| Filed On | Filing |
|---|---|
| 25 Mar 2026 | DEF 14A |
| 26 Mar 2025 | DEF 14A |
| 27 Mar 2024 | DEF 14A |
| 29 Mar 2023 | DEF 14A |
| 30 Mar 2022 | NL INDUSTRIES, INC. DEF14A |
| 31 Mar 2021 | NL INDUSTRIES, INC. SCHEDULE 14A |
| 02 Apr 2020 | NL INDUSTRIES, INC. SCHEDULE 14A |
| 26 Mar 2019 | NL INDUSTRIES, INC. SCHEDULE 14A |
| 28 Mar 2018 | NL INDUSTRIES, INC. SCHEDULE 14A DATED MAY 17, 2018 |
| 29 Mar 2017 | SCHEDULE 14A FOR NL INDUSTRIES, INC. |
| 29 Mar 2016 | SCHEDULE 14A NL INDUSTRIES, INC. 2016 |
| 01 Apr 2015 | NL INDUSTRIES, INC. 2014 SCHEDULE 14A |
| 02 Apr 2014 | PROXY FOR NL INDUSTRIES, INC. APRIL 2014 |
| 04 Apr 2013 | NL INDUSTRIES, INC. SCHEDULE 14A |
| 04 Apr 2012 | NL INDUSTRIES, INC. DEF 14A 2012 |
| 06 Apr 2011 | NL INDUSTRIES, INC. DEF 14/A |
| 07 Apr 2010 | NL DEF 14A PROXY NL INDUSTRIES, INC. |
| 09 Apr 2009 | NL INDUSTRIES, INC. PROXY 4-9-09 |
| 15 Apr 2008 | NL INDUSTRIES, INC. SCHEDULE 14A |
| 19 Apr 2007 | NL INDUSTRIES, INC. PROXY |
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