diff --git a/engines/dfc_provider/app/services/supplied_product_builder.rb b/engines/dfc_provider/app/services/supplied_product_builder.rb
index ff567ff52b..5ab8f2a686 100644
--- a/engines/dfc_provider/app/services/supplied_product_builder.rb
+++ b/engines/dfc_provider/app/services/supplied_product_builder.rb
@@ -10,6 +10,10 @@ class SuppliedProductBuilder < DfcBuilder
       variant.supplier_id,
       spree_product_id: variant.product_id
     )
+    product_group_id = urls.enterprise_product_group_url(
+      enterprise_id: variant.supplier_id,
+      id: variant.product_id,
+    )
 
     DfcProvider::SuppliedProduct.new(
       id,
@@ -17,6 +21,7 @@ class SuppliedProductBuilder < DfcBuilder
       description: variant.description,
       productType: product_type(variant),
       quantity: QuantitativeValueBuilder.quantity(variant),
+      isVariantOf: [product_group_id],
       spree_product_uri: product_uri,
       spree_product_id: variant.product.id,
       image_url: variant.product&.image&.url(:product)
diff --git a/engines/dfc_provider/config/routes.rb b/engines/dfc_provider/config/routes.rb
index 8fc0850729..a5b5b0ceff 100644
--- a/engines/dfc_provider/config/routes.rb
+++ b/engines/dfc_provider/config/routes.rb
@@ -6,6 +6,7 @@ DfcProvider::Engine.routes.draw do
     resources :catalog_items, only: [:index, :show, :update]
     resources :offers, only: [:show, :update]
     resources :supplied_products, only: [:create, :show, :update]
+    resources :product_groups, only: [:show]
     resources :social_medias, only: [:show]
   end
   resources :enterprise_groups, only: [:index, :show] do
diff --git a/engines/dfc_provider/spec/requests/supplied_products_spec.rb b/engines/dfc_provider/spec/requests/supplied_products_spec.rb
index cb707b3fdb..b16c6bb6e5 100644
--- a/engines/dfc_provider/spec/requests/supplied_products_spec.rb
+++ b/engines/dfc_provider/spec/requests/supplied_products_spec.rb
@@ -191,6 +191,7 @@ RSpec.describe "SuppliedProducts", type: :request, swagger_doc: "dfc.yaml", rswa
 
         run_test! do
           expect(response.body).to include variant.name
+          expect(json_response["dfc-b:isVariantOf"]).to eq "http://test.host/api/dfc/enterprises/10000/product_groups/90000"
           expect(json_response["ofn:spree_product_id"]).to eq 90_000
           expect(json_response["dfc-b:hasType"]).to eq("dfc-pt:processed-vegetable")
           expect(json_response["ofn:image"]).to include("logo-white.png")
diff --git a/swagger/dfc.yaml b/swagger/dfc.yaml
index 0724baad61..f49e7180b2 100644
--- a/swagger/dfc.yaml
+++ b/swagger/dfc.yaml
@@ -177,6 +177,7 @@ paths:
                         "@type": dfc-b:QuantitativeValue
                         dfc-b:hasUnit: dfc-m:Gram
                         dfc-b:value: 1.0
+                      dfc-b:isVariantOf: http://test.host/api/dfc/enterprises/10000/product_groups/90000
                       ofn:spree_product_id: 90000
                       ofn:spree_product_uri: http://test.host/api/dfc/enterprises/10000?spree_product_id=90000
                     - "@id": http://test.host/api/dfc/enterprises/10000/offers/10001
@@ -463,6 +464,7 @@ paths:
                         dfc-b:hasUnit: dfc-m:Gram
                         dfc-b:value: 1.0
                       dfc-b:image: http://test.host/rails/active_storage/url/logo-white.png
+                      dfc-b:isVariantOf: http://test.host/api/dfc/enterprises/10000/product_groups/90000
                       ofn:spree_product_id: 90000
                       ofn:spree_product_uri: http://test.host/api/dfc/enterprises/10000?spree_product_id=90000
                       ofn:image: http://test.host/rails/active_storage/url/logo-white.png
@@ -615,6 +617,7 @@ paths:
                       "@type": dfc-b:QuantitativeValue
                       dfc-b:hasUnit: dfc-m:Gram
                       dfc-b:value: 6.0
+                    dfc-b:isVariantOf: http://test.host/api/dfc/enterprises/10000/product_groups/90000
                     ofn:spree_product_id: 90000
                     ofn:spree_product_uri: http://test.host/api/dfc/enterprises/10000?spree_product_id=90000
                     dfc-b:image: http://test.host/rails/active_storage/url/logo-white.png
@@ -675,6 +678,7 @@ paths:
                       dfc-b:hasUnit: dfc-m:Gram
                       dfc-b:value: 1.0
                     dfc-b:image: http://test.host/rails/active_storage/url/logo-white.png
+                    dfc-b:isVariantOf: http://test.host/api/dfc/enterprises/10000/product_groups/90000
                     ofn:spree_product_id: 90000
                     ofn:spree_product_uri: http://test.host/api/dfc/enterprises/10000?spree_product_id=90000
                     ofn:image: http://test.host/rails/active_storage/url/logo-white.png