diff --git a/apex/builder.go b/apex/builder.go
index 50c8dd1..8c5f99b 100644
--- a/apex/builder.go
+++ b/apex/builder.go
@@ -305,6 +305,32 @@
 	return output.OutputPath
 }
 
+// buildNoticeFiles creates a buile rule for aggregating notice files from the modules that
+// contributes to this APEX. The notice files are merged into a big notice file.
+func (a *apexBundle) buildNoticeFiles(ctx android.ModuleContext, apexFileName string) android.NoticeOutputs {
+	var noticeFiles android.Paths
+
+	a.WalkPayloadDeps(ctx, func(ctx android.ModuleContext, from blueprint.Module, to android.ApexModule, externalDep bool) bool {
+		if externalDep {
+			// As soon as the dependency graph crosses the APEX boundary, don't go further.
+			return false
+		}
+		noticeFiles = append(noticeFiles, to.NoticeFiles()...)
+		return true
+	})
+
+	// TODO(jiyong): why do we need this? WalkPayloadDeps should have already covered this.
+	for _, fi := range a.filesInfo {
+		noticeFiles = append(noticeFiles, fi.noticeFiles...)
+	}
+
+	if len(noticeFiles) == 0 {
+		return android.NoticeOutputs{}
+	}
+
+	return android.BuildNoticeOutput(ctx, a.installDir, apexFileName, android.SortedUniquePaths(noticeFiles))
+}
+
 // buildInstalledFilesFile creates a build rule for the installed-files.txt file where the list of
 // files included in this APEX is shown. The text file is dist'ed so that people can see what's
 // included in the APEX without actually downloading and extracting it.
@@ -616,11 +642,12 @@
 			optFlags = append(optFlags, "--logging_parent ", a.overridableProperties.Logging_parent)
 		}
 
-		// Create a NOTICE file, and embed it as an asset file in the APEX.
-		a.htmlGzNotice = android.PathForModuleOut(ctx, "NOTICE", "NOTICE.html.gz")
-		android.BuildNoticeHtmlOutputFromLicenseMetadata(ctx, a.htmlGzNotice)
-		implicitInputs = append(implicitInputs, a.htmlGzNotice)
-		optFlags = append(optFlags, "--assets_dir "+filepath.Dir(a.htmlGzNotice.String()))
+		a.mergedNotices = a.buildNoticeFiles(ctx, a.Name()+suffix)
+		if a.mergedNotices.HtmlGzOutput.Valid() {
+			// If there's a NOTICE file, embed it as an asset file in the APEX.
+			implicitInputs = append(implicitInputs, a.mergedNotices.HtmlGzOutput.Path())
+			optFlags = append(optFlags, "--assets_dir "+filepath.Dir(a.mergedNotices.HtmlGzOutput.String()))
+		}
 
 		if (moduleMinSdkVersion.GreaterThan(android.SdkVersion_Android10) && !a.shouldGenerateHashtree()) && !compressionEnabled {
 			// Apexes which are supposed to be installed in builtin dirs(/system, etc)