). Any payment on the securities is subject to our ability to pay our obligations as they become due.
Knock-In Event:	A Knock-In Event will occur if the Final Level of any Underlying is less than its Knock-In Level.
Knock-In Level:	For each Underlying, approximately 70% of the Initial Level of such Underlying (to be determined on the Trade Date).
Lowest Performing Underlying:	The Underlying with the lowest Underlying Return.
Underlying Return:	For each Underlying, the lesser of (i) zero and (ii) an amount calculated as follows:

                        Final Level − Initial Level
                           Initial Level

Initial Level:	For each Underlying, the closing level of such Underlying on the Trade Date. In the event that the closing level for any Underlying is not available on the Trade Date, the Initial Level for such Underlying will be determined on the immediately following trading day on which a closing level is available.
Final Level:	For each Underlying, the closing level of such Underlying on the Valuation Date.
Observation Dates:	April 20, 2018, October 22, 2018, April 22, 2019, October 21, 2019, April 20, 2020 and the Valuation Date, subject to postponement as set forth in any accompanying product supplement under “Description of the Securities—Postponement of calculation dates.”
Valuation Date:	October 20, 2020, subject to postponement as set forth in any accompanying product supplement under “Description of the Securities—Postponement of calculation dates.”
Maturity Date:	October 27, 2020, subject to postponement as set forth in any accompanying product supplement under “Description of the Securities—Postponement of calculation dates.”
CUSIP:	22550BKK8

You may revoke your offer to purchase the securities at any time prior to the time at which we accept such offer on the date the securities are priced. We reserve the right to change the terms of, or reject any offer to purchase the securities prior to their issuance. In the event of any changes to the terms of the securities, we will notify you and you will be asked to accept such changes in connection with your purchase. You may also choose to reject such changes in which case we may reject your offer to purchase.

2 

Additional Terms Specific to the Securities

You should read this pricing supplement together with the product supplement dated June 30, 2017, the prospectus supplement dated June 30, 2017 and the prospectus dated June 30, 2017, relating to our Medium-Term Notes of which these securities are a part. You may access these documents on the SEC website at www.sec.gov as follows (or if such address has changed, by reviewing our filings for the relevant date on the SEC website):

• Product Supplement No. I-C dated June 30, 2017:

http://www.sec.gov/Archives/edgar/data/1053092/000095010317006317/dp77785_424b2-ic.htm

• Prospectus Supplement and Prospectus dated June 30, 2017:

http://www.sec.gov/Archives/edgar/data/1053092/000104746917004364/a2232566z424b2.htm

In the event the terms of the securities described in this pricing supplement differ from, or are inconsistent with, the terms described in any product supplement, the prospectus supplement or prospectus, the terms described in this pricing supplement will control.

Our Central Index Key, or CIK, on the SEC website is 1053092. As used in this pricing supplement, “we,” “us,” or “our” refers to Credit Suisse.

This pricing supplement, together with the documents listed above, contains the terms of the securities and supersedes all other prior or contemporaneous oral statements as well as any other written materials including preliminary or indicative pricing terms, fact sheets, correspondence, trade ideas, structures for implementation, sample structures, brochures or other educational materials of ours. We may, without the consent of the registered holder of the securities and the owner of any beneficial interest in the securities, amend the securities to conform to its terms as set forth in this pricing supplement and the documents listed above, and the trustee is authorized to enter into any such amendment without any such consent. You should carefully consider, among other things, the matters set forth in “Selected Risk Considerations” in this pricing supplement and “Risk Factors” in any accompanying product supplement, “Foreign Currency Risks” in the accompanying prospectus, and any risk factors we describe in the combined Annual Report on Form 20-F of Credit Suisse Group AG and us incorporated by reference therein, and any additional risk factors we describe in future filings we make with the SEC under the Securities Exchange Act of 1934, as amended, as the securities involve risks not associated with conventional debt securities. You should consult your investment, legal, tax, accounting and other advisors before deciding to invest in the securities.

3 

Hypothetical Redemption Amounts and Total Payments on the Securities

The tables and examples below illustrate, for a $1,000 investment in the securities, hypothetical Redemption Amounts payable at maturity for a hypothetical range of Underlying Returns of the Lowest Performing Underlying and, in the case of Table 2, total contingent coupons payable over the term of the securities, which will depend on the number of Coupon Barrier Events that have occurred over the term of the securities. The tables and examples below assume that (i) the Contingent Coupon Rate is 10.50% per annum (the midpoint of the expected range set forth in “Key Terms” herein), (ii) the securities are not redeemed prior to maturity, (iii) the term of the securities is exactly three years and (iv) the Knock-In Level for each Underlying is 70% of the Initial Level of such Underlying. The actual Contingent Coupon Rate and Knock-In Levels will be determined on the Trade Date. The examples are intended to illustrate hypothetical calculations of only the Redemption Amount and do not illustrate the calculation or payment of any individual contingent coupon.

The hypothetical Redemption Amounts and total contingent coupons set forth below are for illustrative purposes only. The actual Redemption Amount and total contingent coupons applicable to a purchaser of the securities will depend on the number of Coupon Barrier Events that have occurred over the term of the securities, whether a Knock-In Event has occurred and on the Final Level of the Lowest Performing Underlying. It is not possible to predict how many Coupon Barrier Events will occur, if any, or whether a Knock-In Event will occur and, in the event that there is a Knock-In Event, by how much the level of the Lowest Performing Underlying has decreased from its Initial Level to its Final Level. You will not participate in any appreciation in the Underlyings. You should consider carefully whether the securities are suitable to your investment goals. Any payment on the securities is subject to our ability to pay our obligations as they become due. The numbers appearing in the tables and examples below have been rounded for ease of analysis.

TABLE 1: Hypothetical Redemption Amounts

Percentage Change from the Initial Level to the Final Level of the Lowest Performing Underlying	Underlying Return of the Lowest Performing Underlying	Redemption Amount (excluding contingent coupons, if any)	Total Contingent Coupons
100%	0%	$1,000	(See table below)
90%	0%	$1,000
80%	0%	$1,000
70%	0%	$1,000
60%	0%	$1,000
50%	0%	$1,000
40%	0%	$1,000
30%	0%	$1,000
20%	0%	$1,000
10%	0%	$1,000
0%	0%	$1,000
−10%	−10%	$1,000
−20%	−20%	$1,000
−30%	−30%	$1,000
−31%	−31%	$690
−40%	−40%	$600
−50%	−50%	$500
−60%	−60%	$400
−70%	−70%	$300
−80%	−80%	$200
−90%	−90%	$100
−100%	−100%	$0

4 

TABLE 2: The expected total contingent coupons will depend on how many Coupon Barrier Events occur.

Number of Coupon Barrier Events	Total Contingent Coupons
A Coupon Barrier Event does not occur on any Observation Date	$315
A Coupon Barrier Event occurs on 1 Observation Date	$262.50
A Coupon Barrier Event occurs on 2 Observation Dates	$210
A Coupon Barrier Event occurs on 3 Observation Dates	$157.50
A Coupon Barrier Event occurs on 4 Observation Dates	$105
A Coupon Barrier Event occurs on 5 Observation Dates	$52.50
A Coupon Barrier Event occurs on 6 Observation Dates	$0

The total payment on the securities will be equal to the Redemption Amount applicable to an investor plus the total contingent coupons payable on the securities.

