diff --git a/src/factories/NFTFactory.ts b/src/factories/NFTFactory.ts
index d01b207e..c0c28402 100644
--- a/src/factories/NFTFactory.ts
+++ b/src/factories/NFTFactory.ts
@@ -11,7 +11,8 @@ import {
   getErcCreationParams,
   getPoolCreationParams,
   configHelperNetworks,
-  setContractDefaults
+  setContractDefaults,
+  ZERO_ADDRESS
 } from '../utils'
 import { Config } from '../models/index.js'
 import {
@@ -45,7 +46,6 @@ export interface NftCreateData {
   owner: string
 }
 
-const addressZERO = '0x0000000000000000000000000000000000000000'
 /**
  * Provides an interface for NFT Factory contract
  */
@@ -94,8 +94,8 @@ export class NftFactory {
           nftData.name,
           nftData.symbol,
           nftData.templateIndex,
-          addressZERO,
-          addressZERO,
+          ZERO_ADDRESS,
+          ZERO_ADDRESS,
           nftData.tokenURI,
           nftData.transferable,
           nftData.owner
@@ -139,8 +139,8 @@ export class NftFactory {
         nftData.name,
         nftData.symbol,
         nftData.templateIndex,
-        addressZERO,
-        addressZERO,
+        ZERO_ADDRESS,
+        ZERO_ADDRESS,
         nftData.tokenURI,
         nftData.transferable,
         nftData.owner
@@ -278,7 +278,7 @@ export class NftFactory {
     if ((await this.getOwner()) !== address) {
       throw new Error(`Caller is not Factory Owner`)
     }
-    if (templateAddress === addressZERO) {
+    if (templateAddress === ZERO_ADDRESS) {
       throw new Error(`Template cannot be ZERO address`)
     }
 
@@ -445,7 +445,7 @@ export class NftFactory {
     if ((await this.getOwner()) !== address) {
       throw new Error(`Caller is not Factory Owner`)
     }
-    if (templateAddress === addressZERO) {
+    if (templateAddress === ZERO_ADDRESS) {
       throw new Error(`Template cannot be address ZERO`)
     }
 
diff --git a/src/pools/fixedRate/FixedRateExchange.ts b/src/pools/fixedRate/FixedRateExchange.ts
index 5104789c..90e2bab9 100644
--- a/src/pools/fixedRate/FixedRateExchange.ts
+++ b/src/pools/fixedRate/FixedRateExchange.ts
@@ -9,7 +9,8 @@ import {
   configHelperNetworks,
   setContractDefaults,
   amountToUnits,
-  unitsToAmount
+  unitsToAmount,
+  ZERO_ADDRESS
 } from '../../utils'
 import { Config } from '../../models/index.js'
 import { PriceAndFees } from '../..'
@@ -164,7 +165,7 @@ export class FixedRateExchange {
     exchangeId: string,
     datatokenAmount: string,
     maxBaseTokenAmount: string,
-    consumeMarketAddress: string = '0x0000000000000000000000000000000000000000',
+    consumeMarketAddress: string = ZERO_ADDRESS,
     consumeMarketFee: string = '0'
   ): Promise<TransactionReceipt> {
     const exchange = await this.getExchange(exchangeId)
@@ -260,7 +261,7 @@ export class FixedRateExchange {
     exchangeId: string,
     datatokenAmount: string,
     minBaseTokenAmount: string,
-    consumeMarketAddress: string = '0x0000000000000000000000000000000000000000',
+    consumeMarketAddress: string = ZERO_ADDRESS,
     consumeMarketFee: string = '0'
   ): Promise<TransactionReceipt> {
     const exchange = await this.getExchange(exchangeId)
diff --git a/src/tokens/Datatoken.ts b/src/tokens/Datatoken.ts
index b63e911c..4b0e9aed 100644
--- a/src/tokens/Datatoken.ts
+++ b/src/tokens/Datatoken.ts
@@ -10,7 +10,8 @@ import {
   getFairGasPrice,
   setContractDefaults,
   configHelperNetworks,
-  getFreOrderParams
+  getFreOrderParams,
+  ZERO_ADDRESS
 } from '../utils'
 import {
   ConsumeMarketFee,
@@ -206,8 +207,7 @@ export class Datatoken {
 
     const gasLimitDefault = this.GASLIMIT_DEFAULT
 
-    if (!fixedRateParams.allowedConsumer)
-      fixedRateParams.allowedConsumer = '0x0000000000000000000000000000000000000000'
+    if (!fixedRateParams.allowedConsumer) fixedRateParams.allowedConsumer = ZERO_ADDRESS
     const withMint = fixedRateParams.withMint ? 1 : 0
 
     let estGas
@@ -257,8 +257,7 @@ export class Datatoken {
     if (!(await this.isERC20Deployer(dtAddress, address))) {
       throw new Error(`User is not ERC20 Deployer`)
     }
-    if (!fixedRateParams.allowedConsumer)
-      fixedRateParams.allowedConsumer = '0x0000000000000000000000000000000000000000'
+    if (!fixedRateParams.allowedConsumer) fixedRateParams.allowedConsumer = ZERO_ADDRESS
 
     const withMint = fixedRateParams.withMint ? 1 : 0
 
@@ -320,8 +319,7 @@ export class Datatoken {
         this.config
       )
 
-    if (!dispenserParams.allowedSwapper)
-      dispenserParams.allowedSwapper = '0x0000000000000000000000000000000000000000'
+    if (!dispenserParams.allowedSwapper) dispenserParams.allowedSwapper = ZERO_ADDRESS
 
     if (!dispenserParams.withMint) dispenserParams.withMint = false
 
@@ -367,8 +365,7 @@ export class Datatoken {
       this.config
     )
 
-    if (!dispenserParams.allowedSwapper)
-      dispenserParams.allowedSwapper = '0x0000000000000000000000000000000000000000'
+    if (!dispenserParams.allowedSwapper) dispenserParams.allowedSwapper = ZERO_ADDRESS
 
     if (!dispenserParams.withMint) dispenserParams.withMint = false
 
@@ -975,8 +972,8 @@ export class Datatoken {
     )
     if (!consumeMarketFee) {
       consumeMarketFee = {
-        consumeMarketFeeAddress: '0x0000000000000000000000000000000000000000',
-        consumeMarketFeeToken: '0x0000000000000000000000000000000000000000',
+        consumeMarketFeeAddress: ZERO_ADDRESS,
+        consumeMarketFeeToken: ZERO_ADDRESS,
         consumeMarketFeeAmount: '0'
       }
     }
diff --git a/src/utils/ContractUtils.ts b/src/utils/ContractUtils.ts
index 139791dd..827cd13d 100644
--- a/src/utils/ContractUtils.ts
+++ b/src/utils/ContractUtils.ts
@@ -11,6 +11,7 @@ import {
 import { Config } from '../models'
 import { minAbi } from './minAbi'
 import LoggerInstance from './Logger'
+import { ZERO_ADDRESS } from './Constants'
 
 export function setContractDefaults(contract: Contract, config: Config): Contract {
   if (config) {
@@ -65,8 +66,7 @@ export function getFreOrderParams(freParams: FreOrderParams): any {
 }
 
 export function getFreCreationParams(freParams: FreCreationParams): any {
-  if (!freParams.allowedConsumer)
-    freParams.allowedConsumer = '0x0000000000000000000000000000000000000000'
+  if (!freParams.allowedConsumer) freParams.allowedConsumer = ZERO_ADDRESS
   const withMint = freParams.withMint ? 1 : 0
 
   return {