diff --git a/action/protocol/execution/evm/evm.go b/action/protocol/execution/evm/evm.go
index b907f75752..223f37ea9a 100644
--- a/action/protocol/execution/evm/evm.go
+++ b/action/protocol/execution/evm/evm.go
@@ -292,13 +292,10 @@ func ExecuteContract(
 			sharedGasFee.Mul(sharedGasFee, ps.txCtx.GasPrice)
 		}
 		totalGasFee = new(big.Int).Mul(new(big.Int).SetUint64(consumedGas), ps.txCtx.GasPrice)
-		if ps.helperCtx.DepositGasFunc != nil {
-			depositLog, err = ps.helperCtx.DepositGasFunc(ctx, sm, receiver, totalGasFee, sharedGasFee)
-			if err != nil {
-				return nil, nil, err
-			}
+		depositLog, err = ps.helperCtx.DepositGasFunc(ctx, sm, receiver, totalGasFee, sharedGasFee)
+		if err != nil {
+			return nil, nil, err
 		}
-
 	}
 
 	if err := stateDB.CommitContracts(); err != nil {
diff --git a/action/protocol/execution/protocol_test.go b/action/protocol/execution/protocol_test.go
index 45e95afdef..03230aaf7a 100644
--- a/action/protocol/execution/protocol_test.go
+++ b/action/protocol/execution/protocol_test.go
@@ -294,8 +294,9 @@ func readExecution(
 		return nil, nil, err
 	}
 	ctx = evm.WithHelperCtx(ctx, evm.HelperContext{
-		GetBlockHash: dao.GetBlockHash,
-		GetBlockTime: getBlockTimeForTest,
+		GetBlockHash:   dao.GetBlockHash,
+		GetBlockTime:   getBlockTimeForTest,
+		DepositGasFunc: rewarding.DepositGasWithSGD,
 	})
 	return sf.SimulateExecution(ctx, addr, exec)
 }
diff --git a/api/coreservice.go b/api/coreservice.go
index ee93191af8..c25604fa64 100644
--- a/api/coreservice.go
+++ b/api/coreservice.go
@@ -200,7 +200,6 @@ type (
 		readCache         *ReadCache
 		messageBatcher    *batch.Manager
 		apiStats          *nodestats.APILocalStats
-		sgdIndexer        blockindex.SGDRegistry
 		getBlockTime      evm.GetBlockTime
 	}
 
@@ -238,13 +237,6 @@ func WithAPIStats(stats *nodestats.APILocalStats) Option {
 	}
 }
 
-// WithSGDIndexer is the option to return SGD Indexer through API.
-func WithSGDIndexer(sgdIndexer blockindex.SGDRegistry) Option {
-	return func(svr *coreService) {
-		svr.sgdIndexer = sgdIndexer
-	}
-}
-
 type intrinsicGasCalculator interface {
 	IntrinsicGas() (uint64, error)
 }
@@ -1913,7 +1905,6 @@ func (core *coreService) simulateExecution(ctx context.Context, addr address.Add
 		GetBlockHash:   getBlockHash,
 		GetBlockTime:   getBlockTime,
 		DepositGasFunc: rewarding.DepositGasWithSGD,
-		Sgd:            core.sgdIndexer,
 	})
 	return core.sf.SimulateExecution(ctx, addr, exec)
 }
diff --git a/chainservice/builder.go b/chainservice/builder.go
index 6661fde001..167934821e 100644
--- a/chainservice/builder.go
+++ b/chainservice/builder.go
@@ -654,13 +654,12 @@ func (builder *Builder) registerRollDPoSProtocol() error {
 				return nil, err
 			}
 
-			// TODO: add depositGas
 			ctx = evm.WithHelperCtx(ctx, evm.HelperContext{
-				GetBlockHash: dao.GetBlockHash,
-				GetBlockTime: getBlockTime,
+				GetBlockHash:   dao.GetBlockHash,
+				GetBlockTime:   getBlockTime,
+				DepositGasFunc: rewarding.DepositGasWithSGD,
 			})
 			data, _, err := factory.SimulateExecution(ctx, addr, ex)
-
 			return data, err
 		},
 		candidatesutil.CandidatesFromDB,
diff --git a/chainservice/chainservice.go b/chainservice/chainservice.go
index c01e4df557..b1864f7626 100644
--- a/chainservice/chainservice.go
+++ b/chainservice/chainservice.go
@@ -195,7 +195,6 @@ func (cs *ChainService) NewAPIServer(cfg api.Config, plugins map[int]interface{}
 		}),
 		api.WithNativeElection(cs.electionCommittee),
 		api.WithAPIStats(cs.apiStats),
-		api.WithSGDIndexer(cs.sgdIndexer),
 	}
 
 	svr, err := api.NewServerV2(
diff --git a/e2etest/staking_test.go b/e2etest/staking_test.go
index d0bf610caa..fe9d8e05fd 100644
--- a/e2etest/staking_test.go
+++ b/e2etest/staking_test.go
@@ -24,6 +24,7 @@ import (
 	"github.com/iotexproject/iotex-core/action/protocol"
 	"github.com/iotexproject/iotex-core/action/protocol/execution/evm"
 	"github.com/iotexproject/iotex-core/action/protocol/poll"
+	"github.com/iotexproject/iotex-core/action/protocol/rewarding"
 	"github.com/iotexproject/iotex-core/blockchain/genesis"
 	"github.com/iotexproject/iotex-core/config"
 	"github.com/iotexproject/iotex-core/pkg/unit"
@@ -123,8 +124,9 @@ func TestStakingContract(t *testing.T) {
 			}
 
 			ctx = evm.WithHelperCtx(ctx, evm.HelperContext{
-				GetBlockHash: dao.GetBlockHash,
-				GetBlockTime: fakeGetBlockTime,
+				GetBlockHash:   dao.GetBlockHash,
+				GetBlockTime:   fakeGetBlockTime,
+				DepositGasFunc: rewarding.DepositGasWithSGD,
 			})
 			data, _, err := sf.SimulateExecution(ctx, addr, ex)
 
diff --git a/state/factory/factory_test.go b/state/factory/factory_test.go
index 424df5edd7..264f0f25d3 100644
--- a/state/factory/factory_test.go
+++ b/state/factory/factory_test.go
@@ -1229,6 +1229,7 @@ func testSimulateExecution(ctx context.Context, sf Factory, t *testing.T) {
 		GetBlockTime: func(u uint64) (time.Time, error) {
 			return time.Time{}, nil
 		},
+		DepositGasFunc: rewarding.DepositGasWithSGD,
 	})
 	_, _, err = sf.SimulateExecution(ctx, addr, ex)
 	require.NoError(err)