diff --git a/bridge_ui/src/components/NFTOriginVerifier.tsx b/bridge_ui/src/components/NFTOriginVerifier.tsx
index 8fc236af..8d976c23 100644
--- a/bridge_ui/src/components/NFTOriginVerifier.tsx
+++ b/bridge_ui/src/components/NFTOriginVerifier.tsx
@@ -1,6 +1,7 @@
 import {
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
   hexToNativeString,
   uint8ArrayToHex,
@@ -316,6 +317,17 @@ export default function NFTOriginVerifier() {
                   >
                     View on BscScan
                   </Button>
+                ) : originInfo.chainId === CHAIN_ID_POLYGON ? (
+                  <Button
+                    href={`https://opensea.io/assets/matic/${readableAddress}/${originInfo.tokenId}`}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    endIcon={<Launch />}
+                    className={classes.viewButton}
+                    variant="outlined"
+                  >
+                    View on OpenSea
+                  </Button>
                 ) : (
                   <Button
                     href={`https://opensea.io/assets/${readableAddress}/${originInfo.tokenId}`}
diff --git a/bridge_ui/src/components/ShowTx.tsx b/bridge_ui/src/components/ShowTx.tsx
index 5c593857..63d84a94 100644
--- a/bridge_ui/src/components/ShowTx.tsx
+++ b/bridge_ui/src/components/ShowTx.tsx
@@ -2,6 +2,7 @@ import {
   ChainId,
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
   CHAIN_ID_TERRA,
 } from "@certusone/wormhole-sdk";
@@ -39,6 +40,8 @@ export default function ShowTx({
         }`
       : chainId === CHAIN_ID_BSC
       ? `https://bscscan.com/tx/${tx?.id}`
+      : chainId === CHAIN_ID_POLYGON
+      ? `https://polygonscan.com/tx/${tx?.id}`
       : chainId === CHAIN_ID_SOLANA
       ? `https://explorer.solana.com/tx/${tx?.id}${
           CLUSTER === "testnet"
diff --git a/bridge_ui/src/components/SmartAddress.tsx b/bridge_ui/src/components/SmartAddress.tsx
index 445d4679..e8c46961 100644
--- a/bridge_ui/src/components/SmartAddress.tsx
+++ b/bridge_ui/src/components/SmartAddress.tsx
@@ -2,6 +2,7 @@ import {
   ChainId,
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
   CHAIN_ID_TERRA,
   isNativeDenom,
@@ -98,6 +99,8 @@ export default function SmartAddress({
       }etherscan.io/address/${useableAddress}`
     : chainId === CHAIN_ID_BSC
     ? `https://bscscan.com/address/${useableAddress}`
+    : chainId === CHAIN_ID_POLYGON
+    ? `https://polygonscan.com/address/${useableAddress}`
     : chainId === CHAIN_ID_SOLANA
     ? `https://explorer.solana.com/address/${useableAddress}${
         CLUSTER === "testnet"
diff --git a/bridge_ui/src/components/TokenSelectors/NFTViewer.tsx b/bridge_ui/src/components/TokenSelectors/NFTViewer.tsx
index d6d29934..f76a0bba 100644
--- a/bridge_ui/src/components/TokenSelectors/NFTViewer.tsx
+++ b/bridge_ui/src/components/TokenSelectors/NFTViewer.tsx
@@ -15,12 +15,14 @@ import {
   ChainId,
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
 } from "@certusone/wormhole-sdk";
 import SmartAddress from "../SmartAddress";
 import bscIcon from "../../icons/bsc.svg";
 import ethIcon from "../../icons/eth.svg";
 import solanaIcon from "../../icons/solana.svg";
+import polygonIcon from "../../icons/polygon.svg";
 import useCopyToClipboard from "../../hooks/useCopyToClipboard";
 import { Skeleton } from "@material-ui/lab";
 import Wormhole from "../../icons/wormhole-network.svg";
@@ -69,6 +71,18 @@ const LogoIcon = ({ chainId }: { chainId: ChainId }) =>
       src={bscIcon}
