diff --git a/contracts/gateway/EIP20CoGateway.sol b/contracts/gateway/EIP20CoGateway.sol
index 3d18d2d4..1db7ab58 100644
--- a/contracts/gateway/EIP20CoGateway.sol
+++ b/contracts/gateway/EIP20CoGateway.sol
@@ -286,7 +286,7 @@ contract EIP20CoGateway is GatewayBase {
 
         require(
             _messageHash != bytes32(0),
-            "Message hash must not be zero"
+            "Message hash must not be zero."
         );
 
         MessageBus.Message storage message = messages[_messageHash];
@@ -303,7 +303,7 @@ contract EIP20CoGateway is GatewayBase {
         stakeAmount_,
         mintedAmount_,
         rewardAmount_) =
-        progressMintInternal(_messageHash, initialGas, true, bytes32(0));
+        progressMintInternal(_messageHash, initialGas, false, _unlockSecret);
     }
 
     /**
@@ -745,6 +745,7 @@ contract EIP20CoGateway is GatewayBase {
         );
     }
 
+
     /* Public functions */
 
     /**
@@ -1060,6 +1061,7 @@ contract EIP20CoGateway is GatewayBase {
 
     /**
      * @notice This is internal method for process minting contains common logic.
+     *         It doesn't mint reward if reward is 0.
      *
      * @param _messageHash Message hash.
      * @param _initialGas Initial gas during progress process.
@@ -1078,7 +1080,6 @@ contract EIP20CoGateway is GatewayBase {
      *                        from the total amount.
      * @return rewardAmount_ Reward amount that is transferred to facilitator.
      */
-
     function progressMintInternal(
         bytes32 _messageHash,
         uint256 _initialGas,
@@ -1116,11 +1117,13 @@ contract EIP20CoGateway is GatewayBase {
             mintedAmount_
         );
 
-        // Reward beneficiary with the reward amount.
-        UtilityTokenInterface(utilityToken).increaseSupply(
-            msg.sender,
-            rewardAmount_
-        );
+        if(rewardAmount_ > 0) {
+            // Reward beneficiary with the reward amount.
+            UtilityTokenInterface(utilityToken).increaseSupply(
+                msg.sender,
+                rewardAmount_
+            );
+        }
 
         // Delete the mint data.
         delete mints[_messageHash];
diff --git a/contracts/gateway/EIP20Gateway.sol b/contracts/gateway/EIP20Gateway.sol
index 1ea4bde9..3db2419b 100644
--- a/contracts/gateway/EIP20Gateway.sol
+++ b/contracts/gateway/EIP20Gateway.sol
@@ -892,6 +892,9 @@ contract EIP20Gateway is GatewayBase {
         progressUnstakeInternal(_messageHash, initialGas, bytes32(0), true);
     }
 
+
+    /** External methods */
+
     /**
      * @notice Declare redeem revert intent.
      *         This will set message status to revoked. This method will also
diff --git a/contracts/gateway/UtilityTokenInterface.sol b/contracts/gateway/UtilityTokenInterface.sol
index fb0a727c..a7559965 100644
--- a/contracts/gateway/UtilityTokenInterface.sol
+++ b/contracts/gateway/UtilityTokenInterface.sol
@@ -61,4 +61,17 @@ contract UtilityTokenInterface {
      */
     function decreaseSupply(uint256 _amount) external returns (bool success_);
 
+    /**
+     * @notice Sets the CoGateway contract address.
+     *
+     * @dev Function requires:
+     *          - It is called by whitelisted workers.
+     *          - coGateway address is set only once.
+     *          - coGateway.utilityToken must match this contract.
+     *
+     * @param _coGateway CoGateway contract address.
+     *
+     */
+    function setCoGateway(address _coGateway) external returns (bool);
+
 }
diff --git a/contracts/test/TestEIP20CoGateway.sol b/contracts/test/TestEIP20CoGateway.sol
index 27999e40..4e0a4a75 100644
--- a/contracts/test/TestEIP20CoGateway.sol
+++ b/contracts/test/TestEIP20CoGateway.sol
@@ -70,7 +70,7 @@ contract TestEIP20CoGateway is EIP20CoGateway {
     /* Public Functions */
 
     /**
-     * @notice It is used to set the message.
+     * @notice It is used to set the stake message.
      *
      * @dev This is used for testing purpose.
