On the Record · Newmarket
Newmarket subsidiaries, as it lists them
The subsidiaries Newmarket lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Afton Argentina Services SRL | Argentina |
| Aditivos Mexicanos S.A. de C.V. | Mexico |
| Afton Chemical Additives Corporation | Virginia |
| Afton Chemical Arabia, LLC | Kingdom of Saudi Arabia |
| Afton Chemical Asia Pacific LLC | Virginia |
| Afton Chemical Asia Pte. Ltd. | Singapore |
| Afton Chemical (Beijing) Co., Ltd. | China |
| Afton Chemical Canada Corporation | Canada |
| Afton Chemical Canada Holdings, Inc | Virginia |
| Afton Chemical CH Holdings S.à .r.l. | Luxembourg |
| Afton Chemical Corporation | Delaware |
| Afton Chemical de Mexico S.A. de C.V. | Mexico |
| Afton Chemical EA Holdings S.à .r.l. | Luxembourg |
| Afton Chemical France succursale D'Afton Chemical SRL | France |
| Afton Chemical GmbH | Germany |
| Afton Chemical India Private Limited | India |
| Afton Chemical Industria de Aditivos Ltda | Brazil |
| Afton Chemical Intangibles LLC | Virginia |
| Afton Chemical International Holdings S.à.r.l. | Luxembourg |
| Afton Chemical Japan Corporation | Japan |
| Afton Chemical Korea Co., Ltd. | Korea |
| Afton Chemical Limited | United Kingdom |
| Afton Chemical Mexico Holdings LLC | Virginia |
| Afton Chemical North Africa SARL AU | Morocco |
| Afton Chemical SRL | Belgium |
| Afton Chemical (Suzhou) Co., Ltd. | China |
| Afton Chemical Switzerland GmbH | Switzerland |
| Afton Chemical UK Holdings Limited | United Kingdom |
| Afton Chemical UK LLP | United Kingdom |
| Afton Cooper Limited | United Kingdom |
| Ethyl Canada Holdings, Inc. | Virginia |
| Ethyl Canada Inc. | Canada |
| Ethyl Corporation | Virginia |
| Foundry Park I, LLC | Virginia |
| Foundry Park II, LLC | Virginia |
| Gamble’s Hill, LLC | Virginia |
| Gamble’s Hill Lab, LLC | Virginia |
| Gamble’s Hill Landing, LLC | Virginia |
| Gamble’s Hill Third Street, LLC | Virginia |
| Gamble’s Hill Tredegar, LLC | Virginia |
| Lewistown Road, LLC | Virginia |
| NewMarket Development Corporation | Virginia |
| NewMarket Investment Company | Virginia |
| NewMarket Services Corporation | Virginia |
| Old Town LLC | Virginia |
| Servicios Afton de Mexico, S.A. de C.V. | Mexico |
| The Edwin Cooper Corporation | Virginia |
| NewMarket Specialty Materials, LLC | Delaware |
| American Pacific Corporation | Delaware |
| American Pacific Corporation | Nevada |
| AMPAC Farms, Inc. | Nevada |
| American Azide Corporation | Nevada |
| Mars TopCo, LLC | Delaware |
| Mars Intermediate, LLC | Delaware |
| Calca Solutions, LLC | Delaware |
| Calca Neutralizing Solutions, LLC | Delaware |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Newmarket’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-12. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.