diff --git a/lib/eth/chain.rb b/lib/eth/chain.rb
index 7243bcb0..a591b089 100644
--- a/lib/eth/chain.rb
+++ b/lib/eth/chain.rb
@@ -32,6 +32,15 @@ class ReplayProtectionError < StandardError; end
     # Chain ID for Optimistic Ethereum mainnet.
     OPTIMISM = 10.freeze
 
+    # Chain ID for Cronos mainnet.
+    CRONOS = 25.freeze
+
+    # Chain ID for Rootstock mainnet.
+    RSK = 30.freeze
+
+    # Chain ID for BNB Smart Chain mainnet.
+    BNB = 56.freeze
+
     # Chain ID for Ethereum Classic mainnet.
     CLASSIC = 61.freeze
 
@@ -50,9 +59,24 @@ class ReplayProtectionError < StandardError; end
     # Chain ID for the Polygon mainnet (formerly Matic).
     POLYGON = MATIC.freeze
 
-    # Chain ID for Arbitrum mainnet.
+    # Chain ID for Filecoin mainnet.
+    FILECOIN = 314.freeze
+
+    # Chain ID for Moonbeam
+    MOONBEAM = 1284.freeze
+
+    # Chain ID for Base mainnet.
+    BASE = 8453.freeze
+
+    # Chain ID for Arbitrum One mainnet.
     ARBITRUM = 42161.freeze
 
+    # Chain ID for Avalance C-Chain mainnet.
+    AVALANCHE = 43114.freeze
+
+    # Chain ID for Linea mainnet.
+    LINEA = 59144.freeze
+
     # Chain ID for Morden (Ethereum) testnet.
     MORDEN = 2.freeze
 
@@ -77,7 +101,7 @@ class ReplayProtectionError < StandardError; end
     # Chain ID for Mordor testnet.
     MORDOR = 63.freeze
 
-    # Chain ID for Optimistik Kovan testnet.
+    # Chain ID for Optimistm Kovan testnet.
     KOVAN_OPTIMISM = 69.freeze
 
     # Chain ID for Arbitrum xDAI testnet.
@@ -86,6 +110,12 @@ class ReplayProtectionError < StandardError; end
     # Chain ID for Optimistic Goerli testnet.
     GOERLI_OPTIMISM = 420.freeze
 
+    # Chain ID for Moonriver testnet
+    MOONRIVER = 1285.freeze
+
+    # Chain ID for Moonbase alpha
+    MOONBASE = 1287.freeze
+
     # Chain ID for the Polygon Mumbai testnet.
     MUMBAI = 80001.freeze
 
@@ -104,15 +134,6 @@ class ReplayProtectionError < StandardError; end
     # Chain ID for the geth private network preset.
     PRIVATE_GETH = 1337.freeze
 
-    # Chain ID for Moonbase
-    MOONBASE = 1287.freeze
-
-    # Chain ID for Moonriver
-    MOONRIVER = 1285.freeze
-
-    # Chain ID for Moonbeam
-    MOONBEAM = 1284.freeze
-
     # Indicates wether the given `v` indicates a legacy chain value
     # used by ledger wallets without EIP-155 replay protection.
     #
diff --git a/spec/eth/chain_spec.rb b/spec/eth/chain_spec.rb
index 997e596b..683ba57a 100644
--- a/spec/eth/chain_spec.rb
+++ b/spec/eth/chain_spec.rb
@@ -8,13 +8,20 @@
       expect(Chain::EXPANSE).to eq 2
       expect(Chain::OPTIMISM).to eq 10
       expect(Chain::CLASSIC).to eq 61
+      expect(Chain::CRONOS).to eq 25
+      expect(Chain::RSK).to eq 30
+      expect(Chain::BNB).to eq 56
       expect(Chain::POA_NET).to eq 99
       expect(Chain::XDAI).to eq 100
       expect(Chain::GNOSIS).to eq 100
       expect(Chain::MATIC).to eq 137
       expect(Chain::POLYGON).to eq 137
-      expect(Chain::ARBITRUM).to eq 42161
+      expect(Chain::FILECOIN).to eq 314
       expect(Chain::MOONBEAM).to eq 1284
+      expect(Chain::BASE).to eq 8453
+      expect(Chain::ARBITRUM).to eq 42161
+      expect(Chain::AVALANCHE).to eq 43114
+      expect(Chain::LINEA).to eq 59144
 
       # Chain IDs for selected testnets
       expect(Chain::MORDEN).to eq 2
@@ -28,15 +35,14 @@
       expect(Chain::KOVAN_OPTIMISM).to eq 69
       expect(Chain::XDAI_ARBITRUM).to eq 200
       expect(Chain::GOERLI_OPTIMISM).to eq 420
+      expect(Chain::MOONRIVER).to eq 1285
+      expect(Chain::MOONBASE).to eq 1287
       expect(Chain::MUMBAI).to eq 80001
       expect(Chain::RINKEBY_ARBITRUM).to eq 421611
       expect(Chain::GOERLI_ARBITRUM).to eq 421613
       expect(Chain::SEPOLIA).to eq 11155111
       expect(Chain::HOLESOVICE).to eq 11166111
 
-      expect(Chain::MOONRIVER).to eq 1285
-      expect(Chain::MOONBASE).to eq 1287
-
       # Chain IDs for selected private networks
       expect(Chain::PRIVATE_GETH).to eq 1337
     end