diff --git a/core/chains/evm/config/toml/defaults/Hashkey_Testnet.toml b/core/chains/evm/config/toml/defaults/Hashkey_Testnet.toml
new file mode 100644
index 00000000000..4b068f83786
--- /dev/null
+++ b/core/chains/evm/config/toml/defaults/Hashkey_Testnet.toml
@@ -0,0 +1,18 @@
+ChainID = '133'
+FinalityTagEnabled = true
+MinContractPayment = '0.1 link'
+LogBroadcasterEnabled = false
+NewHeadsPollInterval = '8s'
+
+[GasEstimator]
+EIP1559DynamicFees = true
+
+[GasEstimator.BlockHistory]
+BlockHistorySize = 4
+TransactionPercentile = 50
+
+[OCR2.Automation]
+GasLimit = 10500000
+
+[HeadTracker]
+FinalityTagBypass = false