Call in number for U.S. participants (866) 788-0546
Call in number for international participants (857) 350-1684         
Participant passcode 64235414                           


The conference call will be available via webcast and can be accessed from the investor relations section of the Company's website at http://www.kronosww.com

The conference call will be available for replay beginning immediately after the call on May 9, 2012 and ending May 16, 2012.

Call in number for the replay:                  

U.S. participants (888) 286-8010
International participants (617) 801-6888
Passcode 27531561

Kronos Worldwide, Inc. is a major international producer of titanium dioxide products.

Source:   Kronos Worldwide, Inc.
Contact:  Janet Keckeisen, Vice President - Investor Relations, (972) 233-1700.


HUG#1606089

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