The following examples illustrate how the Redemption Amount is calculated.

Example 1: The Final Level of an Underlying is less than its Knock-In Level.

Underlying	Final Level
XBI	110% of Initial Level
XLK	40% of Initial Level

Since the Final Level of XLK is less than its Knock-In Level, a Knock-In Event has occurred. XLK is also the Lowest Performing Underlying.

Therefore, the Redemption Amount is determined as follows:

Underlying Return of the Lowest Performing Underlying	=	the lesser of (i) zero and (ii) (Final Level - Initial Level) / Initial Level
	=	the lesser of (i) zero and (ii) −60%
	=	−60%
Redemption Amount	=	$1,000 × (1 + Underlying Return of the Lowest Performing Underlying)
	=	$1,000 × 0.40
	=	$400

Even though the Final level of XBI is above its Initial Level, you will not benefit in any appreciation of XBI and will be exposed to the depreciation in the Lowest Performing Underlying.

Example 2: The Final Level of each Underlying is less than its Initial Level but equal to or greater than its Knock-In Level.

Underlying	Final Level
XBI	80% of Initial Level
XLK	75% of Initial Level

Even though the Final Level of each Underlying is below its Initial Level, since the Final Level of each Underlying is not less than its Knock-In Level, a Knock-In Event has not occurred.

Therefore, the Redemption Amount equals $1,000.

Example 3: The Final Level of each Underlying is equal to or greater than its Initial Level.

Underlying	Final Level
XBI	110% of Initial Level
XLK	110% of Initial Level

Since the Final Level of each Underlying is not less than its Knock-In Level, a Knock-In Event has not occurred.

Therefore, the Redemption Amount equals $1,000. Even though the Final Level of each Underlying is greater than its respective Initial Level, you will not participate in the appreciation of any Underlying.

5 

Selected Risk Considerations

An investment in the securities involves significant risks. Investing in the securities is not equivalent to investing directly in the Underlyings. These risks are explained in more detail in the “Risk Factors” section of any accompanying product supplement.

• YOU MAY RECEIVE LESS THAN THE PRINCIPAL AMOUNT AT MATURITY — You may receive less at maturity than you originally invested in the securities, or you may receive nothing, excluding contingent coupons, if any. If the Final Level of any Underlying is less than its Knock-In Level, you will be fully exposed to any depreciation in the Lowest Performing Underlying. In this case, the Redemption Amount you will receive will be less than the principal amount of the securities, and you could lose your entire investment. It is not possible to predict whether a Knock-In Event will occur, and in the event that there is a Knock-In Event, by how much the level of the Lowest Performing Underlying has decreased from its Initial Level to its Final Level. Any payment on the securities is subject to our ability to pay our obligations as they become due.

• REGARDLESS OF THE AMOUNT OF ANY PAYMENT YOU RECEIVE ON THE SECURITIES, YOUR ACTUAL YIELD MAY BE DIFFERENT IN REAL VALUE TERMS — Inflation may cause the real value of any payment you receive on the securities to be less at maturity than it is at the time you invest. An investment in the securities also represents a forgone opportunity to invest in an alternative asset that generates a higher real return. You should carefully consider whether an investment that may result in a return that is lower than the return on alternative investments is appropriate for you.

• THE SECURITIES DO NOT PROVIDE FOR REGULAR FIXED INTEREST PAYMENTS — Unlike conventional debt securities, the securities do not provide for regular fixed interest payments. The number of contingent coupons you receive over the term of the securities, if any, will depend on the performance of the Underlyings during the term of the securities and the number of Coupon Barrier Events that occur. If a Coupon Barrier Event occurs on an Observation Date, you will not receive a contingent coupon on the Contingent Coupon Payment Date immediately following such Observation Date. Accordingly, if a Coupon Barrier Event occurs on every Observation Date, you will not receive any contingent coupons during the term of the securities. Thus, the securities are not a suitable investment for investors who require regular fixed income payments, since the number of contingent coupons are variable and may be zero.

In addition, if rates generally increase over the term of the securities, it is more likely that the contingent coupon, if any, could be less than the yield one might receive based on market rates at that time. This would have the further effect of decreasing the value of your securities both nominally in terms of below-market coupons and in real value terms. Furthermore, it is possible that you will not receive some or all of the contingent coupons over the term of the securities, and still lose your principal amount. Even if you do receive some or all of your principal amount at maturity, you will not be compensated for the time value of money. These securities are not short-term investments, so you should carefully consider these risks before investing.

• MORE FAVORABLE TERMS TO YOU ARE GENERALLY ASSOCIATED WITH AN UNDERLYING WITH GREATER EXPECTED VOLATILITY AND THEREFORE CAN INDICATE A GREATER RISK OF LOSS — “Volatility” refers to the frequency and magnitude of changes in the level of an Underlying. The greater the expected volatility with respect to an Underlying on the Trade Date, the higher the expectation as of the Trade Date that the level of such Underlying could be less than its (i) Coupon Barrier Level on any Observation Date or (ii) Knock-In Level on the Valuation Date, indicating a higher expected risk of loss on the securities. This greater expected risk will generally be reflected in a higher Contingent Coupon Rate than the yield payable on our conventional debt securities with a similar maturity, or in more favorable terms (such as lower Coupon Barrier Levels or Knock-In Levels) than for similar securities linked to the performance of an Underlying with a lower expected volatility as of the Trade Date. You should therefore understand that a relatively higher Contingent Coupon Rate may indicate an increased risk of loss. Further, relatively lower Coupon Barrier Levels or Knock-In Levels may not necessarily indicate that you will receive a contingent coupon on any Contingent Coupon Payment Date or that the securities have a greater likelihood of a return of principal at maturity. The volatility of any Underlying can change significantly over the term of the securities. The levels of the Underlyings for your securities could fall sharply, which could result in a significant loss of

6 

principal. You should be willing to accept the downside market risk of the Underlyings and the potential to lose a significant amount of your principal at maturity.

• AT MATURITY OR UPON AUTOMATIC REDEMPTION, THE SECURITIES WILL NOT PAY MORE THAN THE PRINCIPAL AMOUNT PLUS THE FINAL CONTINGENT COUPON, IF ANY —  At maturity or upon Automatic Redemption, the securities will not pay more than the principal amount plus the final contingent coupon, if any, regardless of the performance of the Underlying. Even if the Final Level is greater than the Initial Level (regardless of whether a Knock-In Event has occurred), you will not participate in the appreciation of the Underlying. The maximum amount payable with respect to the securities (excluding any contingent coupons) is $1,000 for each $1,000 principal amount of the securities.

• THE SECURITIES ARE SUBJECT TO THE CREDIT RISK OF CREDIT SUISSE — Investors are dependent on our ability to pay all amounts due on the securities and, therefore, if we were to default on our obligations, you may not receive any amounts owed to you under the securities. In addition, any decline in our credit ratings, any adverse changes in the market’s view of our creditworthiness or any increase in our credit spreads is likely to adversely affect the value of the securities prior to maturity.

