SECURITIES & EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------

                                SCHEDULE 13G/A *
                                 (Rule 13d-102)

                                 Amendment No. 1


             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED
                              PURSUANT TO 13d-2(b)

                             Innophos Holdings, Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    45774N108
                                 (CUSIP Number)

                                December 31, 2007
             (Date of event which requires filing of this statement)


     Check the appropriate box to designate the rule pursuant to which this
Schedule 13G is filed:
     [X]  Rule 13d-1(b)
     [ ]  Rule 13d-1(c)
     [ ]  Rule 13d-1(d)





                              (Page 1 of 11 Pages)
----------------
     *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 purposes of Section 18 of the Securities Exchange Act
of 1934 ("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).





CUSIP No. 45774N108                 13G/A                 Page 2 of 11 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                                 Ivory Long-Term Master, Ltd.
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [ ]
                                                                  (b)  [x]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                                 Cayman Islands
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         --------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                1,931,600
OWNED BY       --------------------------------------------------------------

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      --------------------------------------------------------------

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                1,931,600
-----------------------------------------------------------------------------
     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
                                                1,931,600
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                9.3%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                 CO
-----------------------------------------------------------------------------
                    ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 45774N108                 13G/A                 Page 3 of 11 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                            Ivory Investment Management, L.P.
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [ ]
                                                                  (b)  [x]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                            Delaware
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         --------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                1,931,600
OWNED BY       --------------------------------------------------------------

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      --------------------------------------------------------------

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                1,931,600
-----------------------------------------------------------------------------
     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
                                                1,931,600
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                9.3%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                 PN
-----------------------------------------------------------------------------
                    ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 45774N108                 13G/A                 Page 4 of 11 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                                           IIM GP, LLC
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [ ]
                                                                  (b)  [x]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                            Delaware
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         --------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                1,931,600
OWNED BY       --------------------------------------------------------------

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      --------------------------------------------------------------

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                1,931,600
-----------------------------------------------------------------------------
     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
            BY EACH REPORTING PERSON
                                                1,931,600
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                9.3%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                 CO
-----------------------------------------------------------------------------
                    ** SEE INSTRUCTIONS BEFORE FILLING OUT!





 CUSIP No. 45774N108                 13G/A                Page 5 of 11 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE
            PERSONS (ENTITIES ONLY)
                                                             Curtis G. Macnguyen
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [ ]
                                                                  (b)  [x]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                                  United States
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         --------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                1,931,600
OWNED BY       --------------------------------------------------------------

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      --------------------------------------------------------------

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                1,931,600
-----------------------------------------------------------------------------
     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
            BY EACH REPORTING PERSON
                                                1,931,600
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                9.3%
-----------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                 IN
-----------------------------------------------------------------------------
                    ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 45774N108                 13G/A                Page 6 of 11 Pages

Item 1(a).     Name of Issuer:

   The name of the issuer is Innophos Holdings, Inc. (the "Issuer").

Item 1(b).     Address of Issuer's Principal Executive Offices:

The Issuer's principal executive offices are located at 259 Prospect Plains
Road, Cranbury, New Jersey 08512.

Item 2(a).     Name of Person Filing:

     This statement is filed by:

                  (i) Ivory Long-Term Master, Ltd., a Cayman Islands corporation
                  ("Ivory Long-Term Master Fund"), with respect to the shares of
                  Common Stock directly owned by it;

                  (ii) Ivory Investment Management, L.P., a Delaware limited
                  partnership (the "Investment Manager"), with respect to the
                  shares of Common Stock directly owned by Ivory Long-Term
                  Master Fund

                  (iii) IIM GP, LLC, a Delaware limited liability company ("IIM
                  GP") which serves as general partner to the Investment
                  Manager, with respect to the shares of Common Stock directly
                  owned by Ivory Long-Term Master Fund; and

                  (iv) Curtis G. Macnguyen, with respect to shares of Common
                  Stock directly owned by Ivory Long-Term Master Fund.





CUSIP No. 45774N108                 13G/A                Page 7 of 11 Pages

     The foregoing persons are hereinafter sometimes collectively referred to as
the "Reporting Persons." Any disclosures herein with respect to persons other
than the Reporting Persons are made on information and belief after making
inquiry to the appropriate party.

Item 2(b).     Address of Principal Business Office or, if None, Residence:

     The address of the principal business office of each of the Reporting
Persons is 11755 Wilshire Boulevard, Suite 1350, Los Angeles, California 90025.

Item 2(c).     Citizenship:

     Ivory Long-Term Master Fund is a corporation organized under the laws of
the Cayman Islands. The Investment Manager is a limited partnership organized
under the laws of the State of Delaware. IIM GP is a limited liability company
organized under the laws of the State of Delaware. Mr. Macnguyen is a United
States citizen.

Item 2(d).     Title of Class of Securities:

     Common Stock, par value $0.0001 per share (the "Common Stock").

