| Subsidiary | Jurisdiction of Incorporation | |||||||
| 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 | |||||||