• THE SECURITIES ARE SUBJECT TO A POTENTIAL EARLY REDEMPTION, WHICH EXPOSES YOU TO REINVESTMENT RISK — Market events could affect our decision to redeem the securities. For example, it is more likely that Credit Suisse will redeem the securities prior to the Maturity Date at a time when Credit Suisse believes it will be likely to pay contingent coupons over the term of the securities and could issue a comparable debt security with a lower contingent coupon rate. If we redeem the securities prior to maturity, you may not be able to invest in other securities with a similar level of risk that offer the same contingent coupon rate as the securities.

• AN EARLY REDEMPTION WOULD LIMIT YOUR OPPORTUNITY TO BE PAID CONTINGENT COUPONS OVER THE FULL TERM OF THE SECURITIES — The securities are subject to a potential Early Redemption on any Contingent Coupon Payment Date scheduled to occur on or after April 27, 2018 but prior to the Maturity Date, upon notice to the trustee on or before the immediately preceding Observation Date. If the securities are redeemed prior to the Maturity Date, you will receive a cash payment equal to the principal amount of your securities and the contingent coupon payable, if any, on that Contingent Coupon Payment Date, and no further payments will be made in respect of the securities. In this case, you will lose the opportunity to continue to be paid contingent coupons from the date of Early Redemption to the scheduled Maturity Date.

• YOU WILL BE SUBJECT TO RISKS RELATING TO THE RELATIONSHIP BETWEEN THE UNDERLYINGS — The securities are linked to the individual performance of each Underlying. As such, the securities will perform poorly if only one of the Underlyings performs poorly. For example, if one Underlying appreciates from its Initial Level to its Final Level, but the Final Level of the Lowest Performing Underlying is less than its Knock-In Level, you will be exposed to the depreciation of the Lowest Performing Underlying and will not benefit from the performance of any other Underlying. Each additional Underlying to which the securities are linked increases the risk that the securities will perform poorly. By investing in the securities, you assume the risk that (i) the Final Level of at least one of the Underlyings will be less than its Knock-In Level and (ii) a Coupon Barrier Event occurs with respect to at least one of the Underlyings on one or more Observation Dates, regardless of the performance of any other Underlying.

It is impossible to predict the relationship between the Underlyings. If the performances of the Underlyings exhibit no relationship to each other, it is more likely that one of the Underlyings will cause the securities to perform poorly. However, if the performances of the equity securities included in each Underlying are related such that the performances of the Underlyings are correlated, then there is less likelihood that only one Underlying will cause the securities to perform poorly. Furthermore, to the extent that each Underlying represents a different market segment or market sector, the risk of one Underlying performing poorly is greater. As a result, you are not only taking market risk on each Underlying, you are also taking a risk relating to the relationship among the Underlyings.

• THERE ARE RISKS ASSOCIATED WITH THE UNDERLYINGS — Although shares of the Underlyings are listed for trading on a national securities exchange and a number of similar products

7 

have been traded on various national securities exchanges for varying periods of time, there is no assurance that an active trading market will continue for the shares of the Underlyings or that there will be liquidity in the trading market. Each Underlying is subject to management risk, which is the risk that an Underlying’s investment strategy, the implementation of which is subject to a number of constraints, may not produce the intended results. Pursuant to each Underlying's investment strategy or otherwise, its investment advisor may add, delete or substitute the assets held by such Underlying. Any of these actions could adversely affect the price of the shares of each Underlying and consequently the value of the securities. For additional information on the Underlyings, see “The Underlyings” herein.

• THE PERFORMANCE AND MARKET VALUE OF EACH UNDERLYING, PARTICULARLY DURING PERIODS OF MARKET VOLATILITY, MAY NOT CORRELATE TO THE PERFORMANCE OF ITS TRACKED INDEX — Each Underlying will generally invest in all of the equity securities included in the index tracked by such Underlying (each such index, a “Tracked Index”), but may not fully replicate such Tracked Index. There may be instances where a Underlying’s investment advisor may choose to overweight another stock in such Underlying’s Tracked Index, purchase securities not included in such Underlying’s Tracked Index that such investment advisor believes are appropriate to substitute for a security included in such Tracked Index or utilize various combinations of other available investment techniques. In addition, the performance of each Underlying will reflect additional transaction costs and fees that are not included in the calculation of such Underlying’s Tracked Index. Finally, because the shares of each Underlying are traded on a national securities exchange and are subject to market supply and investor demand, the market value of one share of each Underlying may differ from the net asset value per share of such Underlying.

During periods of market volatility, securities held by each Underlying may be unavailable in the secondary market, market participants may be unable to calculate accurately the net asset value per share of such Underlying and the liquidity of such Underlying may be adversely affected. This kind of market volatility may also disrupt the ability of market participants to create and redeem shares in each Underlying. Further, market volatility may adversely affect, sometimes materially, the prices at which market participants are willing to buy and sell shares of each Underlying. As a result, under these circumstances, the market value of shares of each Underlying may vary substantially from the net asset value per share of such Underlying. For all the foregoing reasons, the performance of each Underlying may not correlate with the performance of its Tracked Index. For additional information on the Underlyings, see “The Underlyings” herein.

• The Stocks Included in EACH UNDERLYING are Concentrated in One Particular Sector — All of the stocks included in each Underlying are issued by companies in a single sector. As a result, the stocks that will determine the performance of each Underlying are concentrated in a single sector. Although an investment in the securities will not give holders any ownership or other direct interests in the stocks held by the Underlyings, the return on an investment in the securities will be subject to certain risks associated with a direct equity investment in companies in a single sector. Accordingly, by investing in the securities, you will not benefit from the diversification which could result from an investment linked to companies that operate in a broader range of sectors.

• HEDGING AND TRADING ACTIVITY — While the securities are outstanding, we or any of our affiliates may carry out hedging activities related to the securities, including in the Underlyings or instruments related to the Underlyings. We or our affiliates may also trade in the Underlyings or instruments related to the Underlyings from time to time. Any of these hedging or trading activities as of the Trade Date and during the term of the securities could adversely affect our payment to you at maturity.

• THE ESTIMATED VALUE OF THE SECURITIES ON THE TRADE DATE MAY BE LESS THAN THE PRICE TO PUBLIC — The initial estimated value of your securities on the Trade Date (as determined by reference to our pricing models and our internal funding rate) may be significantly less than the original Price to Public. The Price to Public of the securities includes any discounts or commissions as well as transaction costs such as expenses incurred to create, document and market the securities and the cost of hedging our risks as issuer of the securities through one or more of our affiliates (which includes a projected profit). These costs will be effectively borne by you as an investor in the securities. These amounts will be retained by Credit Suisse or our affiliates in connection with our structuring and offering of the securities (except to the extent discounts or commissions are reallowed

8 

to other broker-dealers or any costs are paid to third parties).

On the Trade Date, we value the components of the securities in accordance with our pricing models. These include a fixed income component valued using our internal funding rate, and individual option components valued using mid-market pricing. As such, the payout on the securities can be replicated using a combination of these components and the value of these components, as determined by us using our pricing models, will impact the terms of the securities at issuance. Our option valuation models are proprietary. Our pricing models take into account factors such as interest rates, volatility and time to maturity of the securities, and they rely in part on certain assumptions about future events, which may prove to be incorrect.

