SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
(Rule 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13d-1(b),(c), AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2(b)
(Amendment No. 10)*
Minerals Technologies Inc.
--------------------------------------------------------------------------------
(Name of Issuer)
Common Stock
--------------------------------------------------------------------------------
(Title of Class of Securities)
603158106
--------------------------------------------------------------------------------
(CUSIP Number)
26 January 2010
--------------------------------------------------------------------------------
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[ ] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[X] Rule 13d-1(d)
--------------------------------------------------------------------------------
1 The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of
the Securities Exchange Act of 1934 (the "Act") or otherwise subject
to the liabilities of that section
of the Act, but shall be subject to all other provisions of the Act
however, see the Notes.)
(Continued on following pages)
Page 1 of 5 Pages
CUSIP No. 603158106 Schedule 13G Page 2 of 5 Pages
----------- --------------
1. NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
M&G Investment Funds (1)
No I.R.S Identification Number
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF THE MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3. SEC USE ONLY
--------------------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
United Kingdom, England
--------------------------------------------------------------------------------
5. SOLE VOTING POWER
NUMBER OF 0
SHARES ------------------------------------------------------------
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 930,675
EACH ------------------------------------------------------------
REPORTING 7. SOLE DISPOTIVE POWER
PERSON 0
WITH ------------------------------------------------------------
8. SHARED DISPOTIVE POWER
930,675
--------------------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
930,675
--------------------------------------------------------------------------------
10. CHECK BOX IF AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES* [_]
--------------------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.96%
--------------------------------------------------------------------------------
12. TYPE OF REPORTING PERSON
OO
--------------------------------------------------------------------------------
CUSIP No. 603158106 Schedule 13G Page 3 of 5 Pages
----------- --------------
Item 1(a). Name of Issuer:
Minerals Technologies Inc.
Item 1(b). Address of Issuer's Principal Executive Offices:
The Chrysler Building, 405 Lexington Avenue, New York,
NY 10174, United States
Item 2(a). Name of Person Filing:
M&G Investment Funds 1
Item 2(b). Address of Principal Business Office or, if None,
Residence:
Governor's House, Laurence Pountney Hill, London, EC4R 0HH
Item 2(c). Citizenship:
United Kingdom, England
Item 2(d). Title of Class of Securities:
Common Stock
Item 2(e). CUSIP Number:
603158106
Item 3. Type of Person:
M&G Investment Management Limited (MAGIM) is an investment
advisor in accordance with
s.240.13d-1(b)(1)(ii)(E)
M&G Investment Funds 1 is an open-ended investment company with variable
capital, incorporated in England and Wales and authorized by the Financial
Services Authority.
It is not registered with the Securities and Exchange Commission
under the investment company act of 1940.
All the securities covered by this report are legally owned by M&G
investment funds 1, MAGIM's Investment advisory client,
and none are owned directly by MAGIM.
Item 4. Ownership.
Provide the following information regarding the aggregate
number and percentage of the class of securities of the issuer
identified in Item 1.
(a) Amount Beneficially Owned: M&G, in its capacity as investment manager,
may be deemed to beneficially owned: 930,675 shares
(b) Percent of Class: 4.96%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
----------
(ii) shared power to vote or to direct the
vote 930,675
----------
(iii) sole power to dispose or to direct the
disposition of 0
----------
(iv) shared power to dispose or to direct the
disposition of 930,675
----------
CUSIP No. 603158106 Schedule 13G Page 4 of 5 Pages
----------- --------------
Item 5. Ownership of Five Percent or Less of Class.
If this statement is being filed to report the fact that as of the
date hereof the reporting person has ceased to be the beneficial
owner of more than five percent of the class of securities, check
the following
Yes.
Item 6. Ownership of More than Five Percent on Behalf of Another
Person.
Not applicable.
Item 7. Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on by the Parent Holding
Company.
Not applicable.
Item 8. Identification and Classification of Members of the Group.
Not applicable.
Item 9. Notice of Dissolution of Group.
Not Applicable
CUSIP No. 603158106 Schedule 13G Page 5 of 5 Pages
----------- --------------
Item 10. Certification.
-------------
(a) The following certification shall be included if the statement
is filed pursuant to Rule 13d-1(b):
"By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired
and are held in the ordinary course of business and were not
acquired and are not held for the purpose of or with the
effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in
connection with or as a participant in any transaction
having that purpose or effect. "
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true,
complete and correct.
By: --//Mark Thomas//--
--------------------------------------
Name: Mark Thomas
Title: Head of Group Funds
Date: February 05, 2010