diff --git a/app/Models/WorkGroupMaster.php b/app/Models/WorkGroupMaster.php
new file mode 100644
index 0000000..e4fc980
--- /dev/null
+++ b/app/Models/WorkGroupMaster.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class WorkGroupMaster extends Model
+{
+     use SoftDeletes;
+
+    protected $fillable = [
+        'plant_id',
+        'name',
+        'description',
+        'operation_number',
+        'created_at',
+        'updated_at',
+        'created_by',
+    ];
+
+    public function plant(): BelongsTo
+    {
+        return $this->belongsTo(Plant::class);
+    }
+
+    // public function rejectReasons()
+    // {
+    //     return $this->hasMany(RejectReason::class, 'work_group_master_id', 'id');
+    // }
+}