      *
diff --git a/contracts/test/TestEIP20Gateway.sol b/contracts/test/TestEIP20Gateway.sol
index bd4132c8..bf3eca7b 100644
--- a/contracts/test/TestEIP20Gateway.sol
+++ b/contracts/test/TestEIP20Gateway.sol
@@ -48,7 +48,7 @@ contract TestEIP20Gateway is EIP20Gateway {
         StateRootInterface _core,
         uint256 _bounty,
         IsMemberInterface _membersManager,
-        address _burner
+        address payable _burner
     )
         EIP20Gateway(
             _token,
diff --git a/contracts/test/gateway/MockUtilityToken.sol b/contracts/test/gateway/MockUtilityToken.sol
new file mode 100644
index 00000000..638fc956
--- /dev/null
+++ b/contracts/test/gateway/MockUtilityToken.sol
@@ -0,0 +1,66 @@
+pragma solidity ^0.5.0;
+
+// Copyright 2018 OpenST Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// ----------------------------------------------------------------------------
+//
+// http://www.simpletoken.org/
+//
+// ----------------------------------------------------------------------------
+
+import "../../gateway/UtilityToken.sol";
+
+/**
+ * @title MockUtilityToken contract.
+ *
+ * @notice This contract is used to mock certain functions of UtilityToken
+ *         contract.
+ */
+contract MockUtilityToken is UtilityToken {
+
+    /* Constructor */
+
+    /**
+     * @notice Constructor.
+     *
+     * @dev This is used for testing only.
+     *
+     * @param _token Address of branded token.
+     * @param _symbol Symbol of token.
+     * @param _name Name of token.
+     * @param _decimals Decimal of token.
+     * @param _membersManager Address of a contract that manages organization.
+     */
+    constructor(
+        EIP20Interface _token,
+        string memory _symbol,
+        string memory _name,
+        uint8 _decimals,
+        IsMemberInterface _membersManager
+    )
+        public
+        UtilityToken(_token, _symbol, _name, _decimals, _membersManager)
+    {}
+
+    /**
+     * @notice Set the CoGateway address for testing.
+     *
+     * @param _coGatewayAddress CoGateway address.
+     */
+    function setCoGatewayAddress(address _coGatewayAddress) external {
+        coGateway = _coGatewayAddress;
+    }
+
+}
diff --git a/contracts/test/gateway/TestUtilityToken.sol b/contracts/test/gateway/TestUtilityToken.sol
index f20b7c41..9c765339 100644
--- a/contracts/test/gateway/TestUtilityToken.sol
+++ b/contracts/test/gateway/TestUtilityToken.sol
@@ -29,16 +29,17 @@ import "../../gateway/UtilityToken.sol";
  *         contract.
  */
 contract TestUtilityToken is UtilityToken {
-    
+
     /* Constructor */
 
     /**
      * @dev This is used for testing by mocking certain variables.
      *
      * @param _token Address of branded token.
-     * @param _symbol Symbol of token
-     * @param _name Name of token
-     * @param _decimals Decimal of token
+     * @param _symbol Symbol of token.
+     * @param _name Name of token.
+     * @param _decimals Decimal of token.
+     * @param _membersManager Address of a contract that manages organization.
      */
     constructor(
         EIP20Interface _token,
diff --git a/package-lock.json b/package-lock.json
index 78747663..47879c26 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@types/node": {
-      "version": "10.10.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.10.3.tgz",
-      "integrity": "sha512-dWk7F3b0m6uDLHero7tsnpAi9r2RGPQHGbb0/VCv7DPJRMFtk3RonY1/29vfJKnheRMBa7+uF+vunlg/mBGlxg==",
+      "version": "10.12.15",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.15.tgz",
+      "integrity": "sha512-9kROxduaN98QghwwHmxXO2Xz3MaWf+I1sLVAA6KJDF5xix+IyXVhds0MAfdNwtcpSrzhaTsNB0/jnL86fgUhqA==",
       "dev": true
     },
     "abbrev": {
@@ -46,7 +46,7 @@
       "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "dev": true,
       "requires": {
-        "mime-types": "2.1.20",
+        "mime-types": "2.1.21",
         "negotiator": "0.6.1"
       }
     },
@@ -57,15 +57,15 @@
       "dev": true
     },
     "ajv": {
-      "version": "5.5.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
-      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "version": "6.6.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.6.2.tgz",
+      "integrity": "sha512-FBHEW6Jf5TB9MGBgUUA9XHkTbjXYfAUjY43ACMfmdMRHniyoMHjHjzD50OK8LGDWQwp4rWEsIq5kEqq7rvIM1g==",
       "dev": true,
       "requires": {
-        "co": "4.6.0",
-        "fast-deep-equal": "1.1.0",
+        "fast-deep-equal": "2.0.1",
         "fast-json-stable-stringify": "2.0.0",
