UNITED STATES SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 ---------------------- SCHEDULE 13G/A Under the Securities Exchange Act of 1934 Tronox Incorporated (Name of Issuer) Class A common stock, $0.01 par value per share (Title of Class of Securities) 897051-10-8 (CUSIP Number) December 31, 2006 (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: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) ---------------- *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). Page 1 of 11 Pages CUSIP No. 897051-10-8 13G/A Pages 2 of 11 Pages ------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Highbridge Capital Management, LLC 20-1901985 ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] ------------------------------------------------------------------------------- (3) SEC USE ONLY ------------------------------------------------------------------------------- 4) CITIZENSHIP OR PLACE OF ORGANIZATION State of Delaware ------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ---------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 5,100 shares of Common Stock OWNED BY ---------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 5,100 shares of Common Stock ------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,100 shares of Common Stock ------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] ------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.03% ------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** OO - Limited Liability Company ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 897051-10-8 13G/A Pages 3 of 11 Pages (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Highbridge Fixed Income Opportunity Master Fund, L.P. ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] ------------------------------------------------------------------------------- (3) SEC USE ONLY ------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands, British West Indies ------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ---------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 3,570 shares of Common Stock OWNED BY ---------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 3,570 shares of Common Stock ------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,570 shares of Common Stock ------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] ------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.02% ------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** PN ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 897051-10-8 13G/A Pages 4 of 11 Pages (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Highbridge Fixed Income Opportunity Institutional Fund, Ltd. ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] ------------------------------------------------------------------------------- (3) SEC USE ONLY ------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands, British West Indies ------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ---------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 1,530 shares of Common Stock OWNED BY ---------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 1,530 shares of Common Stock ------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,530 shares of Common Stock ------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] ------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.01% ------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** CO ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 897051-10-8 13G/A Pages 5 of 11 Pages ------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Glenn Dubin ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] ------------------------------------------------------------------------------- (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 5,100 shares of Common Stock OWNED BY ---------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 5,100 shares of Common Stock ------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,100 shares of Common Stock ------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] ------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.03% ------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** IN ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 897051-10-8 13G/A Pages 6 of 11 Pages ------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Henry Swieca ------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] ------------------------------------------------------------------------------- (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 5,100 shares of Common Stock OWNED BY ---------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ---------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 5,100 shares of Common Stock ------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,100 shares of Common Stock ------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] ------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.03% ------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** IN ------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 897051-10-8 13G/A Pages 7 of 11 Pages This Amendment No. 1 (this "Amendment") amends the report on Schedule 13G (the "Schedule 13G") filed by the Highbridge International LLC on December 2, 2005 relating to Class A common stock, $0.01 par value (the "Common Stock") of Tronox Incorporated (the "Company"). Capitalized terms used herein but not otherwise defined have the meanings set forth in the Schedule 13G. This amendment amends and restates items 2(a), 2(b), 2(c), 4, 5 and 8 in there entirety as set forth below. Item 2(a). Name of Person Filing Item 2(b). Address of Principal Business