EXHIBIT 23.3



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM







     We hereby consent to the use in this Registration  Statement on Form S-4 of
our  report  dated  March  30,  2005  relating  to  the  consolidated  financial
statements of Kronos Denmark ApS, which appears in such Registration  Statement.
We also  consent to the  reference  to us under the  heading  "Experts"  in such
Registration Statement.







                                                     PricewaterhouseCoopers LLP

Dallas, Texas
March 30, 2005