diff --git a/Extractor/Nodes/UAReferenceType.cs b/Extractor/Nodes/UAReferenceType.cs
index 508a38a5..124fe25f 100644
--- a/Extractor/Nodes/UAReferenceType.cs
+++ b/Extractor/Nodes/UAReferenceType.cs
@@ -27,6 +27,7 @@ namespace Cognite.OpcUa.Nodes
     public class ReferenceTypeAttributes : BaseNodeAttributes
     {
         public string? InverseName { get; set; }
+        public bool IsAbstract { get; set; }
         public ReferenceTypeAttributes() : base(NodeClass.ReferenceType)
         {
         }
@@ -34,6 +35,7 @@ public ReferenceTypeAttributes() : base(NodeClass.ReferenceType)
         public override IEnumerable<uint> GetAttributeSet(FullConfig config)
         {
             yield return Attributes.InverseName;
+            yield return Attributes.IsAbstract;
             foreach (var attr in base.GetAttributeSet(config)) yield return attr;
         }
 
@@ -44,6 +46,9 @@ public override void LoadAttribute(DataValue value, uint attributeId, TypeManage
                 case Attributes.InverseName:
                     InverseName = value.GetValue<LocalizedText?>(null)?.Text;
                     break;
+                case Attributes.IsAbstract:
+                    IsAbstract = value.GetValue(false);
+                    break;
                 default:
                     base.LoadAttribute(value, attributeId, typeManager);
                     break;
@@ -53,6 +58,7 @@ public override void LoadAttribute(DataValue value, uint attributeId, TypeManage
         public void LoadFromNodeState(ReferenceTypeState state)
         {
             InverseName = state.InverseName?.Text;
+            IsAbstract = state.IsAbstract;
             LoadFromBaseNodeState(state);
         }
     }
diff --git a/Extractor/Pushers/FDM/BaseDataModelDefinitions.cs b/Extractor/Pushers/FDM/BaseDataModelDefinitions.cs
index 44e90498..2740cddc 100644
--- a/Extractor/Pushers/FDM/BaseDataModelDefinitions.cs
+++ b/Extractor/Pushers/FDM/BaseDataModelDefinitions.cs
@@ -279,6 +279,13 @@ public static ContainerCreate ReferenceType(string space)
                 UsedFor = UsedFor.node,
                 Properties = new Dictionary<string, ContainerPropertyDefinition>
                 {
+                    { "IsAbstract", new ContainerPropertyDefinition
+                    {
+                        Type = BasePropertyType.Create(PropertyTypeVariant.boolean),
+                        Nullable = false,
+                        Name = "IsAbstract",
+                        DefaultValue = new RawPropertyValue<bool>(false)
+                    } },
                     { "InverseName", new ContainerPropertyDefinition
                     {
                         Type = BasePropertyType.Text(),
diff --git a/Extractor/Pushers/FDM/InstanceBuilder.cs b/Extractor/Pushers/FDM/InstanceBuilder.cs
index f123fd22..0979b6af 100644
--- a/Extractor/Pushers/FDM/InstanceBuilder.cs
+++ b/Extractor/Pushers/FDM/InstanceBuilder.cs
@@ -541,10 +541,13 @@ class ReferenceTypeData
         [JsonPropertyName("InverseName")]
         [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
         public string? InverseName { get; }
+        [JsonPropertyName("IsAbstract")]
+        public bool IsAbstract { get; }
 
         public ReferenceTypeData(UAReferenceType node)
         {
             InverseName = node.FullAttributes.InverseName;
+            IsAbstract = node.FullAttributes.IsAbstract;
         }
     }
 
diff --git a/Extractor/Pushers/FDM/TypeMetadata.cs b/Extractor/Pushers/FDM/TypeMetadata.cs
index cf592fd4..ce4af078 100644
--- a/Extractor/Pushers/FDM/TypeMetadata.cs
+++ b/Extractor/Pushers/FDM/TypeMetadata.cs
@@ -18,6 +18,8 @@ public class PropertyNode
         public string? ReferenceType { get; set; }
         public string? DisplayName { get; set; }
         public string? ExternalId { get; set; }
+        public string? Description { get; set; }
+        public bool IsTimeseries { get; set; }
     }
 
 
diff --git a/Extractor/Pushers/FDM/Types/NodeTypes.cs b/Extractor/Pushers/FDM/Types/NodeTypes.cs
index 43e379be..df63a651 100644
--- a/Extractor/Pushers/FDM/Types/NodeTypes.cs
+++ b/Extractor/Pushers/FDM/Types/NodeTypes.cs
@@ -57,7 +57,9 @@ public TypeMetadata GetTypeMetadata()
                         IsMandatory = pair.mandatory,
                         ReferenceType = pair.reference.Type.Id.ToString(),
                         DisplayName = pair.node.Name ?? "",
-                        ExternalId = FDMUtils.SanitizeExternalId(pair.node.Name ?? "")
+                        ExternalId = FDMUtils.SanitizeExternalId(pair.node.Name ?? ""),
+                        IsTimeseries = !pair.node.IsRawProperty && pair.node.NodeClass == NodeClass.Variable,
+                        Description = pair.node.Attributes.Description
                     };
 
                     if (pair.node is UAVariable nVar)