diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/IMaterialCategoryBootstrap.java b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/IMaterialCategoryBootstrap.java
new file mode 100644
index 000000000..d33a4cd91
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/IMaterialCategoryBootstrap.java
@@ -0,0 +1,34 @@
+/*
+ * This file is part of ###PROJECT_NAME###
+ *
+ * Copyright (C) 2009 Fundación para o Fomento da Calidade Industrial e
+ *                    Desenvolvemento Tecnolóxico de Galicia
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.navalplanner.business.materials.entities;
+
+import org.navalplanner.business.IDataBootstrap;
+
+/**
+ * Contratct for {@link MaterialCategory}.
+ *
+ * @author Manuel Rego Casasnovas <mrego@igalia.com>
+ */
+public interface IMaterialCategoryBootstrap extends IDataBootstrap {
+
+    void loadRequiredData();
+
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/MaterialCategoryBootstrap.java b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/MaterialCategoryBootstrap.java
new file mode 100644
index 000000000..fe9229b1f
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/MaterialCategoryBootstrap.java
@@ -0,0 +1,56 @@
+/*
+ * This file is part of ###PROJECT_NAME###
+ *
+ * Copyright (C) 2009 Fundación para o Fomento da Calidade Industrial e
+ *                    Desenvolvemento Tecnolóxico de Galicia
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.navalplanner.business.materials.entities;
+
+import org.navalplanner.business.calendars.entities.CalendarExceptionType;
+import org.navalplanner.business.materials.daos.IMaterialCategoryDAO;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * Creates the default {@link CalendarExceptionType}.
+ *
+ * @author Manuel Rego Casasnovas <mrego@igalia.com>
+ */
+@Component
+@Scope("singleton")
+public class MaterialCategoryBootstrap implements IMaterialCategoryBootstrap {
+
+    @Autowired
+    private IMaterialCategoryDAO materialCategoryDAO;
+
+    @Override
+    @Transactional
+    public void loadRequiredData() {
+        for (PredefinedMaterialCategories predefinedMaterialCategory : PredefinedMaterialCategories
+                .values()) {
+            if (!materialCategoryDAO
+                    .existsMaterialCategoryWithNameInAnotherTransaction(predefinedMaterialCategory
+                            .getName())) {
+                materialCategoryDAO.save(predefinedMaterialCategory
+                        .createMaterialCategory());
+            }
+        }
+    }
+
+}
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/PredefinedMaterialCategories.java b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/PredefinedMaterialCategories.java
new file mode 100644
index 000000000..ddef15c59
--- /dev/null
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/PredefinedMaterialCategories.java
@@ -0,0 +1,59 @@
+/*
+ * This file is part of ###PROJECT_NAME###
+ *
+ * Copyright (C) 2009 Fundación para o Fomento da Calidade Industrial e
+ *                    Desenvolvemento Tecnolóxico de Galicia
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.navalplanner.business.materials.entities;
+
+import org.navalplanner.business.common.Registry;
+import org.navalplanner.business.common.exceptions.InstanceNotFoundException;
+
+
+/**
+ * Defines the default {@link MaterialCategory}.
+ *
+ * @author Manuel Rego Casasnovas <mrego@igalia.com>
+ */
+public enum PredefinedMaterialCategories {
+
+    IMPORTED_MATERIALS_WITHOUT_CATEGORY("Imported materials without category");
+
+    private final String name;
+
+    private PredefinedMaterialCategories(String name) {
+        this.name = name;
+    }
+
+    public MaterialCategory createMaterialCategory() {
+        return MaterialCategory.create(name);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public MaterialCategory getMaterialCategory() {
+        try {
+            return Registry.getMaterialCategoryDAO()
+                    .findUniqueByNameInAnotherTransaction(name);
+        } catch (InstanceNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}
\ No newline at end of file