diff --git a/src/Resources/ComercioExteriorCatalogs.php b/src/Resources/ComercioExteriorCatalogs.php
new file mode 100644
index 0000000..37c524e
--- /dev/null
+++ b/src/Resources/ComercioExteriorCatalogs.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Facturapi\Resources;
+
+use Facturapi\Http\BaseClient;
+use Facturapi\Exceptions\Facturapi_Exception;
+
+class ComercioExteriorCatalogs extends BaseClient
+{
+    protected $ENDPOINT = 'catalogs/comercioexterior/2.0';
+
+    /**
+     * Search tariff fractions (Fracciones Arancelarias)
+     * @param array|null $params Search parameters (e.g., ["q" => "0101", "page" => 0, "limit" => 10])
+     * @return JSON search result
+     * @throws Facturapi_Exception
+     */
+    public function searchTariffFractions($params = null)
+    {
+        try {
+            return json_decode(
+                $this->execute_get_request(
+                    $this->get_request_url("tariff-fractions") . $this->array_to_params($params)
+                )
+            );
+        } catch (Facturapi_Exception $e) {
+            throw new Facturapi_Exception('Unable to search tariff fractions: ' . $e->getMessage());
+        }
+    }
+}