diff --git a/config/delta-producer/public/export.json b/config/delta-producer/public/export.json
index f721ce9..a98df14 100644
--- a/config/delta-producer/public/export.json
+++ b/config/delta-producer/public/export.json
@@ -564,6 +564,31 @@
         "http://www.opengis.net/ont/geosparql#sfWithin",
         "http://www.w3.org/2004/02/skos/core#exactMatch"
       ]
+    },
+    {
+      "type": "http://www.w3.org/2004/02/skos/core#Concept",
+      "graphsFilter": [
+        "http://mu.semte.ch/graphs/public"
+      ],
+      "pathToConceptScheme": [
+        "http://www.w3.org/2004/02/skos/core#inScheme"
+      ],
+      "properties": [
+        "http://mu.semte.ch/vocabularies/core/uuid",
+        "http://www.w3.org/2004/02/skos/core#altLabel",
+        "http://www.w3.org/2004/02/skos/core#broadMatch",
+        "http://www.w3.org/2004/02/skos/core#broader",
+        "http://www.w3.org/2004/02/skos/core#exactMatch",
+        "http://www.w3.org/2004/02/skos/core#inScheme",
+        "http://www.w3.org/2004/02/skos/core#narrowMatch",
+        "http://www.w3.org/2004/02/skos/core#narrower",
+        "http://www.w3.org/2004/02/skos/core#notation",
+        "http://www.w3.org/2004/02/skos/core#prefLabel",
+        "http://www.w3.org/2004/02/skos/core#relatedMatch",
+        "http://www.w3.org/2004/02/skos/core#topConceptOf",
+        "https://schema.org/endDate",
+        "https://schema.org/startDate"
+      ]
     }
   ]
 }
diff --git a/config/migrations/2025/20250325131100-add-public-producer-concept-scheme-to-nis-codes.sparql b/config/migrations/2025/20250325131100-add-public-producer-concept-scheme-to-nis-codes.sparql
new file mode 100644
index 0000000..4a8e371
--- /dev/null
+++ b/config/migrations/2025/20250325131100-add-public-producer-concept-scheme-to-nis-codes.sparql
@@ -0,0 +1,15 @@
+INSERT  {
+   GRAPH <http://mu.semte.ch/graphs/public> {
+     ?s skos:inScheme <http://lblod.data.gift/concept-schemes/10caf4a4-1ff5-4c05-917e-56489910d68b>.
+   }
+} WHERE {
+  GRAPH <http://mu.semte.ch/graphs/public> {
+    VALUES ?nisScheme {
+      <http://vocab.belgif.be/auth/refnis2025>
+      <http://vocab.belgif.be/auth/refnis2019>
+    }
+
+    ?s a <http://www.w3.org/2004/02/skos/core#Concept> ;
+      <http://www.w3.org/2004/02/skos/core#inScheme> ?nisScheme .
+  }
+}