Because Credit Suisse’s pricing models may differ from other issuers’ valuation models, and because funding rates taken into account by other issuers may vary materially from the rates used by Credit Suisse (even among issuers with similar creditworthiness), our estimated value at any time may not be comparable to estimated values of similar securities of other issuers.

• EFFECT OF INTEREST RATE USED IN STRUCTURING THE SECURITIES — The internal funding rate we use in structuring notes such as these securities is typically lower than the interest rate that is reflected in the yield on our conventional debt securities of similar maturity in the secondary market (our “secondary market credit spreads”).  If on the Trade Date our internal funding rate is lower than our secondary market credit spreads, we expect that the economic terms of the securities will generally be less favorable to you than they would have been if our secondary market credit spread had been used in structuring the securities. We will also use our internal funding rate to determine the price of the securities if we post a bid to repurchase your securities in secondary market transactions. See “—Secondary Market Prices” below.

• SECONDARY MARKET PRICES — If Credit Suisse (or an affiliate) bids for your securities in secondary market transactions, which we are not obligated to do, the secondary market price (and the value used for account statements or otherwise) may be higher or lower than the Price to Public and the estimated value of the securities on the Trade Date. The estimated value of the securities on the cover of this pricing supplement does not represent a minimum price at which we would be willing to buy the securities in the secondary market (if any exists) at any time. The secondary market price of your securities at any time cannot be predicted and will reflect the then-current estimated value determined by reference to our pricing models and other factors. These other factors include our internal funding rate, customary bid and ask spreads and other transaction costs, changes in market conditions and any deterioration or improvement in our creditworthiness. In circumstances where our internal funding rate is lower than our secondary market credit spreads, our secondary market bid for your securities could be more favorable than what other dealers might bid because, assuming all else equal, we use the lower internal funding rate to price the securities and other dealers might use the higher secondary market credit spread to price them. Furthermore, assuming no change in market conditions from the Trade Date, the secondary market price of your securities will be lower than the Price to Public because it will not include any discounts or commissions and hedging and other transaction costs. If you sell your securities to a dealer in a secondary market transaction, the dealer may impose an additional discount or commission, and as a result the price you receive on your securities may be lower than the price at which we may repurchase the securities from such dealer.

We (or an affiliate) may initially post a bid to repurchase the securities from you at a price that will exceed the then-current estimated value of the securities. That higher price reflects our projected profit and costs that were included in the Price to Public, and that higher price may also be initially used for account statements or otherwise. We (or our affiliate) may offer to pay this higher price, for your benefit, but the amount of any excess over the then-current estimated value will be temporary and is expected to decline over a period of approximately three months.

The securities are not designed to be short-term trading instruments and any sale prior to maturity could result in a substantial loss to you. You should be willing and able to hold your securities to maturity.

• CREDIT SUISSE IS SUBJECT TO SWISS REGULATION — As a Swiss bank, Credit Suisse is subject to regulation by governmental agencies, supervisory authorities and self-regulatory

9 

organizations in Switzerland. Such regulation is increasingly more extensive and complex and subjects Credit Suisse to risks. For example, pursuant to Swiss banking laws, the Swiss Financial Market Supervisory Authority (FINMA) may open resolution proceedings if there are justified concerns that Credit Suisse is over-indebted, has serious liquidity problems or no longer fulfills capital adequacy requirements. FINMA has broad powers and discretion in the case of resolution proceedings, which include the power to convert debt instruments and other liabilities of Credit Suisse into equity and/or cancel such liabilities in whole or in part. If one or more of these measures were imposed, such measures may adversely affect the terms and market value of the securities and/or the ability of Credit Suisse to make payments thereunder and you may not receive any amounts owed to you under the securities.

• LACK OF LIQUIDITY — The securities will not be listed on any securities exchange. Credit Suisse (or its affiliates) intends to offer to purchase the securities in the secondary market but is not required to do so. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the securities when you wish to do so. Because other dealers are not likely to make a secondary market for the securities, the price at which you may be able to trade your securities is likely to depend on the price, if any, at which Credit Suisse (or its affiliates) is willing to buy the securities. If you have to sell your securities prior to maturity, you may not be able to do so or you may have to sell them at a substantial loss.

• POTENTIAL CONFLICTS — We and our affiliates play a variety of roles in connection with the issuance of the securities, including acting as calculation agent and as agent of the issuer for the offering of the securities, hedging our obligations under the securities and determining their estimated value. In performing these duties, the economic interests of us and our affiliates are potentially adverse to your interests as an investor in the securities. Further, hedging activities may adversely affect any payment on or the value of the securities. Any profit in connection with such hedging activities will be in addition to any other compensation that we and our affiliates receive for the sale of the securities, which creates an additional incentive to sell the securities to you.

• UNPREDICTABLE ECONOMIC AND MARKET FACTORS WILL AFFECT THE VALUE OF THE SECURITIES — The payout on the securities can be replicated using a combination of the components described in “The estimated value of the securities on the Trade Date may be less than the Price to Public.” Therefore, in addition to the levels of any Underlying, the terms of the securities at issuance and the value of the securities prior to maturity may be influenced by factors that impact the value of fixed income securities and options in general such as:

o the expected and actual volatility of the Underlyings;

o the expected and actual correlation, if any, between the Underlyings;

o the time to maturity of the securities;

o the dividend rate on the equity securities included in the Underlyings;

o interest and yield rates in the market generally;

o investors’ expectations with respect to the rate of inflation;

o geopolitical conditions and economic, financial, political, regulatory or judicial events that affect the components included in the Underlyings or markets generally and which may affect the levels of the Underlyings; and

o our creditworthiness, including actual or anticipated downgrades in our credit ratings.

Some or all of these factors may influence the price that you will receive if you choose to sell your securities prior to maturity. The impact of any of the factors set forth above may enhance or offset some or all of any change resulting from another factor or factors.

10 

• NO OWNERSHIP RIGHTS RELATING TO THE UNDERLYINGS — Your return on the securities will not reflect the return you would realize if you actually owned shares of the Underlyings or the assets that comprise the Underlyings. The return on your investment is not the same as the total return based on the purchase of shares of the Underlyings or the assets that comprise the Underlyings.

• NO DIVIDEND PAYMENTS OR VOTING RIGHTS — As a holder of the securities, you will not have voting rights or rights to receive cash dividends or other distributions or other rights with respect to shares of the Underlyings or the assets that comprise the Underlyings.

• ANTI-DILUTION PROTECTION IS LIMITED — The calculation agent will make anti-dilution adjustments for certain events affecting the Underlyings. However, an adjustment will not be required in response to all events that could affect the Underlyings. If an event occurs that does not require the calculation agent to make an adjustment, or if an adjustment is made but such adjustment does not fully reflect the economics of such event, the value of the securities may be materially and adversely affected. See “Description of the Securities—Adjustments” in the relevant product supplement.

• THE U.S. FEDERAL INCOME TAX CONSEQUENCES OF THE SECURITIES ARE NOT CERTAIN — There are no statutory provisions, regulations, published rulings, or judicial decisions addressing the characterization, for U.S. federal income tax purposes, of instruments with terms that are substantially the same as those of the securities. No ruling from the U.S. Internal Revenue Service (the “IRS”) has been sought as to the U.S. federal income tax consequences of the ownership and disposition of the securities, and the tax treatment described under “Material U.S. Federal Income Tax Considerations” is not binding on the IRS or any court. Thus, the U.S. federal income tax consequences of the securities are not certain.