       alt="Binance Smart Chain"
     />
+  ) : chainId === CHAIN_ID_POLYGON ? (
+    <Avatar
+      style={{
+        backgroundColor: "black",
+        height: "1em",
+        width: "1em",
+        marginLeft: "4px",
+        padding: "3px",
+      }}
+      src={polygonIcon}
+      alt="Polygon"
+    />
   ) : null;
 
 const useStyles = makeStyles((theme) => ({
@@ -90,7 +104,7 @@ const useStyles = makeStyles((theme) => ({
     background:
       "linear-gradient(to right, #ffb347 0%, #ffcc33  51%, #ffb347  100%)",
   },
-  solanaBorder: {
+  silverBorder: {
     backgroundColor: "#D9D8D6",
     backgroundSize: "200% auto",
     background:
@@ -135,12 +149,12 @@ const useStyles = makeStyles((theme) => ({
       border: "1px solid #ffb347",
     },
   },
-  solanaMediaBorder: {
+  silverMediaBorder: {
     "& > img, & > video": {
       borderColor: "#D7DDE8",
     },
   },
-  // thanks https://cssgradient.io/
+  // thanks https://cssgradient.io/ and https://htmlcolorcodes.com/color-picker/
   eth: {
     // colors from https://en.wikipedia.org/wiki/Ethereum#/media/File:Ethereum-icon-purple.svg
     backgroundColor: "rgb(69,74,117)",
@@ -153,6 +167,12 @@ const useStyles = makeStyles((theme) => ({
     background:
       "linear-gradient(160deg, rgb(20, 21, 26) 0%, #4A4D57 33%, rgb(20, 21, 26) 66%, #2C2F3B 100%)",
   },
+  polygon: {
+    // color from polygon logo #8247E5 down to 30 lightness
+    backgroundColor: "#0F0323",
+    background:
+      "linear-gradient(160deg, #0F0323 0%, #250957 33%, #0F0323 66%, #0F0323 100%)",
+  },
   solana: {
     // colors from https://solana.com/branding/new/exchange/exchange-sq-black.svg
     backgroundColor: "rgb(153,69,255)",
@@ -354,7 +374,8 @@ export default function NFTViewer({
       </div>
       <Card
         className={clsx(classes.card, {
-          [classes.solanaBorder]: chainId === CHAIN_ID_SOLANA,
+          [classes.silverBorder]:
+            chainId === CHAIN_ID_SOLANA || chainId === CHAIN_ID_POLYGON,
           [classes.hidden]: isLoading,
         })}
         elevation={10}
@@ -364,6 +385,7 @@ export default function NFTViewer({
             [classes.eth]: chainId === CHAIN_ID_ETH,
             [classes.bsc]: chainId === CHAIN_ID_BSC,
             [classes.solana]: chainId === CHAIN_ID_SOLANA,
+            [classes.polygon]: chainId === CHAIN_ID_POLYGON,
           })}
         >
           <CardContent className={classes.textContent}>
@@ -384,7 +406,8 @@ export default function NFTViewer({
           </CardContent>
           <CardMedia
             className={clsx(classes.mediaContent, {
-              [classes.solanaMediaBorder]: chainId === CHAIN_ID_SOLANA,
+              [classes.silverMediaBorder]:
+                chainId === CHAIN_ID_SOLANA || chainId === CHAIN_ID_POLYGON,
             })}
           >
             {media}
diff --git a/bridge_ui/src/components/Transfer/Redeem.tsx b/bridge_ui/src/components/Transfer/Redeem.tsx
index d4d4ac90..2abc96d3 100644
--- a/bridge_ui/src/components/Transfer/Redeem.tsx
+++ b/bridge_ui/src/components/Transfer/Redeem.tsx
@@ -1,6 +1,7 @@
 import {
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
   WSOL_ADDRESS,
 } from "@certusone/wormhole-sdk";
@@ -13,7 +14,7 @@ import {
   selectTransferTargetAsset,
   selectTransferTargetChain,
 } from "../../store/selectors";
-import { WBNB_ADDRESS, WETH_ADDRESS } from "../../utils/consts";
+import { WBNB_ADDRESS, WETH_ADDRESS, WMATIC_ADDRESS } from "../../utils/consts";