Item 2(e).  CUSIP Number:  45774N108

Item 3. If this statement is filed pursuant to Rules 13d-1(b) or 13d-2(b) or
(c), check whether the person filing is a:

          (a) [ ] Broker or dealer registered under Section 15 of the Act,

          (b) [ ] Bank as defined in Section 3(a)(6) of the Act,

          (c) [ ] Insurance Company as defined in Section 3(a)(19) of the
                  Act,

          (d) [ ] Investment Company registered under Section 8 of the
                  Investment Company Act of 1940,

          (e) [X] Investment Adviser in accordance with Rule 13d-1
                  (b)(1)(ii)(E),

          (f) [ ] Employee Benefit Plan or Endowment Fund in accordance
                  with Rule 13d-1 (b)(1)(ii)(F),

          (g) [ ] Parent Holding Company or control person in accordance
                  with Rule 13d-1 (b)(1)(ii)(G),





CUSIP No. 45774N108                 13G/A                Page 8 of 11 Pages

          (h) [ ] Savings Association as defined in Section 3(b) of the
                  Federal Deposit Insurance Act,

          (i) [ ] Church Plan that is excluded from the definition of an
                  investment company under Section 3(c)(14) of the Investment
                  Company Act of 1940,

          (j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

Item 4.   Ownership.

     A.   Ivory Long-Term Master, Ltd.
               (a) Amount beneficially owned:  1,931,600
               (b) Percent of class: 9.3%
                   The percentages of class used herein and in the rest of Item
                   4 are calculated based upon the 20,866,891 shares of Common
                   Stock outstanding as of November 1, 2007, as reported by the
                   Company in its Form 10-Q for the fiscal quarter ending
                   September 30, 2007. The percentages reported herein reflect
                   the beneficial ownership of the Reporting Persons as of the
                   date of the event which necessitated this filing.
               (c)(i) Sole power to vote or direct the vote: 0
                 (ii) Shared power to vote or direct the vote: 1,931,600
                (iii) Sole power to dispose or direct the disposition: 0
                 (iv) Shared power to dispose or direct the disposition:
                      1,931,600


     C.   Ivory Investment Management, L.P.
               (a) Amount beneficially owned:  1,931,600
               (b) Percent of class: 9.3%
               (c)(i) Sole power to vote or direct the vote: 0
                 (ii) Shared power to vote or direct the vote: 1,931,600
                (iii) Sole power to dispose or direct the disposition: 0
                 (iv) Shared power to dispose or direct the disposition:
                      1,931,600

      D.  IIM GP, LLC
               (a) Amount beneficially owned: 1,931,600
               (b) Percent of class:  9.3%
               (c)(i) Sole power to vote or direct the vote: 0
                 (ii) Shared power to vote or direct the vote: 1,931,600
                (iii) Sole power to dispose or direct the disposition: 0
                 (iv) Shared power to dispose or direct the disposition:
                      1,931,600

      G.  Curtis G. Macnguyen
               (a) Amount beneficially owned: 1,931,600
               (b) Percent of class:  9.3%
               (c)(i) Sole power to vote or direct the vote: 0
                 (ii) Shared power to vote or direct the vote: 1,931,600
                (iii) Sole power to dispose or direct the disposition: 0
                 (iv) Shared power to dispose or direct the disposition:
                      1,931,600





CUSIP No. 45774N108                 13G/A                Page 9 of 11 Pages

Item 5.     Ownership of Five Percent or Less of a Class.

     Not Applicable.

Item 6.     Ownership of More than Five Percent on Behalf of Another Person.

     The Investment Manager, as the investment manager to Ivory Long-Term
Master Fund has the power to direct the investment activities of Ivory Long-Term
Master Fund, including decisions with respect to the receipt of dividends from,
and the disposition of the proceeds from the sale of, the Common Shares. IIM GP
is the general partner of the Investment Manager. Mr. Macnguyen is a managing
member of IIM GP and in that capacity directs its operations.

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.

Item 10.  Certification.

     Each of the Reporting Persons hereby makes the following certification:

          By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above 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.





CUSIP No. 45774N108                 13G/A                Page 10 of 11 Pages


SIGNATURES

After reasonable inquiry and to the best of our knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.



DATED:  February 14, 2008

                                 /s/ Curtis G. Macnguyen
                                 -----------------------
                                 Curtis G. Macnguyen, individually and as
                                 managing member of IIM GP, LLC, for itself
                                 and as general partner of Ivory Investment
                                 Management, L.P. and investment manager to
                                 Ivory Long-Term Master, Ltd.




CUSIP No. 45774N108                 13G/A                Page 11 of 11 Pages


                                    EXHIBIT 1

                           JOINT ACQUISITION STATEMENT

                            PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule
13G/A is filed on behalf of each of the undersigned and that all subsequent
amendments to this statement on Schedule 13G/A, shall be filed on behalf of each
of the undersigned without the necessity of filing additional joint acquisition
statements. The undersigned acknowledge that each shall be responsible for the
timely filing of such amendments, and for the completeness and accuracy of the
information concerning him or it contained therein, but shall not be responsible
for the completeness and accuracy of the information concerning the others,
except to the extent that he or it knows or has reason to believe that such
information is inaccurate.

DATED:  February 14, 2008

                                 /s/ Curtis G. Macnguyen
                                 -----------------------
                                 Curtis G. Macnguyen, individually and as
                                 managing member of IIM GP, LLC, for itself
                                 and as general partner of Ivory Investment
                                 Management, L.P. and investment manager to
                                 Ivory Long-Term Master, Ltd.