diff --git a/app/controllers/establishment.controller.js b/app/controllers/establishment.controller.js
index 156a1f3..e91832b 100644
--- a/app/controllers/establishment.controller.js
+++ b/app/controllers/establishment.controller.js
@@ -9,6 +9,7 @@ const Emirate = db.Emirate;
 const user = db.user;
 const User = db.user;
 const Product = db.Product;
+const IsicMaster = db.IsicMaster;
 const ExcelJS = require("exceljs");
 const { Op, Sequelize } = require("sequelize");
 const { sendEmail } = require("../services/emailHelper"); 
@@ -59,7 +60,7 @@ exports.createEstablishment = async (req, res) => {
       "permanent_factory_code",
       "industry_code",
       "license_number",
-      "isic_code"
+      "isic_code",
     ].forEach(key => {
       if (req.body[key] === "") req.body[key] = null;
     });
@@ -107,7 +108,8 @@ exports.createEstablishment = async (req, res) => {
       total_employees,
       created_by,
       establishment_user,
-      establishment_products
+      establishment_products,
+      ERN
     } = req.body;
 
     //  Basic Validation
@@ -148,10 +150,10 @@ exports.createEstablishment = async (req, res) => {
     //   });
     // }
     if (!isic_code) {
-          return res.status(400).send({
-            status: "failed",
-            message: "Missing required field: Industry Code (Current Production)",
-          });
+      return res.status(400).send({
+        status: "failed",
+        message: "Missing required field: Industry Code (Current Production)",
+      });
     }
    if (!corporate_email) {
       return res.status(400).send({
@@ -240,6 +242,7 @@ exports.createEstablishment = async (req, res) => {
       non_emirati_female,
       total_emirati,
       total_employees,
+      ERN: sanitizeStringValue(ERN),
       created_by: req.body.created_by || req.user.id,
       created_at: new Date(),
     });
@@ -725,6 +728,8 @@ exports.updateEstablishment = async (req, res) => {
     estData.updated_at = estData.updated_at || new Date();
     // update establishment
     await establishment.update(estData);
+
+
     if (req.body.is_active === true || req.body.is_active === false) {
       await EstablishmentUser.update(
         {
@@ -2069,3 +2074,44 @@ exports.downloadCompanyProfileSample = async (req, res) => {
   }
 };
 
+
+exports.searchIsicMaster = async (req, res) => {
+
+  const { code, description } = req.query;
+
+  try {
+    const whereClause = { is_active: true };
+
+    if (code || description) {
+      const orConditions = [];
+
+      if (code) {
+        orConditions.push({ code: { [Op.like]: `%${code}%` } });
+      }
+
+      if (description) {
+        orConditions.push({ description: { [Op.like]: `%${description}%` } });
+      }
+
+      whereClause[Op.or] = orConditions;
+    }
+
+    const rows = await IsicMaster.findAll({ where: whereClause });
+
+    return res.status(200).json({
+      success: "success",
+      count: rows.length,
+      data: rows,
+    });
+
+    
+  } catch (error) {
+    return res.status(500).json({
+      success: "failed",
+      message: "Internal server error",
+      error: error.message,
+    });
+  }
+
+};
+
diff --git a/app/models/IsicMaster.model.js b/app/models/IsicMaster.model.js
new file mode 100644
index 0000000..56f9939
--- /dev/null
+++ b/app/models/IsicMaster.model.js
@@ -0,0 +1,31 @@
+// models/IsicMaster.js
+module.exports = (sequelize, DataTypes) => {
+    const IsicMaster = sequelize.define(
+      "IsicMaster",
+      {
+        id: {
+          type: DataTypes.INTEGER,
+          autoIncrement: true,
+          primaryKey: true,
+        },
+        code: {
+            type: DataTypes.STRING(20),
+            allowNull: true,
+          },
+        description: {
+          type: DataTypes.STRING(100),
+          allowNull: false,
+        },
+        is_active: {
+          type: DataTypes.BOOLEAN,
+          defaultValue: true,
+        },
+      },
+      {
+        tableName: "isic_master",
+      }
+    );
+  
+    return IsicMaster;
+  };
+  
\ No newline at end of file
diff --git a/app/models/establishment.model.js b/app/models/establishment.model.js
index eb8d5b2..577a47c 100644
--- a/app/models/establishment.model.js
+++ b/app/models/establishment.model.js
@@ -73,6 +73,7 @@ module.exports = (sequelize, DataTypes) => {
           type: DataTypes.INTEGER,
           allowNull: true,
         },
+        ERN: { type: DataTypes.STRING },
       },
       {
         timestamps: false,
diff --git a/app/models/index.js b/app/models/index.js
index 052aa67..5c6d497 100644
--- a/app/models/index.js
+++ b/app/models/index.js
@@ -34,6 +34,7 @@ db.Isic2DigitIndices = require("./isic2DigitIndices.model.js")(sequelize, DataTy
 db.Isic3DigitIndices = require("./isic3DigitIndices.model.js")(sequelize, DataTypes);
 db.Isic4DigitIndices = require("./isic4DigitIndices.model.js")(sequelize, DataTypes);
 db.CalculationLog = require("./calculation_log.model.js")(sequelize, DataTypes);
+db.IsicMaster = require("./IsicMaster.model.js")(sequelize, DataTypes);
 // Associations
 db.Establishment.hasMany(db.EstablishmentUser, {
   foreignKey: "establishment_id",
diff --git a/app/routes/routes.js b/app/routes/routes.js
index a133fca..d7d2396 100644
--- a/app/routes/routes.js
+++ b/app/routes/routes.js
@@ -591,6 +591,7 @@ router.get("/testEmail", establishmentController.testEmail);
  *               non_emirati_female: { type: integer }
  *               total_emirati: { type: integer }
  *               total_employees: { type: integer }
+ *               ERN: { type: string }
  *               created_by: { type: integer }
  *               establishment_user:
  *                 type: object
@@ -767,6 +768,7 @@ router.get("/establishments/:id",[verifySignature, verifyToken], establishmentCo
  *               non_emirati_female: { type: integer }
  *               total_emirati: { type: integer }
  *               total_employees: { type: integer }
+ *               ERN: { type: string }
  *               updated_by: { type: integer }
  *               establishment_products:
  *                 type: array
@@ -849,6 +851,31 @@ router.post("/establishments/uploadCSV",[verifySignature, verifyToken, upload.si
 
 
 
+/**
+ * @swagger
+ * /api/searchIsicMaster:
+ *   get:
+ *     summary: Get all Isic Master data 
+ *     tags: [Establishments]
+ *     security:
+ *       - appSignature: []
+ *       - CSRF: []
+ *         cookieAuth: []   # or bearerAuth: [] if you use Authorization header
+ *     parameters:
+ *       - in: query
+ *         name: code
+ *         schema: { type: string }
+ *       - in: query
+ *         name: description
+ *         schema: { type: string }
+ *     responses:
+ *       200:
+ *         description: Fetched  successfully
+ *       500:
+ *         description: Internal server error
+ */
+router.get("/searchIsicMaster",[verifySignature, verifyToken], establishmentController.searchIsicMaster);
+