 import ButtonWithLoader from "../ButtonWithLoader";
 import KeyAndBalance from "../KeyAndBalance";
 import { SolanaCreateAssociatedAddressAlternate } from "../SolanaCreateAssociatedAddress";
@@ -35,11 +36,16 @@ function Redeem() {
     targetChain === CHAIN_ID_BSC &&
     targetAsset &&
     targetAsset.toLowerCase() === WBNB_ADDRESS.toLowerCase();
+  const isPolygonNative =
+    targetChain === CHAIN_ID_POLYGON &&
+    targetAsset &&
+    targetAsset.toLowerCase() === WMATIC_ADDRESS.toLowerCase();
   const isSolNative =
     targetChain === CHAIN_ID_SOLANA &&
     targetAsset &&
     targetAsset === WSOL_ADDRESS;
-  const isNativeEligible = isEthNative || isBscNative || isSolNative;
+  const isNativeEligible =
+    isEthNative || isBscNative || isPolygonNative || isSolNative;
   const [useNativeRedeem, setUseNativeRedeem] = useState(true);
   const toggleNativeRedeem = useCallback(() => {
     setUseNativeRedeem(!useNativeRedeem);
diff --git a/bridge_ui/src/hooks/useGetSourceParsedTokenAccounts.ts b/bridge_ui/src/hooks/useGetSourceParsedTokenAccounts.ts
index 0b5670bf..b7666449 100644
--- a/bridge_ui/src/hooks/useGetSourceParsedTokenAccounts.ts
+++ b/bridge_ui/src/hooks/useGetSourceParsedTokenAccounts.ts
@@ -2,6 +2,7 @@ import {
   ChainId,
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
   CHAIN_ID_TERRA,
   WSOL_ADDRESS,
@@ -59,6 +60,8 @@ import {
   WBNB_DECIMALS,
   WETH_ADDRESS,
   WETH_DECIMALS,
+  WMATIC_ADDRESS,
+  WMATIC_DECIMALS,
 } from "../utils/consts";
 import { isEVMChain } from "../utils/ethereum";
 import {
@@ -68,6 +71,7 @@ import {
 } from "../utils/solana";
 import bnbIcon from "../icons/bnb.svg";
 import ethIcon from "../icons/eth.svg";
+import polygonIcon from "../icons/polygon.svg";
 
 export function createParsedTokenAccount(
   publicKey: string,
@@ -207,7 +211,7 @@ const createNativeEthParsedTokenAccount = (
           balanceInEth.toString(), //This is the actual display field, which has full precision.
           "ETH", //A white lie for display purposes
           "Ethereum", //A white lie for display purposes
-          ethIcon, //TODO logo
+          ethIcon,
           true //isNativeAsset
         );
       });
@@ -230,7 +234,30 @@ const createNativeBscParsedTokenAccount = (
           balanceInEth.toString(), //This is the actual display field, which has full precision.
           "BNB", //A white lie for display purposes
           "Binance Coin", //A white lie for display purposes
-          bnbIcon, //TODO logo
+          bnbIcon,
+          true //isNativeAsset
+        );
+      });
+};
+
+const createNativePolygonParsedTokenAccount = (
+  provider: Provider,
+  signerAddress: string | undefined
+) => {
+  return !(provider && signerAddress)
+    ? Promise.reject()
+    : provider.getBalance(signerAddress).then((balanceInWei) => {
+        const balanceInEth = ethers.utils.formatEther(balanceInWei);
+        return createParsedTokenAccount(
+          signerAddress, //public key
+          WMATIC_ADDRESS, //Mint key, On the other side this will be WMATIC, so this is hopefully a white lie.
+          balanceInWei.toString(), //amount, in wei
+          WMATIC_DECIMALS, //Luckily both MATIC and WMATIC have 18 decimals, so this should not be an issue.
+          parseFloat(balanceInEth), //This loses precision, but is a limitation of the current datamodel. This field is essentially deprecated
+          balanceInEth.toString(), //This is the actual display field, which has full precision.
