diff --git a/app/tasks/maintenance/populate_rna_json_value_task.rb b/app/tasks/maintenance/populate_rna_json_value_task.rb
new file mode 100644
index 000000000..b809f9345
--- /dev/null
+++ b/app/tasks/maintenance/populate_rna_json_value_task.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class PopulateRNAJSONValueTask < MaintenanceTasks::Task
+    def collection
+      Champs::RNAChamp.where.not(value: nil)
+    end
+
+    def process(champ)
+      return if champ&.dossier&.procedure&.id.blank?
+      data = APIEntreprise::RNAAdapter.new(champ.value, champ&.dossier&.procedure&.id).to_params
+      return if data.blank?
+      champ.update(value_json: APIGeoService.parse_rna_address(data['adresse']))
+    end
+
+    def count
+      # not really interested in counting because it raises PG Statement timeout
+    end
+  end
+end
diff --git a/spec/tasks/maintenance/populate_rna_json_value_task_spec.rb b/spec/tasks/maintenance/populate_rna_json_value_task_spec.rb
new file mode 100644
index 000000000..9103b9a95
--- /dev/null
+++ b/spec/tasks/maintenance/populate_rna_json_value_task_spec.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+module Maintenance
+  RSpec.describe PopulateRNAJSONValueTask do
+    describe "#process" do
+      let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :rna }]) }
+      let(:dossier) { create(:dossier, :with_populated_champs, procedure:) }
+      let(:element) { dossier.champs.first }
+      subject(:process) { described_class.process(element) }
+
+      let(:body) { File.read('spec/fixtures/files/api_entreprise/associations.json') }
+      let(:status) { 200 }
+
+      before do
+        stub_request(:get, /https:\/\/entreprise.api.gouv.fr\/v4\/djepva\/api-association\/associations\/open_data\/#{element.value}/)
+          .to_return(body: body, status: status)
+        allow_any_instance_of(APIEntrepriseToken).to receive(:expired?).and_return(false)
+      end
+      it 'updates value_json' do
+        expect { subject }.to change { element.reload.value_json }
+          .from(nil)
+          .to({
+            "street_number" => "33",
+            "street_name" => "de Modagor",
+            "street_address" => "33 rue de Modagor",
+            "postal_code" => "75009",
+            "city_name" => "Paris",
+            "city_code" => "75108",
+            "departement_code" => nil,
+            "departement_name" => nil,
+            "region_code" => nil,
+            "region_name" => nil
+          })
+      end
+    end
+  end
+end