diff --git a/sidra_chain_integration/contracts/SustainableSupplyChainContract.py b/sidra_chain_integration/contracts/SustainableSupplyChainContract.py
new file mode 100644
index 000000000..11d37c3a9
--- /dev/null
+++ b/sidra_chain_integration/contracts/SustainableSupplyChainContract.py
@@ -0,0 +1,39 @@
+from typing import Dict
+
+class SustainableSupplyChainContract:
+    def __init__(self):
+        self.suppliers: Dict[str, Dict[str, str]] = {}
+        self.products: Dict[str, Dict[str, str]] = {}
+
+    def register_supplier(self, supplier_id: str, name: str, location: str):
+        # Register a new supplier
+        self.suppliers[supplier_id] = {
+            "name": name,
+            "location": location,
+            "products": []
+        }
+
+    def add_product(self, supplier_id: str, product_id: str, product_name: str):
+        # Add a product to a supplier
+        if supplier_id not in self.suppliers:
+            raise ValueError("Supplier not found")
+        self.suppliers[supplier_id]["products"].append(product_id)
+        self.products[product_id] = {
+            "supplier_id": supplier_id,
+            "product_name": product_name,
+            "sustainability_certifications": []
+        }
+
+    def add_sustainability_certification(self, product_id: str, certification: str):
+        # Add a sustainability certification to a product
+        if product_id not in self.products:
+            raise ValueError("Product not found")
+        self.products[product_id]["sustainability_certifications"].append(certification)
+
+    def get_supplier_info(self, supplier_id: str):
+        # Get the information of a supplier
+        return self.suppliers.get(supplier_id, {})
+
+    def get_product_info(self, product_id: str):
+        # Get the information of a product
+        return self.products.get(product_id, {})