diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a7ae52..72e26fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [4.14.0] 2026-03-04
+### Added
+- Add `facturapi.comercioExteriorCatalogs.searchTariffFractions` method for Fracción Arancelaria SAT catalog
+
 ## [4.13.1] 2026-02-11
 
 ### Fixed
diff --git a/src/index.ts b/src/index.ts
index db9941e..f8c33ed 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -11,6 +11,7 @@ import * as enums from './enums';
 import { createWrapper, WrapperClient } from './wrapper';
 import { DEFAULT_API_VERSION } from './constants';
 import CartaPorteCatalogs from './tools/cartaPorteCatalogs';
+import ComercioExteriorCatalogs from './tools/comercioExteriorCatalogs';
 
 export * from './enums';
 export * from './types';
@@ -38,6 +39,7 @@ export default class Facturapi {
   organizations: Organizations;
   catalogs: Catalogs;
   cartaPorteCatalogs: CartaPorteCatalogs;
+  comercioExteriorCatalogs: ComercioExteriorCatalogs;
   receipts: Receipts;
   retentions: Retentions;
   tools: Tools;
@@ -118,6 +120,7 @@ export default class Facturapi {
     this.organizations = new Organizations(this._wrapper);
     this.catalogs = new Catalogs(this._wrapper);
     this.cartaPorteCatalogs = new CartaPorteCatalogs(this._wrapper);
+    this.comercioExteriorCatalogs = new ComercioExteriorCatalogs(this._wrapper);
     this.receipts = new Receipts(this._wrapper);
     this.retentions = new Retentions(this._wrapper);
     this.tools = new Tools(this._wrapper);
diff --git a/src/tools/comercioExteriorCatalogs.ts b/src/tools/comercioExteriorCatalogs.ts
new file mode 100644
index 0000000..83044d3
--- /dev/null
+++ b/src/tools/comercioExteriorCatalogs.ts
@@ -0,0 +1,20 @@
+import { WrapperClient } from '../wrapper';
+
+export default class ComercioExteriorCatalogs {
+  client: WrapperClient;
+
+  constructor(client: WrapperClient) {
+    this.client = client;
+  }
+
+  /**
+   * Search tariff fractions for Comercio Exterior
+   * @param {Object} params - Search parameters (q, page, limit)
+   * @returns {Promise}
+   */
+  searchTariffFractions(params: { q: string; page?: number; limit?: number }) {
+    return this.client.get('/catalogs/comercioexterior/2.0/tariff-fractions', {
+      params,
+    });
+  }
+}