diff --git a/lib/builder/ProjectBuildContext.js b/lib/builder/ProjectBuildContext.js
index cfad3e2ae..2ff81da50 100644
--- a/lib/builder/ProjectBuildContext.js
+++ b/lib/builder/ProjectBuildContext.js
@@ -1,7 +1,8 @@
 const ResourceTagCollection = require("@ui5/fs").ResourceTagCollection;
 
 const STANDARD_TAGS = Object.freeze({
-	OmitFromBuildResult: "ui5:OmitFromBuildResult"
+	OmitFromBuildResult: "ui5:OmitFromBuildResult",
+	IsBundle: "ui5:IsBundle"
 });
 
 /**
diff --git a/lib/tasks/bundlers/generateBundle.js b/lib/tasks/bundlers/generateBundle.js
index b6a2eeeb4..49698e4ba 100644
--- a/lib/tasks/bundlers/generateBundle.js
+++ b/lib/tasks/bundlers/generateBundle.js
@@ -9,13 +9,16 @@ const ReaderCollectionPrioritized = require("@ui5/fs").ReaderCollectionPrioritiz
  * @param {object} parameters Parameters
  * @param {module:@ui5/fs.DuplexCollection} parameters.workspace DuplexCollection to read and write files
  * @param {module:@ui5/fs.ReaderCollection} parameters.dependencies Collection to read dependency files
+ * @param {module:@ui5/builder.tasks.TaskUtil|object} [parameters.taskUtil] TaskUtil
  * @param {object} parameters.options Options
  * @param {string} parameters.options.projectName Project name
  * @param {ModuleBundleDefinition} parameters.options.bundleDefinition Module bundle definition
  * @param {ModuleBundleOptions} parameters.options.bundleOptions Module bundle options
  * @returns {Promise} Promise resolving with <code>undefined</code> once data has been written
  */
-module.exports = function({workspace, dependencies, options: {projectName, bundleDefinition, bundleOptions}}) {
+module.exports = function({
+	workspace, dependencies, taskUtil, options: {projectName, bundleDefinition, bundleOptions}
+}) {
 	const combo = new ReaderCollectionPrioritized({
 		name: `libraryBundler - prioritize workspace over dependencies: ${projectName}`,
 		readers: [workspace, dependencies]
@@ -29,9 +32,12 @@ module.exports = function({workspace, dependencies, options: {projectName, bundl
 			},
 			resources
 		}).then((bundles) => {
-			bundles.forEach((bundle) => {
-				workspace.write(bundle);
-			});
+			return Promise.all(bundles.map((bundle) => {
+				if (taskUtil) {
+					taskUtil.setTag(bundle, taskUtil.STANDARD_TAGS.IsBundle);
+				}
+				return workspace.write(bundle);
+			}));
 		});
 	});
 };
diff --git a/lib/tasks/bundlers/generateComponentPreload.js b/lib/tasks/bundlers/generateComponentPreload.js
index bbd628cbd..dd14942af 100644
--- a/lib/tasks/bundlers/generateComponentPreload.js
+++ b/lib/tasks/bundlers/generateComponentPreload.js
@@ -11,13 +11,14 @@ const ReaderCollectionPrioritized = require("@ui5/fs").ReaderCollectionPrioritiz
  * @param {object} parameters Parameters
  * @param {module:@ui5/fs.DuplexCollection} parameters.workspace DuplexCollection to read and write files
  * @param {module:@ui5/fs.AbstractReader} parameters.dependencies Reader or Collection to read dependency files
+ * @param {module:@ui5/builder.tasks.TaskUtil|object} [parameters.taskUtil] TaskUtil
  * @param {object} parameters.options Options
  * @param {string} parameters.options.projectName Project name
  * @param {Array} [parameters.options.paths] Array of paths (or glob patterns) for component files
  * @param {Array} [parameters.options.namespaces] Array of component namespaces
  * @returns {Promise<undefined>} Promise resolving with <code>undefined</code> once data has been written
  */
-module.exports = function({workspace, dependencies, options: {projectName, paths, namespaces}}) {
+module.exports = function({workspace, dependencies, taskUtil, options: {projectName, paths, namespaces}}) {