Supplemental Use of Proceeds and Hedging

We intend to use the proceeds of this offering for our general corporate purposes, which may include the refinancing of existing debt outside Switzerland. Some or all of the proceeds we receive from the sale of the securities may be used in connection with hedging our obligations under the securities through one or more of our affiliates. Such hedging or trading activities on or prior to the Trade Date and during the term of the securities (including on any calculation date, as defined in any accompanying product supplement) could adversely affect the value of the Underlyings and, as a result, could decrease the amount you may receive on the securities at maturity. For additional information, see “Supplemental Use of Proceeds and Hedging” in any accompanying product supplement.

11 

The Underlyings

The SPDR^® S&P^® Biotech ETF

We have derived all information contained herein regarding the SPDR^® S&P^® Biotech ETF from publicly available information. Such information reflects the policies of, and is subject to change by, SSgA Funds Management, Inc., which maintains and manages the SPDR^® S&P^® Biotech ETF and acts as investment advisor to the SPDR^® S&P^® Biotech ETF. We have not conducted any independent review or due diligence of any publicly available information with respect to the SPDR^® S&P^® Biotech ETF.

The SPDR^® S&P^® Biotech ETF is an exchange-traded fund that seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of the S&P^® Biotechnology Select Industry Index. The S&P^® Biotechnology Select Industry Index represents the biotechnology segment of the S&P^® Total Market Index.

The SPDR^® Series Trust is a registered investment company that consists of numerous separate investment portfolios, including the SPDR^® S&P^® Biotech ETF. Information filed by the SPDR^® Series Trust with the SEC under the Securities Exchange Act and the Investment Company Act can be found by reference to its SEC file numbers: 333-57793 and 811-08839. Shares of the SPDR^® S&P^® Biotech ETF are listed on the NYSE Arca under ticker symbol “XBI.” Information from outside sources is not incorporated by reference in, and should not be considered part of, this pricing supplement, any accompanying product supplement, the prospectus supplement and the prospectus.

The Technology Select Sector SPDR^® Fund

We have derived all information contained herein regarding the Technology Select Sector SPDR^® Fund from publicly available information. Such information reflects the policies of, and is subject to change by, SSgA Funds Management, Inc., which maintains and manages the Technology Select Sector SPDR^® Fund and acts as investment advisor to the Technology Select Sector SPDR^® Fund. We have not conducted any independent review or due diligence of any publicly available information with respect to the Technology Select Sector SPDR^® Fund.

The Technology Select Sector SPDR^® Fund is an exchange-traded fund that seeks to provide investment results that, before expenses, correspond generally to the price and yield performance of publicly traded equity securities of companies in the Select Sector Technology Index.

The Select Sector SPDR Trust is a registered investment company that consists of eleven separate investment portfolios, including the Technology Select Sector SPDR^® Fund. Information filed by the Select Sector SPDR Trust with the SEC under the Securities Exchange Act and the Investment Company Act can be found by reference to its SEC file numbers: 333-57791 and 811-08837. Shares of the Technology Select Sector SPDR^® Fund are listed on the NYSE Arca under ticker symbol “XLK.” Information from outside sources is not incorporated by reference in, and should not be considered part of, this pricing supplement or any accompanying product supplement, the prospectus supplement or the prospectus.

12 

Historical Information

The following graphs set forth the historical performance of the Underlyings based on the closing level of each Underlying from January 3, 2012 through September 27, 2017. The closing level of the SPDR^® S&P^® Biotech ETF on September 27, 2017 was $84.47. The closing level of the Technology Select Sector SPDR^® Fund on September 27, 2017 was $58.63. We obtained the historical information below from Bloomberg, without independent verification.

You should not take the historical levels of the Underlyings as an indication of future performance of the Underlyings or the securities. Any historical trend in the levels of the Underlyings during any period set forth below is not an indication that the levels of the Underlyings are more or less likely to increase or decrease at any time over the term of the securities.

For additional information on the SPDR^® S&P^® Biotech ETF and the Technology Select Sector SPDR^® Fund, see “The Underlyings” herein.

13 

Material U.S. Federal Income Tax Considerations

The following discussion summarizes material U.S. federal income tax consequences of owning and disposing of the securities that may be relevant to holders of the securities that acquire their securities from us as part of the original issuance of the securities. This discussion applies only to holders that hold their securities as capital assets within the meaning of the Internal Revenue Code of 1986, as amended (the “Code”). Further, this discussion does not address all of the U.S. federal income tax consequences that may be relevant to you in light of your individual circumstances or if you are subject to special rules, such as if you are:

· a financial institution,

· a mutual fund,

· a tax-exempt organization,

· a grantor trust,

· certain U.S. expatriates,

· an insurance company,

· a dealer or trader in securities or foreign currencies,

· a person (including traders in securities) using a mark-to-market method of accounting,

· a person who holds the securities as a hedge or as part of a straddle with another position, constructive sale, conversion transaction or other integrated transaction,

· a person whose functional currency is not the U.S. dollar, or

· an entity that is treated as a partnership for U.S. federal income tax purposes.

The discussion is based upon the Code, law, regulations, rulings and decisions, in each case, as available and in effect as of the date hereof, all of which are subject to change, possibly with retroactive effect. Tax consequences under state, local and foreign laws are not addressed herein. No ruling from the U.S. Internal Revenue Service (the “IRS”) has been sought as to the U.S. federal income tax consequences of the ownership and disposition of the securities, and the following discussion is not binding on the IRS.

You should consult your tax advisor as to the specific tax consequences to you of owning and disposing of the securities, including the application of federal, state, local and foreign income and other tax laws based on your particular facts and circumstances.

Characterization of the Securities

There are no statutory provisions, regulations, published rulings or judicial decisions addressing the characterization for U.S. federal income tax purposes of the securities or instruments with terms that are substantially the same as those of your securities. We cannot assure you that the IRS or any court will agree with the tax treatment described below. Possible alternative characterizations and risks to investors of such characterizations are discussed below.

Due to the terms of the securities and the uncertainty of the tax law with respect to the characterization of the securities, our special tax counsel, Orrick, Herrington & Sutcliffe LLP, believes that it is reasonable to treat the securities, for U.S. federal income tax purposes, as prepaid financial contracts with respect to the Underlyings that are eligible for open transaction treatment in part, but is unable to opine that this characterization is more likely than not to be upheld. In the absence of an administrative or judicial ruling to the contrary, we intend to treat the securities and, by acceptance of the securities, you agree to treat the securities for all tax purposes in accordance with such characterization and the balance of this discussion assumes that the securities will be so treated.

