UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): ~~June~~ 1May 25, ~~2007~~2012

Structured Products Corp.

on behalf of

~~Cast~~CorTS ~~Step-Up~~ Trust VI for ~~Morgan~~IBM ~~Stanley Notes~~Debentures

(Exact name of registrant as specified in its charter)

~~Delaware~~	~~001-31757~~Delaware	13811-~~3692801~~21967	13-3692801
~~(State or other jurisdiction of incorporation or organization)~~	(~~Commission~~State ~~File~~or ~~Number~~other jurisdiction of incorporation or organization)	(~~IRS~~Commission ~~Employer~~File ~~Identification~~ Number)	(IRS Employer Identification Number)
388 Greenwich Street New York, New York	10013	(212) 816-7496
	390 Greenwich Street New York, New York	10013	(212) 723-4070
~~(Address of principal executive offices)~~	(~~Zip~~Address ~~Code~~of principal executive offices)	(~~Registrant's~~Zip ~~telephone number including area code~~Code)	(Registrant's telephone number including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17CFR 240.13e-4(c))

Section 8 - Other Events

Item 8.01 Other Events.

This current report on Form 8-K relates to a distribution made to holders of the Certificates issued by the ~~Cast~~CorTS ~~Step-Up~~ Trust VI for ~~Morgan~~IBM ~~Stanley Notes~~Debentures.

The ~~issuer~~Warrantholder ofhas ~~the~~given ~~underlying~~notice ~~securities,~~to orthe ~~guarantor~~Trustee ~~thereof,~~to orexercise ~~successor~~all ~~thereto,~~Call asWarrants ~~applicable,~~for ~~is subject to~~ the ~~information~~purchase ~~reporting~~of ~~requirements~~all of the ~~Securities~~Term ~~Exchange~~Assets ~~Act~~held ofby ~~1934, as amended (~~the ~~"Exchange~~Trust, ~~Act"). Periodic reports~~ and ~~other~~agrees ~~information required~~ to bemake ~~filed~~payment ~~pursuant~~equal to the ~~Exchange~~sum ~~Act, by the issuer~~ of the ~~underlying~~principal ~~securities,~~amount orof ~~guarantor thereof, or successor thereto, as applicable, may be inspected and copied at~~ the ~~public~~Term ~~reference~~Assets ~~facilities~~being ~~maintained~~purchased bypursuant ~~the~~to ~~Securities and Exchange Commission (~~the ~~"Commission")~~exercise atof ~~450 Fifth Street, N.W., Washington, D.C. 20549. The Commission also maintains a site on~~ the ~~World~~Call ~~Wide~~Warrants ~~Web~~plus ataccrued ~~"http://www.sec.gov" at which users can view~~ and ~~download~~unpaid ~~copies~~interest ofto ~~reports, proxy~~ and ~~information~~including ~~statements and other information filed electronically through~~ the ~~Electronic~~Warrant ~~Data~~Exercise ~~Gathering~~Date, ~~Analysis~~determined ~~and Retrieval system. Neither Structured Products Corp. nor the trustee has participated in the preparation of such reporting documents, or made any due diligence investigation with respect~~ to ~~the information provided therein. Neither Structured Products Corp. nor the trustee has verified the accuracy or completeness of such documents or reports. There can~~ be ~~no assurance that events affecting the issuer of the underlying securities~~Monday, orJune ~~guarantor thereof~~11, or2012 ~~successor thereto, as applicable, or~~ (the ~~underlying~~“Warrant ~~securities~~Exercise ~~have~~Date” ~~not occurred~~ or ~~have~~“Redemption ~~not yet been publicly disclosed which would affect the accuracy or completeness of the publicly available documents described above~~Date”).

Underlying Securities Issuer(s) or Guarantor, or successor thereto	Exchange Act File Number
Morgan Stanley	001-11758

THE EXERCISE OF THE CALL WARRANTS IS CONDITIONAL UPON RECEIPT BY THE TRUSTEE OF THE WARRANT EXERCISE PURCHASE PRICE ON THE WARRANT EXERCISE DATE. THERE CAN BE NO ASSURANCE THAT THE CALL WARRANTS WILL IN FACT BE EXERCISED ON THE WARRANT EXERCISE DATE.