 	const combo = new ReaderCollectionPrioritized({
 		name: `generateComponentPreload - prioritize workspace over dependencies: ${projectName}`,
 		readers: [workspace, dependencies]
@@ -91,6 +92,9 @@ module.exports = function({workspace, dependencies, options: {projectName, paths
 		})
 		.then((processedResources) => {
 			return Promise.all(processedResources.map((resource) => {
+				if (taskUtil) {
+					taskUtil.setTag(resource[0], taskUtil.STANDARD_TAGS.IsBundle);
+				}
 				return workspace.write(resource[0]);
 			}));
 		});
diff --git a/lib/tasks/bundlers/generateLibraryPreload.js b/lib/tasks/bundlers/generateLibraryPreload.js
index d7fc56809..2fc9b842c 100644
--- a/lib/tasks/bundlers/generateLibraryPreload.js
+++ b/lib/tasks/bundlers/generateLibraryPreload.js
@@ -258,11 +258,12 @@ function getSapUiCoreBunDef(name, filters, preload) {
  * @param {object} parameters Parameters
  * @param {module:@ui5/fs.DuplexCollection} parameters.workspace DuplexCollection to read and write files
  * @param {module:@ui5/fs.AbstractReader} parameters.dependencies Reader or Collection to read dependency files
+ * @param {module:@ui5/builder.tasks.TaskUtil|object} [parameters.taskUtil] TaskUtil
  * @param {object} parameters.options Options
  * @param {string} parameters.options.projectName Project name
  * @returns {Promise<undefined>} Promise resolving with <code>undefined</code> once data has been written
  */
-module.exports = function({workspace, dependencies, options: {projectName}}) {
+module.exports = function({workspace, dependencies, taskUtil, options: {projectName}}) {
 	const combo = new ReaderCollectionPrioritized({
 		name: `libraryBundler - prioritize workspace over dependencies: ${projectName}`,
 		readers: [workspace, dependencies]
@@ -311,7 +312,12 @@ module.exports = function({workspace, dependencies, options: {projectName}}) {
 				}),
 			]).then((results) => {
 				const bundles = Array.prototype.concat.apply([], results);
-				return Promise.all(bundles.map((bundle) => workspace.write(bundle)));
+				return Promise.all(bundles.map((bundle) => {
+					if (taskUtil) {
+						taskUtil.setTag(bundle, taskUtil.STANDARD_TAGS.IsBundle);
+					}
+					return workspace.write(bundle);
+				}));
 			});
 		} else {
 			p = Promise.resolve();
@@ -346,7 +352,14 @@ module.exports = function({workspace, dependencies, options: {projectName}}) {
 						return createLibraryBundles(libraryNamespace, resources)
 							.then((results) => {
 								const bundles = Array.prototype.concat.apply([], results);
-								return Promise.all(bundles.map((bundle) => bundle && workspace.write(bundle)));
+								return Promise.all(bundles.map((bundle) => {
+									if (bundle) {
+										if (taskUtil) {
+											taskUtil.setTag(bundle, taskUtil.STANDARD_TAGS.IsBundle);
+										}
+										return workspace.write(bundle);
+									}
+								}));
 							});
 					} else {
 						log.verbose(`Could not determine library namespace from file "${libraryIndicatorPath}" for project ${projectName}. Skipping library preload bundling.`);
diff --git a/lib/tasks/bundlers/generateStandaloneAppBundle.js b/lib/tasks/bundlers/generateStandaloneAppBundle.js
index 968d4e9f4..ecb1bfae5 100644
--- a/lib/tasks/bundlers/generateStandaloneAppBundle.js
+++ b/lib/tasks/bundlers/generateStandaloneAppBundle.js
@@ -52,12 +52,13 @@ function getBundleDefinition(config) {
  * @param {object} parameters Parameters
  * @param {module:@ui5/fs.DuplexCollection} parameters.workspace DuplexCollection to read and write files
  * @param {module:@ui5/fs.AbstractReader} parameters.dependencies Reader or Collection to read dependency files
