diff --git a/fixtures/components/system-tag/example/index.tsx b/fixtures/components/system-tag/example/index.tsx
new file mode 100644
index 0000000..49f0f5b
--- /dev/null
+++ b/fixtures/components/system-tag/example/index.tsx
@@ -0,0 +1,50 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import * as React from 'react';
+
+export namespace ExampleProps {
+  export type Variant =
+    /** primary use-case */
+    | 'primary'
+    /**
+     * secondary use-case
+     * @awsuiSystem core
+     * */
+    | 'secondary';
+}
+
+export interface ExampleProps {
+  /**
+   * Color
+   *
+   * @awsuiSystem core
+   */
+  color?: string;
+
+  /**
+   * Font family
+   *
+   * More text
+   * @awsuiSystem core
+   * @awsuiSystem something
+   */
+  fontFamily?: string;
+
+  /**
+   * Variant
+   */
+  variant?: ExampleProps.Variant;
+
+  /**
+   * Main content
+   */
+  children?: React.ReactNode;
+}
+
+export default function Example({ color, fontFamily, children }: ExampleProps) {
+  return (
+    <button color={color} style={{ fontFamily }}>
+      {children}
+    </button>
+  );
+}
diff --git a/fixtures/components/system-tag/tsconfig.json b/fixtures/components/system-tag/tsconfig.json
new file mode 100644
index 0000000..82c6d86
--- /dev/null
+++ b/fixtures/components/system-tag/tsconfig.json
@@ -0,0 +1,7 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "."
+  },
+  "include": ["./**/*.tsx"]
+}
diff --git a/src/components/build-definition.ts b/src/components/build-definition.ts
index 33bcfbd..286f405 100644
--- a/src/components/build-definition.ts
+++ b/src/components/build-definition.ts
@@ -135,6 +135,9 @@ export default function buildDefinition(
     functions: buildMethodsDefinition(objects.find(def => def.name === 'Ref')),
     properties: onlyProps.map(prop => {
       const { typeName, typeDefinition } = getPropertyType(prop.type);
+      const systemTags = prop.comment?.tags
+        ?.filter(tag => tag.tagName.toLowerCase() === 'awsuisystem')
+        .map(tag => tag?.text.trim());
       return {
         name: prop.name,
         type: typeName,
@@ -142,6 +145,7 @@ export default function buildDefinition(
         optional: schema.utils.isOptionalDeclaration(prop),
         description: schema.code.buildNodeDescription(prop),
         defaultValue: defaultValues[prop.name],
+        systemTags: systemTags?.length ? systemTags : undefined,
         visualRefreshTag: prop.comment?.tags?.find(tag => tag.tagName === 'visualrefresh')?.text.trim(),
         deprecatedTag: prop.comment?.tags?.find(tag => tag.tagName === 'deprecated')?.text.trim(),
         i18nTag: prop.comment?.tags?.some(tag => tag.tagName === 'i18n') || undefined,
diff --git a/src/components/interfaces.ts b/src/components/interfaces.ts
index bf02fb7..e700c35 100644
--- a/src/components/interfaces.ts
+++ b/src/components/interfaces.ts
@@ -19,6 +19,8 @@ export interface ComponentProperty {
   inlineType?: TypeDefinition;
   defaultValue?: string;
   analyticsTag?: string;
+  visualRefreshTag?: string;
+  systemTags?: Array<string>;
 }
 
 export interface ComponentRegion {
diff --git a/test/components/system-tag.test.ts b/test/components/system-tag.test.ts
new file mode 100644
index 0000000..a645f7b
--- /dev/null
+++ b/test/components/system-tag.test.ts
@@ -0,0 +1,49 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import { ComponentDefinition } from '../../src/components/interfaces';
+import { buildProject } from './test-helpers';
+
+let component: ComponentDefinition;
+beforeAll(() => {
+  const result = buildProject('system-tag');
+  expect(result).toHaveLength(1);
+
+  component = result[0];
+});
+
+test('should have correct region definitions', () => {
+  expect(component.properties).toEqual([
+    {
+      name: 'color',
+      description: 'Color',
+      type: 'string',
+      optional: true,
+      systemTags: ['core'],
+    },
+    {
+      name: 'fontFamily',
+      description: 'Font family\nMore text',
+      type: 'string',
+      optional: true,
+      systemTags: ['core', 'something'],
+    },
+    {
+      name: 'variant',
+      description: 'Variant',
+      type: 'string',
+      optional: true,
+      inlineType: {
+        name: 'ExampleProps.Variant',
+        type: 'union',
+        values: ['primary', 'secondary'],
+      },
+    },
+  ]);
+  expect(component.regions).toEqual([
+    {
+      name: 'children',
+      description: 'Main content',
+      isDefault: true,
+    },
+  ]);
+});