-        "json-schema-traverse": "0.3.1"
+        "json-schema-traverse": "0.4.1",
+        "uri-js": "4.2.2"
       }
     },
     "amdefine": {
@@ -184,7 +184,6 @@
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
       "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
       "dev": true,
-      "optional": true,
       "requires": {
         "tweetnacl": "0.14.5"
       }
@@ -194,9 +193,9 @@
       "dev": true
     },
     "bindings": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.3.0.tgz",
-      "integrity": "sha512-DpLh5EzMR2kzvX1KIlVC0VkC3iZtHKTgdtZ0a3pglBZdaQFjt5S9g9xd1lE+YvXyfd6mtCeRnrUfOLYiTMlNSw==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.3.1.tgz",
+      "integrity": "sha512-i47mqjF9UbjxJhxGf+pZ6kSxrnI3wBLlnGI2ArWJ4r0VrvDS7ZYXkprq/pLaBWYq4GM0r4zdHY+NNRqEMU7uew==",
       "dev": true
     },
     "bl": {
@@ -219,9 +218,9 @@
       }
     },
     "bluebird": {
-      "version": "3.5.2",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.2.tgz",
-      "integrity": "sha512-dhHTWMI7kMx5whMQntl7Vr9C6BvV10lFXDAasnqnrMYhXVCzzk6IO9Fo2L75jXHT07WrOngL1WDXOp+yYS91Yg==",
+      "version": "3.5.3",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
+      "integrity": "sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw==",
       "dev": true
     },
     "bn.js": {
@@ -453,12 +452,6 @@
         "wrap-ansi": "2.1.0"
       }
     },
-    "co": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
-      "dev": true
-    },
     "code-point-at": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
@@ -474,6 +467,12 @@
         "delayed-stream": "1.0.0"
       }
     },
+    "command-exists": {
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/command-exists/-/command-exists-1.2.8.tgz",
+      "integrity": "sha512-PM54PkseWbiiD/mMsbvW351/u+dafwTJ0ye2qB60G1aGQP9j3xK2gmMDc+R34L3nDtx4qMCitXT75mkbkGJDLw==",
+      "dev": true
+    },
     "commander": {
       "version": "2.17.1",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
@@ -488,7 +487,7 @@
     },
     "content-disposition": {
       "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
+      "resolved": "http://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
       "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ=",
       "dev": true
     },
@@ -523,9 +522,9 @@
       "dev": true
     },
     "cors": {
-      "version": "2.8.4",
-      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.4.tgz",
-      "integrity": "sha1-K9OB8usgECAQXNUOpZ2mMJBpRoY=",
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
       "dev": true,
       "requires": {
         "object-assign": "4.1.1",
@@ -550,7 +549,7 @@
       "requires": {
         "cipher-base": "1.0.4",
         "inherits": "2.0.1",
-        "md5.js": "1.3.4",
+        "md5.js": "1.3.5",
         "ripemd160": "2.0.2",
         "sha.js": "2.4.11"
       }
@@ -575,7 +574,7 @@
       "integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
       "dev": true,
       "requires": {
-        "lru-cache": "4.1.3",
+        "lru-cache": "4.1.5",
         "shebang-command": "1.2.0",
         "which": "1.3.1"
       }
@@ -593,8 +592,8 @@
         "create-hmac": "1.1.7",
         "diffie-hellman": "5.0.3",
         "inherits": "2.0.1",
-        "pbkdf2": "3.0.16",
-        "public-encrypt": "4.0.2",
+        "pbkdf2": "3.0.17",
+        "public-encrypt": "4.0.3",
         "randombytes": "2.0.6",
         "randomfill": "1.0.4"
       }
@@ -651,7 +650,7 @@
         "decompress-tarbz2": "4.1.1",
         "decompress-targz": "4.1.1",
         "decompress-unzip": "4.0.1",
-        "graceful-fs": "4.1.11",
+        "graceful-fs": "4.1.15",
         "make-dir": "1.3.0",
         "pify": "2.3.0",
         "strip-dirs": "2.1.0"
@@ -687,7 +686,7 @@
         "file-type": "6.2.0",
         "is-stream": "1.1.0",
         "seek-bzip": "1.0.5",
-        "unbzip2-stream": "1.3.0"
+        "unbzip2-stream": "1.3.1"
       },
       "dependencies": {
         "file-type": {
@@ -807,7 +806,6 @@
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
       "integrity": "sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=",
       "dev": true,
-      "optional": true,
       "requires": {
         "jsbn": "0.1.1",
         "safer-buffer": "2.1.2"
@@ -827,7 +825,7 @@
       "requires": {
         "bn.js": "4.11.8",
         "brorand": "1.1.0",
-        "hash.js": "1.1.5",
+        "hash.js": "1.1.7",
         "hmac-drbg": "1.0.1",
         "inherits": "2.0.1",