+ * @param {module:@ui5/builder.tasks.TaskUtil|object} [parameters.taskUtil] TaskUtil
  * @param {object} parameters.options Options
  * @param {string} parameters.options.projectName Project name
  * @param {string} [parameters.options.namespace] Project namespace
  * @returns {Promise<undefined>} Promise resolving with <code>undefined</code> once data has been written
  */
-module.exports = async function({workspace, dependencies, options: {projectName, namespace}}) {
+module.exports = async function({workspace, dependencies, taskUtil, options: {projectName, namespace}}) {
 	if (!namespace) {
 		log.warn(`Namespace of project ${projectName} is not known. Self contained bundling is currently ` +
 			`unable to generate complete bundles for such projects.`);
@@ -108,6 +109,11 @@ module.exports = async function({workspace, dependencies, options: {projectName,
 		})
 	]).then((results) => {
 		const bundles = Array.prototype.concat.apply([], results);
-		return Promise.all(bundles.map((resource) => workspace.write(resource)));
+		return Promise.all(bundles.map((resource) => {
+			if (taskUtil) {
+				taskUtil.setTag(resource, taskUtil.STANDARD_TAGS.IsBundle);
+			}
+			return workspace.write(resource);
+		}));
 	});
 };
diff --git a/lib/tasks/uglify.js b/lib/tasks/uglify.js
index 68a40e6d1..60884fda1 100644
--- a/lib/tasks/uglify.js
+++ b/lib/tasks/uglify.js
@@ -7,15 +7,22 @@ const uglifyProcessor = require("../processors/uglifier");
  * @alias module:@ui5/builder.tasks.uglify
  * @param {object} parameters Parameters
  * @param {module:@ui5/fs.DuplexCollection} parameters.workspace DuplexCollection to read and write files
+ * @param {module:@ui5/builder.tasks.TaskUtil|object} [parameters.taskUtil] TaskUtil
  * @param {object} parameters.options Options
  * @param {string} parameters.options.pattern Pattern to locate the files to be processed
  * @returns {Promise<undefined>} Promise resolving with <code>undefined</code> once data has been written
  */
-module.exports = function({workspace, options: {pattern}}) {
+module.exports = function({workspace, taskUtil, options: {pattern}}) {
 	return workspace.byGlobSource(pattern)
 		.then((allResources) => {
+			let resources = allResources;
+			if (taskUtil) {
+				resources = allResources.filter((resource) => {
+					return !taskUtil.getTag(resource, taskUtil.STANDARD_TAGS.IsBundle);
+				});
+			}
 			return uglifyProcessor({
-				resources: allResources
+				resources
 			});
 		})
 		.then((processedResources) => {
diff --git a/lib/types/application/ApplicationBuilder.js b/lib/types/application/ApplicationBuilder.js
index ec5d11358..5fe22513e 100644
--- a/lib/types/application/ApplicationBuilder.js
+++ b/lib/types/application/ApplicationBuilder.js
@@ -73,6 +73,7 @@ class ApplicationBuilder extends AbstractBuilder {
 				return getTask("generateComponentPreload").task({
 					workspace: resourceCollections.workspace,
 					dependencies: resourceCollections.dependencies,
+					taskUtil,
 					options: {
 						projectName: project.metadata.name,
 						paths: componentPreload.paths,
@@ -86,6 +87,7 @@ class ApplicationBuilder extends AbstractBuilder {
 				return getTask("generateComponentPreload").task({
 					workspace: resourceCollections.workspace,
 					dependencies: resourceCollections.dependencies,
+					taskUtil,
 					options: {
 						projectName: project.metadata.name,
 						namespaces: [project.metadata.namespace]
@@ -98,6 +100,7 @@ class ApplicationBuilder extends AbstractBuilder {
 			return getTask("generateStandaloneAppBundle").task({
 				workspace: resourceCollections.workspace,
 				dependencies: resourceCollections.dependencies,
+				taskUtil,
 				options: {
 					projectName: project.metadata.name,
