Company: KRO
Filing Date: 2025-03-31
Form Type: DEFA14A
Source: 0000059255-25-000013
Chunk: 1

Company: KRONOS WORLDWIDE INC
Filing Date: 2025-03-31
Form: DEFA14A
Chunk 1
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07 – Michael S. Simmons | 08 – R. Gerald Turner |

| 2. | Nonbinding advisory vote approving executive compensation. |

| 3. | In their discretion, the proxies are authorized to vote upon such other business as may properly come before the Meeting and any adjournment or postponement thereof. |

The Board recommends a vote FORall nominees listed and FORProposal 2. The Securities and Exchange Commission rules permit us to make our proxy materials available to our stockholders via the Internet. Proxy materials for this annual meeting and future meetings may be requested by one of the following methods:

| INTERNET  | To view your proxy materials online, go to https://web.viewproxy.com/KronosWorldwide/2025. Have the 11 digit control number available when you access the website and follow the instructions.                |
| TELEPHONE | 877-777-2857TOLL FREE                                                                                                                                                                                         |
| E-MAIL    | requests@viewproxy.com                                                                                                                                                                                        
 * If requesting material by e-mail, please send a blank e-mail with the company name and your 11 digit control number (located below) in the subject line. No other requests, instructions or other inquiries 
 should be included with your e-mail requesting proxy materials.                                                                                                                                               |

You must use the 11 digit control number located in the box below.

| CONTROL NO. |

KRONOS WORLDWIDE, INC. 5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240-2620 The following proxy materials are available to you to review at: http://www.viewproxy.com/KronosWorldwide/2025 • 2024 Annual Report • Notice of Annual Meeting and Proxy Statement ACCESSING YOUR PROXY MATERIALS ONLINE Have this notice available when you request a paper copy of the proxy materials or to vote your proxy electronically. You must reference your control number to vote by Internet or request a hard copy. You May Vote Your Proxy When You View The Material On The Internet. You Will Be Asked To Follow The Prompts To Vote Your Shares. Your electronic vote authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated and returned the proxy card. Internet and telephone voting is available through 11:59 P.M. Eastern Daylight Time on May 13, 2025. REQUESTING A PAPER COPY OF THE PROXY MATERIALS By telephone please call 1-877-777-2857toll free or By logging onto