         "minimalistic-assert": "1.0.1",
@@ -967,7 +965,7 @@
       "integrity": "sha512-SoYhktEbLxf+fiux5SfCEwdzWENMvgIbMZD90I62s4GZD9nEjgEWy8ZboI3hck193Vs0bDoTohDISx84f2H2tw==",
       "dev": true,
       "requires": {
-        "@types/node": "10.10.3",
+        "@types/node": "10.12.15",
         "aes-js": "3.0.0",
         "bn.js": "4.11.8",
         "elliptic": "6.3.3",
@@ -1059,7 +1057,7 @@
       "integrity": "sha512-/f2Go4TognH/KvCISP7OUsHn85hT9nUkxxA9BEWxFn+Oj9o8ZNLm/40hdlgSLyuOimsrTKLUMEorQexp/aPQeA==",
       "dev": true,
       "requires": {
-        "md5.js": "1.3.4",
+        "md5.js": "1.3.5",
         "safe-buffer": "5.1.2"
       }
     },
@@ -1079,14 +1077,14 @@
       }
     },
     "express": {
-      "version": "4.16.3",
-      "resolved": "http://registry.npmjs.org/express/-/express-4.16.3.tgz",
-      "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
+      "version": "4.16.4",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.16.4.tgz",
+      "integrity": "sha512-j12Uuyb4FMrd/qQAm6uCHAkPtO8FDTRJZBDd5D2KOL2eLaz1yUNdUB/NOIyq0iU4q4cFarsUCrnFDPBcnksuOg==",
       "dev": true,
       "requires": {
         "accepts": "1.3.5",
         "array-flatten": "1.1.1",
-        "body-parser": "1.18.2",
+        "body-parser": "1.18.3",
         "content-disposition": "0.5.2",
         "content-type": "1.0.4",
         "cookie": "0.3.1",
@@ -1104,9 +1102,9 @@
         "parseurl": "1.3.2",
         "path-to-regexp": "0.1.7",
         "proxy-addr": "2.0.4",
-        "qs": "6.5.1",
+        "qs": "6.5.2",
         "range-parser": "1.2.0",
-        "safe-buffer": "5.1.1",
+        "safe-buffer": "5.1.2",
         "send": "0.16.2",
         "serve-static": "1.13.2",
         "setprototypeof": "1.1.0",
@@ -1116,24 +1114,6 @@
         "vary": "1.1.2"
       },
       "dependencies": {
-        "body-parser": {
-          "version": "1.18.2",
-          "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.2.tgz",
-          "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
-          "dev": true,
-          "requires": {
-            "bytes": "3.0.0",
-            "content-type": "1.0.4",
-            "debug": "2.6.9",
-            "depd": "1.1.2",
-            "http-errors": "1.6.3",
-            "iconv-lite": "0.4.19",
-            "on-finished": "2.3.0",
-            "qs": "6.5.1",
-            "raw-body": "2.3.2",
-            "type-is": "1.6.16"
-          }
-        },
         "debug": {
           "version": "2.6.9",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -1143,68 +1123,6 @@
             "ms": "2.0.0"
           }
         },
-        "iconv-lite": {
-          "version": "0.4.19",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
-          "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==",
-          "dev": true
-        },
-        "inherits": {
-          "version": "2.0.3",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-          "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
-          "dev": true
-        },
-        "qs": {
-          "version": "6.5.1",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.1.tgz",
-          "integrity": "sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A==",
-          "dev": true
-        },
-        "raw-body": {
-          "version": "2.3.2",
-          "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.2.tgz",
-          "integrity": "sha1-vNYMd9Prk83gBQKVw/N5OJvIj4k=",
-          "dev": true,
-          "requires": {
-            "bytes": "3.0.0",
-            "http-errors": "1.6.2",
-            "iconv-lite": "0.4.19",
-            "unpipe": "1.0.0"
-          },
-          "dependencies": {
-            "depd": {
-              "version": "1.1.1",
-              "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.1.tgz",
-              "integrity": "sha1-V4O04cRZ8G+lyif5kfPQbnoxA1k=",
-              "dev": true
-            },
-            "http-errors": {
-              "version": "1.6.2",
-              "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.2.tgz",
-              "integrity": "sha1-CgAsyFcHGSp+eUbO7cERVfYOxzY=",
-              "dev": true,
-              "requires": {
-                "depd": "1.1.1",
-                "inherits": "2.0.3",
-                "setprototypeof": "1.0.3",
-                "statuses": "1.4.0"
-              }
-            },
-            "setprototypeof": {
-              "version": "1.0.3",
-              "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.0.3.tgz",