Office Item 2(c). Citizenship Highbridge Fixed Income Opportunity Master Fund, L.P. c/o Highbridge Capital Management, LLC 9 West 57th Street, 27th Floor New York, New York 10019 Citizenship: Cayman Islands, British West Indies Highbridge Fixed Income Opportunity Institutional Fund, Ltd. c/o Highbridge Capital Management, LLC 9 West 57th Street, 27th Floor New York, New York 10019 Citizenship: Cayman Islands, British West Indies Highbridge Capital Management, LLC 9 West 57th Street, 27th Floor New York, New York 10019 Citizenship: State of Delaware Glenn Dubin c/o Highbridge Capital Management, LLC 9 West 57th Street, 27th Floor New York, New York 10019 Citizenship: United States Henry Swieca c/o Highbridge Capital Management, LLC 9 West 57th Street, 27th Floor New York, New York 10019 Citizenship: United States 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: As of the date of this filing, (i) Highbridge Fixed Income Opportunity Master Fund, L.P. owns 3,570 shares of Common Stock, (ii) Highbridge Fixed Income Opportunity Institutional Fund, Ltd. owns 1,530 shares of Common Stock and (iii) each of Highbridge Capital Management LLC, Glenn Dubin and Henry Swieca may be deemed the beneficial owner of the 5,100 shares of Common Stock CUSIP No. 897051-10-8 13G/A Pages 8 of 11 Pages owned by Highbridge Fixed Income Opportunity Master Fund, L.P. and Highbridge Fixed Income Opportunity Institutional Fund, Ltd. Highbridge Capital Management, LLC is the trading manager of Highbridge Fixed Income Opportunity Master Fund, L.P. and Highbridge Fixed Income Opportunity Institutional Fund, Ltd. Glenn Dubin is a Co-Chief Executive Officer of Highbridge Capital Management, LLC. Henry Swieca is a Co-Chief Executive Officer of Highbridge Capital Management, LLC. The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of shares of Common Stock owned by another Reporting Person. In addition, each of Highbridge Capital Management, LLC, Glenn Dubin and Henry Swieca disclaims beneficial ownership of shares of Common Stock owned by Highbridge Fixed Income Opportunity Master Fund, L.P. and Highbridge Fixed Income Opportunity Institutional Fund, Ltd. (b) Percent of class: The Company's Quarterly Report on Form 10-Q that was filed on November 14, 2006, indicates there were 18,356,778 shares of Common Stock outstanding as of October 31, 2006. Therefore, based on the Company's outstanding shares of Common Stock (i) Highbridge Fixed Income Opportunity Master Fund, L.P. may be deemed to beneficially own 0.02% of the outstanding shares of Common Stock of the Company, (ii) Highbridge Fixed Income Opportunity Institutional Fund, Ltd. may be deemed to beneficially own 0.01% of the outstanding shares of Common Stock of the Company and (iii) each of Highbridge Capital Management, LLC, Glenn Dubin and Henry Swieca may be deemed to beneficially own 0.03% of the outstanding shares of Common Stock of the Company. The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of shares of Common Stock owned by another Reporting Person. (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 See Item 4(a) (iii) Sole power to dispose or to direct the disposition of 0 (iv) Shared power to dispose or to direct the disposition of See Item 4(a) Item 5. Ownership of Five Percent or Less of a 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 [x]. CUSIP No. 897051-10-8 13G/A Pages 9 of 11 Pages Item 8. Identification and Classification of Members of the Group See Exhibit I. Exhibits: Exhibit I: Joint Filing Agreement, dated as of February 14, 2007, by and among Highbridge Fixed Income Opportunity Master Fund, L.P., Highbridge Fixed Income Opportunity Institutional Fund, Ltd., Highbridge Capital Management, LLC, Glenn Dubin and Henry Swieca. CUSIP No. 897051-10-8 13G/A Pages 10 of 11 Pages SIGNATURES After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct. Dated: February 14, 2007 HIGHBRIDGE FIXED INCOME HIGHBRIDGE FIXED INCOME OPPORTUNITY MASTER FUND, L.P. OPPORTUNITY INSTITUTIONAL FUND, LTD. By: Highbridge Capital Management, LLC By: Highbridge Capital Management, LLC its trading manager its trading manager By: By: /s/ Carolyn Rubin By: By: /s/ Carolyn Rubin ------------------------------- ---------------------------------- Name: Carolyn Rubin Name: Carolyn Rubin Title: Managing Director Title: Managing Director HIGHBRIDGE CAPITAL MANAGEMENT, LLC /s/ Glenn Dubin -------------------------------------- GLENN DUBIN By: /s/ Carolyn Rubin ------------------------------- Name: Carolyn Rubin Title: Managing Director /s/ Henry Swieca ------------------------------ HENRY SWIECA CUSIP No. 897051-10-8 13G/A Pages 11 of 11 Pages EXHIBIT I JOINT FILING AGREEMENT This will confirm the agreement by and among the undersigned that the Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the Common Stock, $0.01 par value, of Tronox Incorporated, a Delaware corporation, is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Dated as of February 14, 2007 HIGHBRIDGE FIXED INCOME HIGHBRIDGE FIXED INCOME OPPORTUNITY MASTER FUND, L.P. OPPORTUNITY INSTITUTIONAL FUND, LTD. By: Highbridge Capital Management, LLC By: Highbridge Capital Management, LLC its trading manager its trading manager By: By: /s/ Carolyn Rubin By: By: /s/ Carolyn Rubin --------------------------------- ----------------------------------- Name: Carolyn Rubin Name: Carolyn Rubin Title: Managing Director Title: Managing Director HIGHBRIDGE CAPITAL MANAGEMENT, LLC /s/ Glenn Dubin -------------------------------------- GLENN DUBIN By: /s/ Carolyn Rubin -------------------------------- Name: Carolyn Rubin Title: Managing Director /s/ Henry Swieca ------------------------------------ HENRY SWIECA