Alternative Characterizations of the Securities

You should be aware that the characterization of the securities as described above is not certain, nor is it binding on the IRS or the courts. Thus, it is possible that the IRS would seek to characterize your securities in a manner that results in tax consequences to you that are different from those described below. For example, the IRS might characterize a security as a notional principal contract (an “NPC”). In general, payments on an NPC are accrued ratably (as ordinary income or deduction, as the case may be) over the period to which they relate regardless of an investor’s usual method of tax accounting. Payments made to terminate an NPC (other than perhaps a final

14 

scheduled payment) are capital in nature. Deductions for NPC payments may be limited in certain cases. Certain payments under an NPC may be treated as U.S. source income. Generally, the securities are not, and we do not expect that the securities will be, listed on a securities exchange. In the event the securities are listed on a securities exchange and the IRS seeks to characterize your securities as options, the securities would be characterized as Code section 1256 contracts. In such case, the securities would be marked-to-market at the end of the year and 40% of any gain or loss would be treated as short-term capital gain or loss, and the remaining 60% of any gain or loss would be treated as long-term capital gain or loss. It is also possible that the IRS would assert that the securities are debt instruments, which may result in adverse tax consequences. You should consult your tax advisor regarding the possible tax consequences of characterization of the securities as debt instruments. We are not responsible for any adverse consequences that you may experience as a result of any alternative characterization of the securities for U.S. federal income tax or other tax purposes.

You should consult your tax advisor as to the tax consequences of such characterization and any possible alternative characterizations of your securities for U.S. federal income tax purposes.

U.S. Holders

For purposes of this discussion, the term “U.S. Holder,” for U.S. federal income tax purposes, means a beneficial owner of securities that is (1) a citizen or resident of the United States, (2) a corporation (or an entity treated as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States or any state thereof or the District of Columbia, (3) an estate, the income of which is subject to U.S. federal income taxation regardless of its source, or (4) a trust, if (a) a court within the United States is able to exercise primary supervision over the administration of such trust and one or more U.S. persons have the authority to control all substantial decisions of the trust or (b) such trust has in effect a valid election to be treated as a domestic trust for U.S. federal income tax purposes. If a partnership (or an entity treated as a partnership for U.S. federal income tax purposes) holds securities, the U.S. federal income tax treatment of such partnership and a partner in such partnership will generally depend upon the status of the partner and the activities of the partnership. If you are a partnership, or a partner of a partnership, holding securities, you should consult your tax advisor regarding the tax consequences to you from the partnership’s purchase, ownership and disposition of the securities.

In accordance with the agreed-upon tax treatment described above, a U.S. Holder will treat any coupon payment received in respect of a security as ordinary income includible in such U.S. Holder’s income in accordance with the U.S. Holder’s method of accounting. If the security provides for the payment of the redemption amount in cash based on the return of the Underlyings, upon receipt of the redemption amount of the security from us, a U.S. Holder will recognize gain or loss equal to the difference between the amount of cash received from us and the U.S. Holder’s tax basis in the security at that time. Such gain or loss will be long-term capital gain or loss in the case of a U.S. Holder that has held the security for more than one year at maturity and short-term capital gain or loss otherwise. If the security provides for the payment of the redemption amount in physical shares or units of the Underlyings, the U.S. Holder should not recognize any gain or loss with respect to the security (other than with respect to cash received in lieu of fractional shares or units, as described below). A U.S. Holder should have a tax basis in all physical shares or units received (including for this purpose any fractional shares or units) equal to its tax basis in the security. A U.S. Holder’s holding period for any physical shares or units received should start on the day after the delivery of the physical shares or units. A U.S. Holder should generally recognize short-term capital gain or loss with respect to cash received in lieu of fractional shares or units in an amount equal to the difference between the amount of such cash received and the U.S. Holder’s basis in the fractional shares or units, which should be equal to the U.S. Holder’s basis in all of the physical shares or units (including the fractional shares or units), multiplied by a fraction, the numerator of which is the number of fractional shares or units and the denominator of which is the number of all of the physical shares or units (including fractional shares or units).

Upon the sale or other taxable disposition of a security, a U.S. Holder generally will recognize gain or loss equal to the difference between the amount realized on the sale or other taxable disposition and the U.S. Holder’s tax basis in the security. Such gain or loss will be long-term capital gain or loss in the case of a U.S. Holder that has held the security for more than one year at the time of disposition and short-term capital gain or loss otherwise. It is possible that a portion of the amount realized from the sale or taxable disposition of the securities prior to the payment date attributable to an expected coupon could be treated as ordinary income. You should consult your tax advisor regarding this possibility and the consequences of such treatment to you.

15 

Medicare Tax

Certain U.S. Holders that are individuals, estates, and trusts must pay a 3.8% tax (the “Medicare Tax”) on the lesser of the U.S. Holder’s (1) “net investment income” or “undistributed net investment income” in the case of an estate or trust and (2) the excess of modified adjusted gross income over a certain specified threshold for the taxable year. “Net investment income” generally includes income from interest, dividends, and net gains from the disposition of property (such as the securities) unless such income or net gains are derived in the ordinary course of a trade or business (other than a trade or business that is a passive activity with respect to the taxpayer or a trade or business of trading in financial instruments or commodities). Net investment income may be reduced by allowable deductions properly allocable to such gross income or net gain. Any interest earned or deemed earned on the securities and any gain on sale or other taxable disposition of the securities will be subject to the Medicare Tax. If you are an individual, estate, or trust, you should consult with your tax advisor regarding application of the Medicare Tax to your income and gains in respect of your investment in the securities.

Securities Held Through Foreign Entities

Under certain provisions of the “Hiring Incentives to Restore Employment Act,” generally referred to as “FATCA,” and regulations thereunder, a 30% withholding tax is imposed on “withholdable payments” and certain “passthru payments” made to “foreign financial institutions” (as defined in the regulations or an applicable intergovernmental agreement) (and their more than 50% affiliates) unless the payee foreign financial institution agrees, among other things, to disclose the identity of any U.S. individual with an account at the institution (or the institution’s affiliates) and to annually report certain information about such account. The term “withholdable payments” generally includes (1) payments of fixed or determinable annual or periodical gains, profits, and income (“FDAP”), in each case, from sources within the United States, and (2) gross proceeds from the sale of any property of a type which can produce interest or dividends from sources within the United States. “Passthru payments” means any withholdable payment and any foreign passthru payment. To avoid becoming subject to the 30% withholding tax on payments to it, a financial institution may be required to report information to the IRS regarding the holders of the securities. In the case of holders who (i) fail to provide the relevant information, (ii) are foreign financial institutions who have not agreed to comply with these information reporting requirements, or (iii) hold the securities directly or indirectly through such non-compliant foreign financial institutions, a payor may be required to withhold on a portion of payments under the securities. FATCA also requires withholding agents making withholdable payments to certain foreign entities that do not disclose the name, address, and taxpayer identification number of any substantial U.S. owners (or certify that they do not have any substantial U.S. owners) to withhold tax at a rate of 30%. If payments on the securities are determined to be from sources within the United States, such payments will be treated as withholdable payments for these purposes.

Withholding under FATCA will apply to all withholdable payments and certain passthru payments without regard to whether the beneficial owner of the payment is a U.S. person, or would otherwise be entitled to an exemption from the imposition of withholding tax pursuant to an applicable tax treaty with the United States or pursuant to U.S. domestic law. Unless a foreign financial institution is the beneficial owner of a payment, it will be subject to refund or credit in accordance with the same procedures and limitations applicable to other taxes withheld on FDAP payments provided that the beneficial owner of the payment furnishes such information as the IRS determines is necessary to determine whether such beneficial owner is a U.S.-owned foreign entity and the identity of any substantial U.S. owners of such entity. If such withholding applies, we will not be required to pay any additional amounts with respect to amounts withheld.

