Filed pursuant to Rule 424(b)(2)

Registration Statement No. 333-180300-03

March 19, 2015

Pricing Supplement Addendum No. 4 dated March 19, 2015

To Pricing Supplement No. ETN-14 dated December 2, 2014,

Prospectus Supplement dated March 23, 2012 and

the Prospectus, as Amended in the Post-Effective Amendment

to the Registration Statement filed on March 19, 2015

Credit Suisse S&P MLP Index Exchange Traded Notes
due December 4, 2034 Linked to the S&P MLP Index ("ETNs")

Issuer:	Credit Suisse AG, acting through its Nassau Branch
CUSIP/ISIN:	22539T456/US22539T4563
NYSE Arca Ticker Symbol:	MLPO
Aggregate Offering Price of ETNs:	$2,298,730
Public Offering Price per ETN:	$22.9873
Principal Amount of ETNs:	$2,500,000
Principal Amount per ETN:	$25.00
Trade Date:	March 19, 2015
Settlement Date:	March 19, 2015
Agent:	Credit Suisse Securities (USA) LLC (“CSSU”), an affiliate of the Issuer
Proceeds to Issuer:	100.00% of the Aggregate Offering Price
Agent’s Discount and Commission:	0.00%.  However, CSSU is expected to charge normal commissions for the purchase of the ETNs and may receive all or a portion of the investor fee. In addition, CSSU our agent for any repurchases at the investor’s option may charge investors a redemption charge of up to 0.10% of the stated principal amount of any ETN that is redeemed. For a further description of the fees and commissions payable pertaining to the ETNs please see the section entitled “Supplemental Plan of Distribution (Conflicts of Interest)” in the accompanying pricing supplement.

You may lose some or all of your principal if you invest in the ETNs. See “Risk Factors” beginning on page PS-22 of the accompanying pricing supplement for risks relating to an investment in the ETNs.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined that this pricing supplement addendum, or the accompanying pricing supplement, prospectus supplement and prospectus, is truthful or complete. Any representation to the contrary is a criminal offense. The ETNs 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