~~Section~~ If 9the -Trustee ~~Financial~~receives ~~Statements~~the Warrant Exercise Purchase Price by 11:00 a.m. (New York City time) on the Redemption Date, then (i) $60,000,000 Class A Certificates issued by the Trust will be redeemed in full on the Redemption Date at a price of $25.00 per Class A Certificate plus accrued interest of $0.044271 per Class A Certificate to the Redemption Date, and ~~Exhibits~~$0.208333 accrued interest plus the Warrant Class B Purchase Price of $117.060449 on the Class B Certificate to the Redemption Date.

~~Item~~Further, 9with respect to IBM’s exchange offer announced May 21, 2012 related to the 7.01125% ~~Financial~~Debentures ~~Statements~~due ~~and~~December ~~Exhibits~~1, 2096, the Underlying Securities for the CorTS Callable Trust Certificates, CorTS Trust VI for IBM Debentures, the Warrantholder has notified the Trustee that it does not consent to the exchange.

If the Certificates are redeemed, no interest will accrue on such Certificates after the Redemption Date. If the Trustee does not receive the Warrant Exercise Purchase Price, then (ci) ~~Exhibits:~~ the Certificates issued by the Trust will not be redeemed and will continue to accrue distributions as if no exercise notice had been given and (ii) the Warrantholder may elect to deliver a conditional notice of exercise in the future.

~~1. Trustee’s Report with respect to the June 1, 2007 Distribution Date for the CAST Step-Up Trust for Morgan Stanley Notes~~2

2SIGNATURES

~~SIGNATURES~~Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

~~Pursuant~~By: to/s/ ~~the~~Stanley ~~requirements~~Louie of________________________________ ~~the~~Name: ~~Securities~~Stanley ~~Exchange~~Louie ~~Act~~Title: ofVice ~~1934~~President, ~~the~~Finance ~~registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized~~Officer.

~~By:~~May ~~/s/~~25, ~~John W. Dickey Name: John W. Dickey Title: Authorized Signatory~~2012

~~June 1, 2007~~ 3

EXHIBIT INDEX

Exhibit		Page
1	Trustee’s Report with respect to the June 1, 2007 Distribution Date for the Cast Step-Up Trust for Morgan Stanley Notes	5

Exhibit 1

To the Holders of: CAST Step-Up Trust for Morgan Stanley Notes Monthly-Pay Step-Up Class A Certificates *CUSIP: 14835T AB4 Class B Certificates *CUSIP: 14835T AA6

U.S. Bank Trust National Association, as Trustee for the CAST Step-Up Trust for Morgan Stanley Notes (the “Trust”), hereby gives notice with respect to the Distribution Date of June 1, 2007 (the “Distribution Date”) as follows:

1. The amount of the distribution payable to the Certificateholders on the Distribution Date allocable to principal and premium, if any, and interest, expressed as a dollar amount per $1,000 Class A Certificate and per $1,000 Notional Amount of Class B Certificates, is as set forth below:

Class	Principal	Interest	Total Distribution
A	$ 0.000000	$ 4.375000	$ 4.375000
B	$ 0.000000	$ 0.000000	$ 0.000000

2. The amount of aggregate interest due and not paid as of the Distribution Date is $0.000000.

3. The Class A Certificates bear interest at the rate of 5.25% and the Class B Certificates bear interest at a rate of .05% during the period ending on the Distribution Date.

4. No fees have been paid to the Trustee or any other party from the proceeds of the Term Assets.

5. $15,000,000 aggregate principal amount of Morgan Stanley f/k/a Morgan Stanley Dean Witter & Co. 5.30% Notes due March 1, 2013 (the “Term Assets”) are held for the above trust.

6. At the close of business on the Distribution Date, 15,000 Class A Certificates representing $15,000,000 aggregate Certificate Principal Balance and $15,000,000 aggregate Notional Amount of Class B Certificates were outstanding.

7. The Notional Amount of the ISDA Master Agreement, the Schedule thereto and the Confirmation thereto each dated July 25, 2003 between the Trust and Citigroup Global Markets Limited (collectively the “Swap”), is $15,000,000. Payment of the obligations of Citigroup Global Markets Limited under the Swap is guaranteed by Citigroup Global Markets Holdings Inc. under a Guarantee Agreement dated July 25, 2003.

8. The current rating of the Term Assets is not provided in this report. Ratings can be obtained from Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc., by calling 212-438-2400 and from Moody’s Investors Service, Inc. by calling 212-553-0377.

U.S. Bank Trust National Association, as Trustee

* The Trustee shall not be held responsible for the selection or use of the CUSIP number nor is any representation made as to its correctness. It is included for the convenience of the Holders.

Filing Compare · Structured Products Corp. CorTS Trust VI for IBM Debentures