Subject to the exceptions described below, FATCA’s withholding regime generally will apply to (i) withholdable payments (other than gross proceeds of the type described above and certain payments made with respect to a “preexisting obligation,” as defined in the regulations), (ii) payments of gross proceeds of the type described above with respect to a sale or disposition occurring after December 31, 2018, and (iii) foreign passthru payments made after the later of December 31, 2018, or the date that final regulations defining the term “foreign passthru payment” are published. Notwithstanding the foregoing, the provisions of FATCA discussed above generally will not apply to (a) with respect to foreign passthru payments, any obligation (other than an instrument that is treated as equity for U.S. tax purposes or that lacks a stated expiration or term) that is executed on or prior to the date that is six months after the date on which final regulations defining foreign passthru payments are published (a “grandfathered obligation”), (b) any obligation that produces withholdable payments solely because the obligation is treated as giving rise to a dividend equivalent pursuant to Code section 871(m) and the regulations thereunder that is executed on or prior to the date that is six months after the date on which obligations of its type are first treated as giving rise to dividend equivalents, and (c) any agreement requiring a secured party to make payments

16 

with respect to collateral securing one or more grandfathered obligations (even if the collateral is not itself a grandfathered obligation). Thus, if you hold your securities through a foreign financial institution or foreign entity, a portion of any of your payments may be subject to 30% withholding.

Information Reporting Regarding Specified Foreign Financial Assets

The Code and regulations thereunder generally require individual U.S. Holders (“specified individuals”) and “specified domestic entities” with an interest in any “specified foreign financial asset” to file an annual report on IRS Form 8938 with information relating to the asset, including the maximum value thereof, for any taxable year in which the aggregate value of all such assets exceeds $50,000 on the last day of the taxable year or $75,000 at any time during the taxable year. Certain individuals are permitted to have an interest in a higher aggregate value of such assets before being required to file a report. Specified foreign financial assets include, with some limited exceptions, any financial account maintained at a foreign financial institution and any debt or equity interest in a foreign financial institution, including a financial institution organized under the laws of a U.S. possession, and any of the following that are held for investment and not held in an account maintained by a financial institution: (1) any stock or security issued by a person other than a U.S. person (including a person organized in a U.S. possession), (2) any financial instrument or contract that has an issuer or counterparty that is other than a U.S. person (including a person organized in a U.S. possession), and (3) any interest in a foreign entity. Additionally, the regulations provide that specified foreign financial assets include certain retirement and pension accounts and non-retirement savings accounts.

Pursuant to the regulations and subject to certain exceptions, “specified domestic entities” are domestic corporations, domestic partnerships, or certain trusts that are formed or used for the purposes of holding, directly or indirectly, specified foreign financial assets. Generally, specified domestic entities are certain corporations and partnerships, which are closely held by a specified individual and that meet passive income or passive asset tests, and, with certain exceptions, domestic trusts that have one or more specified individuals or specified domestic entities as a current beneficiary.

Depending on the aggregate value of your investment in specified foreign financial assets, you may be obligated to file an IRS Form 8938 under this provision if you are an individual U.S. Holder or a specified domestic entity. Penalties apply to any failure to file IRS Form 8938. In the event a U.S. Holder (either a specified individual or specified domestic entity) does not file such form, the statute of limitations on the assessment and collection of U.S. federal income taxes of such U.S. Holder for the related tax year may not close before the date which is three years after the date such information is filed. You should consult your tax advisor as to the possible application to you of this information reporting requirement and the related statute of limitations tolling provision.

Non-U.S. Holders Generally

The U.S. federal income tax treatment of the coupon payments is unclear. Except as provided under “Securities Held Through Foreign Entities” and “Substitute Dividend and Dividend Equivalent Payments,” we currently do not intend to withhold any tax on any coupon payments made to a holder of the securities that is not a U.S. Holder (a “Non-U.S. Holder”) and that has no connection with the United States other than holding its securities, provided that such Non-U.S. Holder complies with applicable certification requirements. However, it is possible that the IRS could assert that such payments are subject to U.S. withholding tax, or that we or another withholding agent may otherwise determine that withholding is required, in which case we or the other withholding agent may withhold up to 30% on such payments (subject to reduction or elimination of such withholding tax pursuant to an applicable income tax treaty). We will not pay any additional amounts in respect of such withholding.

Except as provided under “Securities Held Through Foreign Entities” and “Substitute Dividend and Dividend Equivalent Payments,” payment of the redemption amount by us in respect to the securities (except to the extent of the coupons) to a Non-U.S. Holder that has no connection with the United States other than holding its securities will not be subject to U.S. withholding tax, provided that such Non-U.S. Holder complies with applicable certification requirements. Any gain realized upon the sale or other disposition of the securities by a Non-U.S. Holder generally will not be subject to U.S. federal income tax unless (1) such gain is effectively connected with a U.S. trade or business of such Non-U.S. Holder or (2) in the case of an individual, such individual is present in the United States for 183 days or more in the taxable year of the sale or other disposition and certain other conditions are met. Any effectively connected gains described in clause (1) above realized by a Non-U.S. Holder that is, or is taxable as, a corporation for U.S. federal income tax purposes may also, under certain circumstances, be subject to an additional branch profits tax at a 30% rate or such lower rate as may be specified by an applicable

17 

income tax treaty.

Non-U.S. Holders that are subject to U.S. federal income taxation on a net income basis with respect to their investment in the securities should refer to the discussion above relating to U.S. Holders.

Substitute Dividend and Dividend Equivalent Payments

The Code and regulations thereunder treat a “dividend equivalent” payment as a dividend from sources within the United States. Unless reduced by an applicable tax treaty with the United States, such payments generally will be subject to U.S. withholding tax at a rate of 30%. A “dividend equivalent” payment is defined under the Code as (i) a substitute dividend payment made pursuant to a securities lending or a sale-repurchase transaction that (directly or indirectly) is contingent upon, or determined by reference to, the payment of a dividend from sources within the United States, (ii) a payment made pursuant to a “specified notional principal contract” (a “specified NPC”) that (directly or indirectly) is contingent upon, or determined by reference to, the payment of a dividend from sources within the United States, and (iii) any other payment determined by the IRS to be substantially similar to a payment described in the preceding clauses (i) and (ii).

Regulations provide that a dividend equivalent is any payment that references the payment or deemed payment of (i) a dividend from an underlying security pursuant to a securities lending or sale-repurchase transaction, (ii) a dividend from an underlying security pursuant to a specified NPC, (iii) a dividend from an underlying security pursuant to a specified equity-linked instrument (a “specified ELI”), and (iv) any other substantially similar payment. The regulations provide that a payment includes a dividend equivalent payment whether there is an explicit or implicit reference to a dividend with respect to the underlying security. An underlying security is any interest in an entity if a payment with respect to that interest could give rise to a U.S. source dividend pursuant to Treasury regulation section 1.861-3. An NPC is a notional principal contract as defined in Treasury regulation section 1.446-3(c). An equity-linked instrument (“ELI”) is a financial instrument (other than a securities lending or sale-repurchase transaction or an NPC) that references the value of one or more underlying securities, including a futures contract, forward contract, option, debt instrument, or other contractual arrangement. A “section 871(m) transaction” is any securities lending or sale-repurchase transaction, specified NPC, or specified ELI.

