diff --git a/Libraries/Core/Models/Eft/Common/Globals.cs b/Libraries/Core/Models/Eft/Common/Globals.cs
index be22b670..574517b5 100644
--- a/Libraries/Core/Models/Eft/Common/Globals.cs
+++ b/Libraries/Core/Models/Eft/Common/Globals.cs
@@ -1291,11 +1291,17 @@ public record Class
 
 public record Mastering
 {
+    [JsonPropertyName("Id")]
+    public string? Id { get; set; }
+    
     [JsonPropertyName("Name")]
     public string? Name { get; set; }
 
     [JsonPropertyName("Templates")]
     public List<string>? Templates { get; set; }
+    
+    [JsonPropertyName("Progress")]
+    public double? Progress { get; set; }
 
     // Checked in client
     [JsonPropertyName("Level2")]