-              "integrity": "sha1-ZlZ+NwQ+608E2RvWWMDL77VbjgQ=",
-              "dev": true
-            }
-          }
-        },
-        "safe-buffer": {
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+        "command-exists": "1.2.8",
         "fs-extra": "0.30.0",
         "keccak": "1.4.0",
         "memorystream": "0.3.1",
         "require-from-string": "2.0.2",
-        "semver": "5.5.1",
+        "semver": "5.6.0",
+        "tmp": "0.0.33",
         "yargs": "11.1.0"
       },
       "dependencies": {
@@ -3300,7 +3216,7 @@
         "shelljs": "0.7.8",
         "sol-explore": "1.6.2",
         "solidity-parser-sc": "0.4.11",
-        "tree-kill": "1.2.0",
+        "tree-kill": "1.2.1",
         "web3": "0.18.4"
       },
       "dependencies": {
@@ -3463,19 +3379,19 @@
       }
     },
     "spdx-correct": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.0.0.tgz",
-      "integrity": "sha512-N19o9z5cEyc8yQQPukRCZ9EUmb4HUpnrmaL/fxS2pBo2jbfcFRVuFZ/oFC+vZz0MNNk0h80iMn5/S6qGZOL5+g==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
+      "integrity": "sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==",
       "dev": true,
       "requires": {
         "spdx-expression-parse": "3.0.0",
-        "spdx-license-ids": "3.0.1"
+        "spdx-license-ids": "3.0.2"
       }
     },
     "spdx-exceptions": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.1.0.tgz",
-      "integrity": "sha512-4K1NsmrlCU1JJgUrtgEeTVyfx8VaYea9J9LvARxhbHtVtohPs/gFGG5yy49beySjlIMhhXZ4QqujIZEfS4l6Cg==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
+      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
       "dev": true
     },
     "spdx-expression-parse": {
@@ -3484,26 +3400,26 @@
       "integrity": "sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==",
       "dev": true,
       "requires": {
-        "spdx-exceptions": "2.1.0",
-        "spdx-license-ids": "3.0.1"
+        "spdx-exceptions": "2.2.0",
+        "spdx-license-ids": "3.0.2"
       }
     },
     "spdx-license-ids": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.1.tgz",
-      "integrity": "sha512-TfOfPcYGBB5sDuPn3deByxPhmfegAhpDYKSOXZQN81Oyrrif8ZCodOLzK3AesELnCx03kikhyDwh0pfvvQvF8w==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.2.tgz",
+      "integrity": "sha512-qky9CVt0lVIECkEsYbNILVnPvycuEBkXoMFLRWsREkomQLevYhtRKC+R91a5TOAQ3bCMjikRwhyaRqj1VYatYg==",
       "dev": true
     },
     "sprintf-js": {
       "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "resolved": "http://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
       "dev": true
     },
     "sshpk": {
-      "version": "1.14.2",
-      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.14.2.tgz",
-      "integrity": "sha1-xvxhZIo9nE52T9P8306hBeSSupg=",
+      "version": "1.15.2",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.15.2.tgz",
+      "integrity": "sha512-Ra/OXQtuh0/enyl4ETZAfTaeksa6BXks5ZcjpSUNrjBr0DvrJKX+1fsKDPpT9TBXgHAFsa4510aNVgI8g/+SzA==",
       "dev": true,
       "requires": {
         "asn1": "0.2.4",
@@ -3531,7 +3447,7 @@
     },
     "string-width": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+      "resolved": "http://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
       "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
       "dev": true,
       "requires": {
@@ -3606,14 +3522,14 @@
       "integrity": "sha512-G8gi5fcXP/2upwiuOShJ258sIufBVztekgobr3cVgYXObZwJ5AXLqZn52AI+/ffft29pJexF9WNdUxjlkVehoQ==",
       "dev": true,
       "requires": {
-        "bluebird": "3.5.2",
+        "bluebird": "3.5.3",
         "buffer": "5.2.1",
         "decompress": "4.2.0",
         "eth-lib": "0.1.27",
         "fs-extra": "2.1.2",
         "fs-promise": "2.0.3",
         "got": "7.1.0",
-        "mime-types": "2.1.20",
+        "mime-types": "2.1.21",
         "mkdirp-promise": "5.0.1",
         "mock-fs": "4.7.0",
         "setimmediate": "1.0.5",
@@ -3627,7 +3543,7 @@
           "integrity": "sha1-BGxwFjzvmq1GsOSn+kZ/si1x3jU=",
           "dev": true,
           "requires": {
-            "graceful-fs": "4.1.11",
+            "graceful-fs": "4.1.15",
             "jsonfile": "2.4.0"
           }
         }
@@ -3710,6 +3626,15 @@
       "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=",
       "dev": true
     },
+    "tmp": {
+      "version": "0.0.33",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
+      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dev": true,
+      "requires": {
