diff --git a/OpenAPI/TS28541_5GcNrm.yaml b/OpenAPI/TS28541_5GcNrm.yaml
index 5a9f749f1aa4804138fc975df15cbe249fe6e6e0..35530d8ed8a3cb8db263915ad50c7a945d8436f6 100755
--- a/OpenAPI/TS28541_5GcNrm.yaml
+++ b/OpenAPI/TS28541_5GcNrm.yaml
@@ -764,6 +764,32 @@ components:
         fqdn:
           $ref: 'TS28623_ComDefs.yaml#/components/schemas/Fqdn'
 
+    SeppInfo:
+      description: Information of a SEPP Instance
+      type: object
+      properties:
+        seppPrefix:
+          type: string
+        seppPorts:
+          description: >
+            Port numbers for HTTP and HTTPS. The key of the map shall be "http" or "https".
+          type: object
+          additionalProperties:
+            type: integer
+            minimum: 0
+            maximum: 65535
+          minProperties: 1
+        remotePlmnList:
+          type: array
+          items:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/PlmnId'
+          minItems: 1
+        remoteSnpnList:
+          type: array
+          items:
+            $ref: 'TS29571_CommonData.yaml#/components/schemas/PlmnIdNid'
+          minItems: 1
+
 #-------- Definition of concrete IOCs --------------------------------------------
     ProvMnS:
       oneOf:
@@ -1476,6 +1502,8 @@ components:
                       type: integer
                     fqdn:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Fqdn'
+                    seppInfo:
+                      $ref: '#/components/schemas/SeppInfo'
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
         - type: object
           properties: