Exhibit 21
GCP APPLIED TECHNOLOGIES INC.
U.S. SUBSIDIARIES
SUBSIDIARY NAME | STATE OF INCORPORATION |
| AP Chem Incorporated | MD |
| Construction Products Dubai, Inc. | DE |
| Darex Puerto Rico, Inc. | DE |
| De Neef Construction Chemicals (US) Inc. | TX |
| Dewey and Almy, LLC | DE |
| GCP International Inc. | DE |
| GCP Chemicals Inc. | DE |
| GCP Europe Inc. | DE |
| Hanover Square Corporation | DE |
| Verifi LLC | DE |
| Water Street Corporation | DE |
1
Exhibit 21
GCP APPLIED TECHNOLOGIES INC.
NON-U.S. SUBSIDIARIES
| ARGENTINA |
| W. R. Grace Argentina S.A. |
| AUSTRALIA |
| GCP Australia Pty. Ltd. |
| BELGIUM |
| De Neef Construction Chemicals BVBA |
| GCP Applied Technologies N.V./S.A. |
| GCP Construction Products N.V. |
| Inverco Benelux N.V. |
| BRAZIL |
| GCP Brasil Indústria e Comércio de Produtos Químicos Ltda |
| CANADA |
| GCP Canada Inc. |
| CHILE |
| GCP Quimica Compania Limitada |
| CHINA - PEOPLE’S REPUBLIC OF |
| GCP Applied Technologies (China) Company Limited |
| COLOMBIA |
| GCP Colombia S.A. |
| FRANCE |
| De Neef France S.A.R.L. |
| GCP Produits de Construction SAS |
| GERMANY |
| De Neef Deutschland GmbH |
| GCP Applied Technologies Holdings Germany GmbH |
| GCP Germany GmbH |
| GREECE |
| GCP Applied Technologies Hellas LLC |
| HONG KONG |
| De Neef Construction Chemicals (China) Limited |
| GCP (Hong Kong) Limited |
| INDIA |
| GCP Applied Technologies (India) Private Limited |
| INDONESIA |
| PT. GCP Applied Technologies Indonesia |
| IRELAND |
| GCP Products (Ireland) Limited |
| ITALY |
| GCP Italiana S.p.A. |
| JAPAN |
| GCP Applied Technologies Holdings Japan GK |
2
Exhibit 21
| GCP Chemicals Kabushiki Kaisha |
| KOREA |
| GCP Korea Inc. |
| MALAYSIA |
| GCP Applied Technologies (Malaysia) Sendiran Berhad |
| MEXICO |
| GCP Applied Technologies S.A. de C.V. |
| NEW ZEALAND |
| GCP (New Zealand) Limited |
| PANAMA |
| W. R. Grace (Panama) S.A. |
| PHILIPPINES |
| GCP Applied Technologies Operations Center, Inc. |
| GCP Applied Technologies Products (Philippines) Inc. |
| POLAND |
| GCP (Poland) Sp.z o.o. |
| PORTUGAL |
| De Neef Portugal, LDA |
| RUSSIA |
| GCP Rus LLC |
| SINGAPORE |
| De Neef Asia Pte. Ltd. |
| GCP (Singapore) Private Limited |
| SOUTH AFRICA |
| GCP Applied Technologies Africa (Pty) Ltd. |
| SPAIN |
| De Neef Technologies S.L. |
| GCP Construction Materials Spain, S.L. |
| SWEDEN |
| De Neef Scandinavia AB |
| GCP Sweden AB |
| GCP Applied Technologies Sweden AB |
| SWITZERLAND |
| De Neef (CH) AG |
| GCP Switzerland S.A. |
| Union Société Financière S.à.r.l. |
| TAIWAN |
| GCP Taiwan, Inc. |
| THAILAND |
| GCP Applied Technologies Holdings (Thailand) Limited |
| TURKEY |
| GCP Uygulamalı Teknolojiler ve Yapi Kimyasallari Sanayi ve Ticaret A.S |
| UNITED ARAB EMIRATE |
| Cormix Midle East LLC |
3
Exhibit 21
| Emirates Chemicals LLC |
| UNITED KINGDOM |
| De Neef UK Ltd. |
| GCP Applied Technologies Holdings (UK) Limited |
| GCP Applied Technologies (UK) Limited |
| GCP Construction Products Holdings (UK) Limited |
| GCP International Holdings (UK) Limited |
| GCP Products UK Limited |
| GCP (UK) Holdings Limited |
| GCP RIW Holdings Limited |
| RIW Holdings Limited |
| R.I.W. Limited |
| Stirling Lloyd Group Limited |
| Stirling Lloyd Holdings Limited |
| Stirling Lloyd Limited |
| Stirling Lloyd Polychem Limited |
| Stirling Lloyd Products International Limited |
| VENEZUELA |
| GCP Tecnologías Venezuela, S.A. |
| VIETNAM |
| GCP Vietnam Company Limited |
4