Tronox SC 13D TRONOX / LaGrange Capital Partners ownership change

Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Class B Common Stock, $0.01 par value per share, of Tronox Incorporated.  This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  August 27, 2010	LaGrange Capital Partners, L.P.
	By:	LaGrange Capital Management, L.L.C. its General Partner
	By:	/s/ Frank LaGrange Johnson
		Frank LaGrange Johnson, its sole Member

LaGrange Capital Management, L.L.C.
By:	/s/ Frank LaGrange Johnson
	Frank LaGrange Johnson, its sole Member

LaGrange Capital Partners Offshore Fund, Ltd.
By:	LaGrange Capital Administration, L.L.C. its Investment Manager
By:	/s/ Frank LaGrange Johnson
	Frank LaGrange Johnson, its Managing Member

LaGrange Special Situations Yield Master Fund, Ltd.
By:	LaGrange Capital Administration, L.L.C. its Investment Manager
By:	/s/ Frank LaGrange Johnson
	Frank LaGrange Johnson, its Managing Member

LaGrange Capital Administration, L.L.C.
By:	/s/ Frank LaGrange Johnson
	Frank LaGrange Johnson, its Managing Member

/s/ Frank LaGrange Johnson

FRANK LAGRANGE JOHNSON