diff --git a/api/service/staking/service.go b/api/service/staking/service.go
index 42acd142d..b6cc132ea 100644
--- a/api/service/staking/service.go
+++ b/api/service/staking/service.go
@@ -19,9 +19,9 @@ import (
 	proto_common "github.com/harmony-one/harmony/api/proto"
 	"github.com/harmony-one/harmony/api/proto/message"
 	msg_pb "github.com/harmony-one/harmony/api/proto/message"
+	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/contracts"
 	"github.com/harmony-one/harmony/core"
-	"github.com/harmony-one/harmony/core/denominations"
 	"github.com/harmony-one/harmony/core/types"
 	hmykey "github.com/harmony-one/harmony/internal/keystore"
 	"github.com/harmony-one/harmony/internal/utils"
diff --git a/cmd/client/txgen/main.go b/cmd/client/txgen/main.go
index 296be5666..575257339 100644
--- a/cmd/client/txgen/main.go
+++ b/cmd/client/txgen/main.go
@@ -22,7 +22,7 @@ import (
 
 	"github.com/harmony-one/harmony/api/client"
 	proto_node "github.com/harmony-one/harmony/api/proto/node"
-	"github.com/harmony-one/harmony/core/denominations"
+	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/core/types"
 	"github.com/harmony-one/harmony/crypto/bls"
 	nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
diff --git a/common/denominations/denominations.go b/common/denominations/denominations.go
new file mode 100644
index 000000000..37f2557c0
--- /dev/null
+++ b/common/denominations/denominations.go
@@ -0,0 +1,8 @@
+package denominations
+
+//ONE Units
+const (
+	Wei  = 1
+	GWei = 1e9
+	One  = 1e18
+)
diff --git a/consensus/consensus.go b/consensus/consensus.go
index 06d0d10e4..18ceb8fd0 100644
--- a/consensus/consensus.go
+++ b/consensus/consensus.go
@@ -9,9 +9,9 @@ import (
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/harmony-one/bls/ffi/go/bls"
+	"github.com/harmony-one/harmony/common/denominations"
 	consensus_engine "github.com/harmony-one/harmony/consensus/engine"
 	"github.com/harmony-one/harmony/contracts/structs"
-	"github.com/harmony-one/harmony/core/denominations"
 	"github.com/harmony-one/harmony/core/state"
 	"github.com/harmony-one/harmony/core/types"
 	bls_cosi "github.com/harmony-one/harmony/crypto/bls"
diff --git a/core/tx_pool_test.go b/core/tx_pool_test.go
index 48b2ae684..c0583791b 100644
--- a/core/tx_pool_test.go
+++ b/core/tx_pool_test.go
@@ -31,7 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/params"
-	"github.com/harmony-one/harmony/core/denominations"
+	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/core/state"
 	"github.com/harmony-one/harmony/core/types"
 )
diff --git a/node/contract.go b/node/contract.go
index 9aad8813d..c371b40f1 100644
--- a/node/contract.go
+++ b/node/contract.go
@@ -12,9 +12,9 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/params"
+	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/contracts"
 	"github.com/harmony-one/harmony/contracts/structs"
-	"github.com/harmony-one/harmony/core/denominations"
 	"github.com/harmony-one/harmony/core/types"
 	"github.com/harmony-one/harmony/internal/utils"
 	contract_constants "github.com/harmony-one/harmony/internal/utils/contract"
diff --git a/node/node_genesis.go b/node/node_genesis.go
index 4735bd57d..4f54ff2df 100644
--- a/node/node_genesis.go
+++ b/node/node_genesis.go
@@ -12,8 +12,8 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/pkg/errors"
 
+	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/core"
-	"github.com/harmony-one/harmony/core/denominations"
 	"github.com/harmony-one/harmony/core/rawdb"
 	"github.com/harmony-one/harmony/core/types"
 	"github.com/harmony-one/harmony/internal/ctxerror"
diff --git a/node/worker/worker_test.go b/node/worker/worker_test.go
index b01baca19..d714c297c 100644
--- a/node/worker/worker_test.go
+++ b/node/worker/worker_test.go
@@ -8,9 +8,9 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
+	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/consensus"
 	"github.com/harmony-one/harmony/core"
-	"github.com/harmony-one/harmony/core/denominations"
 	"github.com/harmony-one/harmony/core/types"
 	"github.com/harmony-one/harmony/core/vm"
 )