 					namespace: project.metadata.namespace
@@ -122,6 +125,7 @@ class ApplicationBuilder extends AbstractBuilder {
 					return getTask("generateBundle").task({
 						workspace: resourceCollections.workspace,
 						dependencies: resourceCollections.dependencies,
+						taskUtil,
 						options: {
 							projectName: project.metadata.name,
 							bundleDefinition: bundle.bundleDefinition,
@@ -146,6 +150,7 @@ class ApplicationBuilder extends AbstractBuilder {
 			const uglify = getTask("uglify").task;
 			return uglify({
 				workspace: resourceCollections.workspace,
+				taskUtil,
 				options: {
 					pattern: "/**/*.js"
 				}
diff --git a/lib/types/library/LibraryBuilder.js b/lib/types/library/LibraryBuilder.js
index 9e1833037..f5c977d63 100644
--- a/lib/types/library/LibraryBuilder.js
+++ b/lib/types/library/LibraryBuilder.js
@@ -56,9 +56,9 @@ class LibraryBuilder extends AbstractBuilder {
 				}
 
 				return getTask("generateJsdoc").task({
-					taskUtil,
 					workspace: resourceCollections.workspace,
 					dependencies: resourceCollections.dependencies,
+					taskUtil,
 					options: {
 						projectName: project.metadata.name,
 						namespace: project.metadata.namespace,
@@ -86,6 +86,7 @@ class LibraryBuilder extends AbstractBuilder {
 				return getTask("generateComponentPreload").task({
 					workspace: resourceCollections.workspace,
 					dependencies: resourceCollections.dependencies,
+					taskUtil,
 					options: {
 						projectName: project.metadata.name,
 						paths: componentPreload.paths,
@@ -99,6 +100,7 @@ class LibraryBuilder extends AbstractBuilder {
 			return getTask("generateLibraryManifest").task({
 				workspace: resourceCollections.workspace,
 				dependencies: resourceCollections.dependencies,
+				taskUtil,
 				options: {
 					projectName: project.metadata.name
 				}
@@ -122,6 +124,7 @@ class LibraryBuilder extends AbstractBuilder {
 			return getTask("generateLibraryPreload").task({
 				workspace: resourceCollections.workspace,
 				dependencies: resourceCollections.dependencies,
+				taskUtil,
 				options: {
 					projectName: project.metadata.name
 				}
@@ -136,6 +139,7 @@ class LibraryBuilder extends AbstractBuilder {
 						return getTask("generateBundle").task({
 							workspace: resourceCollections.workspace,
 							dependencies: resourceCollections.dependencies,
+							taskUtil,
 							options: {
 								projectName: project.metadata.name,
 								bundleDefinition: bundle.bundleDefinition,
@@ -172,6 +176,7 @@ class LibraryBuilder extends AbstractBuilder {
 		this.addTask("uglify", async () => {
 			return getTask("uglify").task({
 				workspace: resourceCollections.workspace,
+				taskUtil,
 				options: {
 					pattern: "/resources/**/*.js"
 				}
diff --git a/test/lib/builder/ProjectBuildContext.js b/test/lib/builder/ProjectBuildContext.js
index 85cf7652a..d14b3072c 100644
--- a/test/lib/builder/ProjectBuildContext.js
+++ b/test/lib/builder/ProjectBuildContext.js
@@ -85,15 +85,19 @@ test("STANDARD_TAGS constant", (t) => {
 	});
 
 	t.deepEqual(projectBuildContext.STANDARD_TAGS, {
-		OmitFromBuildResult: "ui5:OmitFromBuildResult"
+		OmitFromBuildResult: "ui5:OmitFromBuildResult",
+		IsBundle: "ui5:IsBundle"
 	}, "Exposes correct STANDARD_TAGS constant");
 });
 
 test.serial("getResourceTagCollection", (t) => {
 	class DummyResourceTagCollection {
 		constructor({allowedTags}) {
-			t.deepEqual(allowedTags, ["ui5:OmitFromBuildResult"],
-				"Correct allowedTags parameter supplied");
+			t.deepEqual(allowedTags, [
+				"ui5:OmitFromBuildResult",
+				"ui5:IsBundle"
+			],
+			"Correct allowedTags parameter supplied");
 		}
 	}
 	mock("@ui5/fs", {