+        "os-tmpdir": "1.0.2"
+      }
+    },
     "to-buffer": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
@@ -3722,14 +3647,22 @@
       "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
       "dev": true,
       "requires": {
-        "psl": "1.1.29",
+        "psl": "1.1.31",
         "punycode": "1.4.1"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
+          "dev": true
+        }
       }
     },
     "tree-kill": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.0.tgz",
-      "integrity": "sha512-DlX6dR0lOIRDFxI0mjL9IYg6OTncLm/Zt+JiBhE5OlFcAR8yc9S7FFXU9so0oda47frdM/JFsk7UjNt9vscKcg==",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.1.tgz",
+      "integrity": "sha512-4hjqbObwlh2dLyW4tcz0Ymw0ggoaVDMveUB9w8kFSQScdRLo0gxO9J7WFcUBo+W3C1TLdFIEwNOWebgZZ0RH9Q==",
       "dev": true
     },
     "trim": {
@@ -3746,7 +3679,7 @@
       "requires": {
         "mocha": "4.1.0",
         "original-require": "1.0.1",
-        "solc": "0.5.0"
+        "solc": "0.5.1"
       }
     },
     "tunnel-agent": {
@@ -3762,8 +3695,7 @@
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "type-check": {
       "version": "0.3.2",
@@ -3781,7 +3713,7 @@
       "dev": true,
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.20"
+        "mime-types": "2.1.21"
       }
     },
     "typedarray-to-buffer": {
@@ -3811,9 +3743,9 @@
       "dev": true
     },
     "unbzip2-stream": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.3.0.tgz",
-      "integrity": "sha512-kE2WkurNnPUMcryNioS68DDbhoPB8Qxsd8btHSj+sd5Pjh2GsjmeHLzMSqV9HHziAo8FzVxVCJl9ZYhk7yY1pA==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.3.1.tgz",
+      "integrity": "sha512-fIZnvdjblYs7Cru/xC6tCPVhz7JkYcVQQkePwMLyQELzYTds2Xn8QefPVnvdVhhZqubxNA1cASXEH5wcK0Bucw==",
       "dev": true,
       "requires": {
         "buffer": "3.6.0",
@@ -3841,7 +3773,7 @@
     },
     "underscore": {
       "version": "1.8.3",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
+      "resolved": "http://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
       "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI=",
       "dev": true
     },
@@ -3851,6 +3783,15 @@
       "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=",
       "dev": true
     },
+    "uri-js": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
+      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
+      "dev": true,
+      "requires": {
+        "punycode": "2.1.1"
+      }
+    },
     "url-parse-lax": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-1.0.0.tgz",
@@ -3911,7 +3852,7 @@
       "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
       "dev": true,
       "requires": {
-        "spdx-correct": "3.0.0",
+        "spdx-correct": "3.1.0",
         "spdx-expression-parse": "3.0.0"
       }
     },
@@ -4249,7 +4190,7 @@
       "dev": true,
       "requires": {
         "debug": "2.6.9",
-        "nan": "2.11.0",
+        "nan": "2.12.0",
         "typedarray-to-buffer": "3.1.5",
         "yaeti": "0.0.6"
       },
diff --git a/test/gateway/eip20_cogateway/helpers/helper.js b/test/gateway/eip20_cogateway/helpers/helper.js
new file mode 100644
index 00000000..a9e4626c
--- /dev/null
+++ b/test/gateway/eip20_cogateway/helpers/helper.js
@@ -0,0 +1,80 @@
+// Copyright 2018 OpenST Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// ----------------------------------------------------------------------------
+//
+// http://www.simpletoken.org/
+//
+// ----------------------------------------------------------------------------
+
+'use strict';
+
+const web3 = require('../../../test_lib/web3.js');
+
+
+const EIP20CoGatewayHelper = function () {
+
+};
+
+EIP20CoGatewayHelper.prototype = {
+  
+  /**
+   * Generate the redeem type hash. This is as per EIP-712.
+   *
+   * @return {string} Message type hash.
+   */
+  redeemTypeHash: async function () {
+    return web3.utils.soliditySha3(
+      'string',
+      'Redeem(uint256 amount,address beneficiary,MessageBus.Message message)',
+    );
+  },
+  
+  /**
+   * Generate the redeem intent hash.
+   *
+   * @param {object} amount Redeem amount.
+   * @param {string} beneficiary Beneficiary address.
+   * @param {string} redeemer Redeemer address.
+   * @param {object} nonce Nonce of staker (Big Number).
+   * @param {object} gasPrice Gas price (Big Number).
+   * @param {object} gasLimit Gas limit (Big Number).
+   * @param {string} token EIP20 token address.
+   *
+   * @return {string} Redeem intent hash.
