| Subsidiary | | Country | | Functional Currency | |
| Arauco do Brasil S.A. | | Brazil | | Brazilian Real | |
| Arauco Forest Brasil S.A. | | Brazil | | Brazilian Real | |
| Arauco Florestal Arapoti S.A. | | Brazil | | Brazilian Real | |
| Arauco Industria de Paineis Ltda. | | Brazil | | Brazilian Real | |
| Empreendimentos Florestais Santa Cruz Ltda. | | Brazil | | Brazilian Real | |
| Mahal Empreendimentos e Participacoes S.A. | | Brazil | | Brazilian Real | |
| Investigaciones Forestales Bioforest S.A. | | Chile | | Chilean Pesos | |
| Consorcio Protección Fitosanitaria Forestal S.A. | | Chile | | Chilean Pesos | |
| Forestal Nuestra Señora del Carmen S.A. | | Argentina | | Argentine Pesos | |
| Forestal Talavera S.A. | | Argentina | | Argentine Pesos | |
| Greeneagro S.A. | | Argentina | | Argentine Pesos | |
| Leasing Forestal S.A. | | Argentina | | Argentine Pesos | |
| Savitar S.A. | | Argentina | | Argentine Pesos | |
| Flakeboard Company Limited | | Canada | | Canadian Dollar | |