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                                                           August 31, 2018

Peter Matt
Chief Financial Officer
Constellium N.V.
Tupolevlaan 41-61,
1119 NW Schiphol-Rijk
The Netherlands

       Re: Constellium N.V.

Dear Mr. Matt:

       We have limited our review of your filing to the financial statements
and related
disclosures and have the following comments. In some of our comments, we may
ask you to
provide us with information so we may better understand your disclosure.

       Please respond to these comments within ten business days by providing
the requested
information or advise us as soon as possible when you will respond. If you do
not believe our
comments apply to your facts and circumstances, please tell us why in your
response.

       After reviewing your response to these comments, we may have additional
comments.

Form 20-F for the Fiscal Year Ended December 31, 2017

Note 17 - Investments Accounted for Under the Equity Method, page F-40

1.    We note that you account for your 51% interest in the joint venture with
UACJ using the
      equity method. Please tell us the factors you considered in determining
that consolidation
      of this joint venture was not required. Please explain your basis for
concluding
      consolidation is not required and how you considered the factors in
paragraph 7 of IFRS
      10.
General

2.    On pages 37 and 40, you identify Airbus, Daimler AG, BMW, Volkswagen and
the PSA
      Group as customers.Each of these companies includes your products in its
own products,
      and each sells its products in Syria and/or Sudan.Syria and Sudan are
designated by the
      U.S. Department of State as state sponsors of terrorism, and are subject
to U.S. sanctions
      and/or export controls. You do not provide disclosure about these
countries in your Form
 Peter Matt
Constellium N.V.
August 31, 2018
Page 2
         20-F. Please describe to us the nature and extent of any past,
current, and anticipated
         contacts with Syria and/or Sudan, including with their governments,
whether through
         subsidiaries, distributors, resellers, or other direct or indirect
arrangements.
       In closing, we remind you that the company and its management are
responsible for the
accuracy and adequacy of their disclosures, notwithstanding any review,
comments, action or
absence of action by the staff.

        You may contact Tracey McKoy, Staff Accountant, at (202) 551-3772, or
in her absence,
Nudrat Salik, Staff Accountant, at (202) 551-3692, or Terence O'Brien,
Accounting Branch
Chief, at (202) 551-3355 with any questions.



                                                               Sincerely,
FirstName LastNamePeter Matt
                                                               Division of
Corporation Finance
Comapany NameConstellium N.V.
                                                               Office of
Manufacturing and
August 31, 2018 Page 2                                         Construction
FirstName LastName
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