+   */
+  hashRedeemIntent: async function (
+    amount,
+    beneficiary,
+    redeemer,
+    nonce,
+    gasPrice,
+    gasLimit,
+    token
+  ) {
+    
+    return web3.utils.soliditySha3(
+      {t: 'uint256', v: amount},
+      {t: 'address', v: beneficiary},
+      {t: 'address', v: redeemer},
+      {t: 'uint256', v: nonce},
+      {t: 'uint256', v: gasPrice},
+      {t: 'uint256', v: gasLimit},
+      {t: 'address', v: token},
+    );
+  },
+  
+};
+
+module.exports = EIP20CoGatewayHelper;
diff --git a/test/gateway/eip20_cogateway/progress_mint.js b/test/gateway/eip20_cogateway/progress_mint.js
new file mode 100644
index 00000000..99cefbfc
--- /dev/null
+++ b/test/gateway/eip20_cogateway/progress_mint.js
@@ -0,0 +1,419 @@
+// Copyright 2018 OpenST Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// ----------------------------------------------------------------------------
+//
+// http://www.simpletoken.org/
+//
+// ----------------------------------------------------------------------------
+
+const BN = require('bn.js'),
+  Utils = require('../../test_lib/utils'),
+  EIP20CoGatewayHelper = require('./helpers/helper'),
+  MessageBus = artifacts.require('MessageBus'),
+  EIP20Token = artifacts.require('EIP20Token'),
+  TestEIP20CoGateway = artifacts.require('TestEIP20CoGateway'),
+  TestUtilityToken = artifacts.require('TestUtilityToken');
+
+let valueToken,
+  burner,
+  mockSafeCore,
+  membersManager,
+  coGateway,
+  testUtilityToken,
+  bountyAmount,
+  owner,
+  staker,
+  stakerBalance,
+  rewardAmount,
+  symbol = 'OST',
+  name = 'Simple Token',
+  decimals = 18,
+  helper;
+
+const zeroBytes =
+  "0x0000000000000000000000000000000000000000000000000000000000000000";
+
+let MessageStatusEnum = {
+  Undeclared: 0,
+  Declared: 1,
+  Progressed: 2,
+  DeclaredRevocation: 3,
+  Revoked: 4
+};
+
+async function _setup(accounts) {
+  
+  valueToken = accounts[0];
+  burner = accounts[10];
+  mockSafeCore = accounts[11];
+  membersManager = accounts[2];
+  coGateway = accounts[3];
+  owner = accounts[8];
+  testUtilityToken = await TestUtilityToken.new(
+    valueToken,
+    symbol,
+    name,
+    decimals,
+    membersManager
+  );
+  bountyAmount = new BN(100);
+  staker = accounts[7];
+  stakerBalance = new BN(1000000);
+  rewardAmount = new BN(100);
+  
+}
+
+contract('EIP20CoGateway.progressMint() ', function (accounts) {
+  
+  let amount = new BN(200),
+    beneficiary = accounts[4],
+    gasPrice,
+    gasLimit,
+    nonce = new BN(1),
+    hashLockObj = Utils.generateHashLock(),
+    facilitator = accounts[5],
+    intentHash,
+    hashLock,
+    unlockSecret,
+    testEIP20CoGateway,
+    messageHash;
+  helper = new EIP20CoGatewayHelper();
+  
+  beforeEach(async function () {
+    
+    await _setup(accounts);
+    amount = new BN(200);
+    hashLock = hashLockObj.l;
+    unlockSecret = hashLockObj.s;
+    gasPrice = new BN(10);
+    gasLimit = new BN(10);
+    
+    intentHash = await helper.hashRedeemIntent(
+      amount,
+      beneficiary,
+      facilitator,
+      nonce,
+      gasPrice,
+      gasLimit,
+      valueToken,
+    );
+    testEIP20CoGateway = await TestEIP20CoGateway.new(
+      valueToken,
+      testUtilityToken.address,
+      mockSafeCore,
+      bountyAmount,
+      membersManager,
+      coGateway,
+      burner,
+    );
+    
+    await testUtilityToken.setCoGatewayAddress(testEIP20CoGateway.address);
+    
+    messageHash = await testEIP20CoGateway.setStakeMessage.call(
+      intentHash,
+      nonce,
+      gasPrice,
+      gasLimit,
+      hashLock,
+      staker,
+    );
+    await testEIP20CoGateway.setStakeMessage(
+      intentHash,
+      nonce,
+      gasPrice,
+      gasLimit,
+      hashLock,
+      staker,
+    );
+    
+    await testEIP20CoGateway.setMints(messageHash, beneficiary, amount);
+    
+  });
+  
+  it('should progress mint for non-zero facilitator reward', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Declared,
+    );
+    
+    let progressMintValues = await testEIP20CoGateway.progressMint.call(
+      messageHash,
+      unlockSecret,
+      {from: facilitator},
+    );
+    
+    let expectedMintedToken = new BN(100),
+      expectedReward = new BN(100);
+    
+    assert.strictEqual(
+      progressMintValues.beneficiary_,
+      beneficiary,
+      `Beneficiary address should be ${beneficiary}`,
+    );
+    
+    assert.strictEqual(
+      amount.eq(progressMintValues.stakeAmount_),
+      true,
+      `Staked amount should be ${amount}.`,
+    );
+    
+    assert.strictEqual(
+      expectedMintedToken.eq(progressMintValues.mintedAmount_),
+      true,
+      `Minted amount should be ${expectedMintedToken}.`,
+    );
+    
+    assert.strictEqual(
+      expectedReward.eq(progressMintValues.rewardAmount_),
+      true,
+      `Reward to facilitator should be ${expectedReward}.`,
+    );
+    
+    let response = await testEIP20CoGateway.progressMint(
+      messageHash,
+      unlockSecret,
+      {from: facilitator},
+    );
+    
+    let facilitatorBalance = await testUtilityToken.balanceOf(facilitator);