Pursuant to the regulations and Notice 2017-42, for any payment made on or after January 1, 2017 with respect to any transaction issued on or after January 1, 2017, any NPC or ELI that has a delta of one with respect to an underlying security when the NPC or ELI is issued is a specified NPC or specified ELI, respectively. For any payment made on or after January 1, 2019 with respect to any transaction issued on or after January 1, 2019, (a) a “simple” NPC or “simple” ELI that has a delta of 0.8 or greater with respect to an underlying security when the NPC or ELI is issued is a specified NPC or specified ELI, respectively, and (b) a “complex” NPC or “complex” ELI that meets a substantial equivalence test with respect to an underlying security at the time of issuance is a specified NPC or specified ELI, respectively.

Certain events could cause previously issued securities to be deemed to be issued as new securities for purposes of the effective dates provided in the regulations. For example, it is possible that the IRS could assert that a reconstitution or rebalancing of the Underlyings is a significant modification of the securities due to an exercise of discretion with respect to such reconstitution or rebalancing and, therefore, a deemed issuance of the securities upon the occurrence of such event. It is also possible that U.S. withholding tax could apply to the securities under these rules if a Non-U.S. Holder enters, or has entered, into certain other transactions in respect of the underlying equity or the securities. A Non-U.S. Holder that enters, or has entered, into other transactions in respect of the Underlyings or the securities should consult its own tax advisor regarding the application of Code section 871(m) to its securities in the context of its other transactions.

Withholding on payments will be based on actual dividends or, if otherwise notified by us in accordance with applicable regulations, on estimated dividends used in pricing the security. If an adjustment is made for the actual dividends, then the true-up payment (in addition to the estimated dividend) is added to the per-share dividend amount. If a transaction is a section 871(m) transaction, information regarding the amount of each dividend equivalent, the delta of the potential 871(m) transaction, the amount of any tax withheld and deposited, the estimated dividend amount and any other information necessary to apply the regulations will be provided, communicated, or made available to Non-U.S. Holders in a manner permitted by the applicable regulations.

In accordance with the regulations, U.S. tax will be withheld on any portion of a payment or deemed payment (including, if appropriate, the payment of the purchase price) that is a dividend equivalent with respect to any

18 

security issued (or deemed issued) on or after January 1, 2017 and prior to January 1, 2019 that has a delta of one unless reduced by an applicable tax treaty and a properly executed IRS Form W-8 (or other qualifying documentation) is provided. Based on the terms of the securities and representations provided by us, our counsel is of the opinion that a security (exclusive of any other transactions that may be combined with the security as discussed herein) should not be a “delta-one transaction” with respect to a specified ELI or specified NPC within the meaning of the regulations and, as a result, we do not intend to treat the security as a section 871(m) transaction. If withholding applies, we will not be required to pay any additional amounts with respect to amounts withheld. These regulations are extremely complex. Non-U.S. Holders should consult their tax advisors regarding the U.S. federal income tax consequences to them of these regulations and whether payments or deemed payments on the securities constitute dividend equivalent payments.

U.S. Federal Estate Tax Treatment of Non-U.S. Holders

A security may be subject to U.S. federal estate tax if an individual Non-U.S. Holder holds the security at the time of his or her death. The gross estate of a Non-U.S. Holder domiciled outside the United States includes only property situated in the United States. Individual Non-U.S. Holders should consult their tax advisors regarding the U.S. federal estate tax consequences of holding the securities at death.

Potential Changes to the Tax Rules for Financial Instruments

Members of Congress have from time to time proposed legislation relating to financial instruments, including legislation that would require holders to annually mark to market affected financial instruments (potentially including the securities). These or other potential changes in law could adversely affect the tax treatment of the securities and may be applied with retroactive effect. You are urged to consult your tax advisor regarding how any such potential changes in law could affect you.

Backup Withholding and Information Reporting

A holder of the securities (whether a U.S. Holder or a Non-U.S. Holder) may be subject to backup withholding with respect to certain amounts paid to such holder unless it provides a correct taxpayer identification number, complies with certain certification procedures establishing that it is not a U.S. Holder or establishes proof of another applicable exemption, and otherwise complies with applicable requirements of the backup withholding rules. Backup withholding is not an additional tax. You can claim a credit against your U.S. federal income tax liability for amounts withheld under the backup withholding rules, and amounts in excess of your liability are refundable if you provide the required information to the IRS in a timely fashion. A holder of the securities may also be subject to information reporting to the IRS with respect to certain amounts paid to such holder unless it (1) is a Non-U.S. Holder and provides a properly executed IRS Form W-8 (or other qualifying documentation) or (2) otherwise establishes a basis for exemption. If such withholding applies, we will not be required to pay any additional amounts with respect to amounts withheld.

19 

Supplemental Plan of Distribution (Conflicts of Interest)

Under the terms and subject to the conditions contained in a distribution agreement dated May 7, 2007, as amended, which we refer to as the distribution agreement, we have agreed to sell the securities to CSSU. We may also agree to sell the securities to other agents that are parties to the distribution agreement. We refer to CSSU and other such agents as the “Agents.”

The distribution agreement provides that the Agents are obligated to purchase all of the securities if any are purchased.

We or any Agent may offer the securities at the offering price set forth on the cover page of this pricing supplement, may receive varying discounts and commissions of between $20 and $24 per $1,000 principal amount of securities and will forgo fees for sales to fiduciary accounts. The Agent(s) through whom we distribute securities may enter into arrangements with other institutions with respect to the distribution of the securities, and those institutions may share in the commissions, discounts or other compensation received by the Agent(s), may be compensated separately and may also receive commissions from purchasers for whom they may act as agents. CSSU will also pay certain institutions or service providers a fee of $4 per security in consideration for providing education, structuring or other services with respect to the distribution of the securities. In addition, an affiliate of ours may pay referral fees of $4.50 per $1,000 principal amount of securities. The Agent(s) may re-allow some or all of the discount on the principal amount per security on sales of such securities by other brokers or dealers. If all of the securities are not sold at the initial offering price, the Agent(s) may change the public offering price and other selling terms.

An affiliate of Credit Suisse has paid or may pay in the future a fixed amount to broker-dealers in connection with the costs of implementing systems to support these securities.

We expect to deliver the securities against payment for the securities on the Settlement Date indicated herein, which may be a date that is greater than two business days following the Trade Date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, as amended, trades in the secondary market generally are required to settle in two business days, unless the parties to a trade expressly agree otherwise. Accordingly, if the Settlement Date is more than two business days after the Trade Date, purchasers who wish to transact in the securities more than two business days prior to the Settlement Date will be required to specify alternative settlement arrangements to prevent a failed settlement.

CSSU is our affiliate. In accordance with FINRA Rule 5121, CSSU may not make sales in this offering to any of its discretionary accounts without the prior written approval of the customer. A portion of the net proceeds from the sale of the securities will be used by CSSU or one of its affiliates in connection with hedging our obligations under the securities.

For further information, please refer to “Underwriting (Conflicts of Interest)” in any accompanying product supplement.

20 

Credit Suisse