diff --git a/substrate/primitives/core/src/crypto.rs b/substrate/primitives/core/src/crypto.rs
index 6a07e3ce40..f2101a6712 100644
--- a/substrate/primitives/core/src/crypto.rs
+++ b/substrate/primitives/core/src/crypto.rs
@@ -506,6 +506,10 @@ ss58_address_format!(
 		(36, "centrifuge", "Centrifuge Chain mainnet, standard account (*25519).")
 	NodleAccount =>
 		(37, "nodle", "Nodle Chain mainnet, standard account (*25519).")
+	KiltAccount =>
+		(38, "kilt", "KILT Chain mainnet, standard account (*25519).")
+	PolimecAccount =>
+		(41, "poli", "Polimec Chain mainnet, standard account (*25519).")
 	SubstrateAccount =>
 		(42, "substrate", "Any Substrate network, standard account (*25519).")
 	Reserved43 =>
diff --git a/substrate/ss58-registry.json b/substrate/ss58-registry.json
index 8c7110060b..5c90856505 100644
--- a/substrate/ss58-registry.json
+++ b/substrate/ss58-registry.json
@@ -298,6 +298,15 @@
 			"standardAccount": "*25519",
 			"website": "https://nodle.io/"
 		},
+		{
+			"prefix": 38,
+			"network": "kilt",
+			"displayName": "KILT Chain",
+			"symbols": ["KILT"],
+			"decimals": [18],
+			"standardAccount": "*25519",
+			"website": "https://kilt.io/"
+		},
 		{
 			"prefix": 39,
 			"network": "mathchain",
@@ -316,6 +325,15 @@
 			"standardAccount": "*25519",
 			"website": "https://mathwallet.org"
 		},
+		{
+			"prefix": 41,
+			"network": "poli",
+			"displayName": "Polimec Chain",
+			"symbols": null,
+			"decimals": null,
+			"standardAccount": "*25519",
+			"website": "https://polimec.io/"
+		},
 		{
 			"prefix": 42,
 			"network": "substrate",