+    let beneficiaryBalance = await testUtilityToken.balanceOf(beneficiary);
+    
+    assert.strictEqual(
+      facilitatorBalance.eq(expectedReward),
+      true,
+      `Facilitator reward should be ${expectedReward}.`,
+    );
+    
+    assert.strictEqual(
+      beneficiaryBalance.eq(amount.sub(expectedReward)),
+      true,
+      `Beneficiary balance should be ${amount.sub(expectedReward)}.`
+    );
+    
+    let expectedEvent = {
+      MintProgressed: {
+        _messageHash: messageHash,
+        _staker: staker,
+        _stakeAmount: amount,
+        _mintedAmount: expectedMintedToken,
+        _rewardAmount: expectedReward,
+        _proofProgress: false,
+        _unlockSecret: unlockSecret
+      }
+    };
+    
+    assert.equal(
+      response.receipt.status,
+      1,
+      'Receipt status is unsuccessful.',
+    );
+    
+    let eventData = response.logs;
+    Utils.validateEvents(eventData, expectedEvent);
+    
+  });
+  
+  it('should progress mint for zero facilitator reward', async function () {
+    
+    gasPrice = new BN(0);
+    
+    let messageHash = await testEIP20CoGateway.setStakeMessage.call(
+      intentHash,
+      nonce,
+      gasPrice,
+      gasLimit,
+      hashLock,
+      staker,
+    );
+    
+    await testEIP20CoGateway.setStakeMessage(
+      intentHash,
+      nonce,
+      gasPrice,
+      gasLimit,
+      hashLock,
+      staker,
+    );
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Declared,
+    );
+    await testEIP20CoGateway.setMints(messageHash, beneficiary, amount);
+    
+    let response = await testEIP20CoGateway.progressMint(
+      messageHash,
+      unlockSecret,
+      {from: facilitator},
+    );
+    
+    let facilitatorBalance = await testUtilityToken.balanceOf(facilitator);
+    let beneficiaryBalance = await testUtilityToken.balanceOf(beneficiary);
+    
+    assert.strictEqual(
+      beneficiaryBalance.eq(amount),
+      true,
+      `Balance for beneficiary should be ${amount}`,
+    );
+    
+    assert.strictEqual(
+      facilitatorBalance.eq(new BN(0)),
+      true,
+      'Facilitator reward should be zero',
+    );
+    
+    let expectedEvent = {
+      MintProgressed: {
+        _messageHash: messageHash,
+        _staker: staker,
+        _stakeAmount: amount,
+        _mintedAmount: amount,
+        _rewardAmount: new BN(0),
+        _proofProgress: false,
+        _unlockSecret: unlockSecret
+      }
+    };
+    
+    assert.equal(
+      response.receipt.status,
+      1,
+      'Receipt status is unsuccessful.',
+    );
+    
+    let eventData = response.logs;
+    Utils.validateEvents(eventData, expectedEvent);
+    
+  });
+  
+  it('should fail when messagehash is zero', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Declared,
+    );
+    
+    messageHash = zeroBytes;
+    
+    await Utils.expectRevert(
+      testEIP20CoGateway.progressMint(
+        messageHash,
+        unlockSecret,
+        {from: facilitator},
+      ),
+      'Message hash must not be zero.',
+    );
+    
+  });
+  
+  it('should fail when message status is declared revocation', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.DeclaredRevocation,
+    );
+    
+    await Utils.expectRevert(
+      testEIP20CoGateway.progressMint(
+        messageHash,
+        unlockSecret,
+        {from: facilitator},
+      ),
+      'Message on target status must be Declared.',
+    );
+    
+  });
+  
+  it('should fail when message status is revoked', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Revoked,
+    );
+    
+    await Utils.expectRevert(
+      testEIP20CoGateway.progressMint(
+        messageHash,
+        unlockSecret,
+        {from: facilitator},
+      ),
+      'Message on target status must be Declared.',
+    );
+    
+  });
+  
+  it('should fail when message status is undeclared', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Undeclared,
+    );
+    
+    await Utils.expectRevert(
+      testEIP20CoGateway.progressMint(
+        messageHash,
+        unlockSecret,
+        {from: facilitator},
+      ),
+      'Message on target status must be Declared.',
+    );
+    
+  });
+  
+  it('should fail when unlock secret is invalid', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Undeclared,
+    );
+    
+    unlockSecret = zeroBytes;
+    
+    await Utils.expectRevert(
+      testEIP20CoGateway.progressMint(
+        messageHash,
+        unlockSecret,
+        {from: facilitator},
+      ),
+      'Invalid unlock secret.',
+    );
+    
+  });
+  
+  it('should fail when message status is already progressed', async function () {
+    
+    await testEIP20CoGateway.setInboxStatus(
+      messageHash,
+      MessageStatusEnum.Declared,
+    );
+    
+    await testEIP20CoGateway.progressMint(
+      messageHash,
+      unlockSecret,
+      {from: facilitator},
+    );
+    
+    await Utils.expectRevert(
+      testEIP20CoGateway.progressMint(
+        messageHash,
+        unlockSecret,
+        {from: facilitator},
+      ),
+      'Message on target status must be Declared.',
+    );
+    
+  });
+  
+});
+