+          "MATIC", //A white lie for display purposes
+          "Matic", //A white lie for display purposes
+          polygonIcon,
           true //isNativeAsset
         );
       });
@@ -604,7 +631,41 @@ function useGetAvailableTokens(nft: boolean = false) {
           if (!cancelled) {
             setEthNativeAccount(undefined);
             setEthNativeAccountLoading(false);
-            setEthNativeAccountError("Unable to retrieve your BSC balance.");
+            setEthNativeAccountError("Unable to retrieve your BNB balance.");
+          }
+        }
+      );
+    }
+
+    return () => {
+      cancelled = true;
+    };
+  }, [lookupChain, provider, signerAddress, nft, ethNativeAccount]);
+
+  //Polygon native asset load
+  useEffect(() => {
+    let cancelled = false;
+    if (
+      signerAddress &&
+      lookupChain === CHAIN_ID_POLYGON &&
+      !ethNativeAccount &&
+      !nft
+    ) {
+      setEthNativeAccountLoading(true);
+      createNativePolygonParsedTokenAccount(provider, signerAddress).then(
+        (result) => {
+          console.log("create native account returned with value", result);
+          if (!cancelled) {
+            setEthNativeAccount(result);
+            setEthNativeAccountLoading(false);
+            setEthNativeAccountError("");
+          }
+        },
+        (error) => {
+          if (!cancelled) {
+            setEthNativeAccount(undefined);
+            setEthNativeAccountLoading(false);
+            setEthNativeAccountError("Unable to retrieve your MATIC balance.");
           }
         }
       );
diff --git a/bridge_ui/src/utils/consts.ts b/bridge_ui/src/utils/consts.ts
index f1cbd504..50ea7f32 100644
--- a/bridge_ui/src/utils/consts.ts
+++ b/bridge_ui/src/utils/consts.ts
@@ -2,6 +2,7 @@ import {
   ChainId,
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   CHAIN_ID_SOLANA,
   CHAIN_ID_TERRA,
 } from "@certusone/wormhole-sdk";
@@ -9,6 +10,7 @@ import { clusterApiUrl } from "@solana/web3.js";
 import { getAddress } from "ethers/lib/utils";
 import bscIcon from "../icons/bsc.svg";
 import ethIcon from "../icons/eth.svg";
+// import polygonIcon from "../icons/polygon.svg";
 import solanaIcon from "../icons/solana.svg";
 import terraIcon from "../icons/terra.svg";
 
@@ -37,6 +39,11 @@ export const CHAINS =
           name: "Ethereum",
           logo: ethIcon,
         },
+        // {
+        //   id: CHAIN_ID_POLYGON,
+        //   name: "Polygon",
+        //   logo: polygonIcon,
+        // },
         {
           id: CHAIN_ID_SOLANA,
           name: "Solana",
@@ -86,7 +93,10 @@ export const CHAINS =
 export const BETA_CHAINS: ChainId[] = CLUSTER === "mainnet" ? [] : [];
 export const CHAINS_WITH_NFT_SUPPORT = CHAINS.filter(
   ({ id }) =>
-    id === CHAIN_ID_ETH || id === CHAIN_ID_BSC || id === CHAIN_ID_SOLANA
+    id === CHAIN_ID_BSC ||
+    id === CHAIN_ID_ETH ||
+    id === CHAIN_ID_POLYGON ||
+    id === CHAIN_ID_SOLANA
 );
 export type ChainsById = { [key in ChainId]: ChainInfo };
 export const CHAINS_BY_ID: ChainsById = CHAINS.reduce((obj, chain) => {
@@ -102,6 +112,8 @@ export const getDefaultNativeCurrencySymbol = (chainId: ChainId) =>
     ? "BNB"
     : chainId === CHAIN_ID_TERRA
     ? "LUNA"
+    : chainId === CHAIN_ID_POLYGON
+    ? "MATIC"
     : "";
 export const getExplorerName = (chainId: ChainId) =>
   chainId === CHAIN_ID_ETH
@@ -110,6 +122,8 @@ export const getExplorerName = (chainId: ChainId) =>
     ? "BscScan"
     : chainId === CHAIN_ID_TERRA
     ? "Finder"
+    : chainId === CHAIN_ID_POLYGON
+    ? "Polygonscan"
     : "Explorer";
 export const WORMHOLE_RPC_HOSTS =
   CLUSTER === "mainnet"
@@ -130,11 +144,15 @@ export const ETH_NETWORK_CHAIN_ID =
   CLUSTER === "mainnet" ? 1 : CLUSTER === "testnet" ? 5 : 1337;
 export const BSC_NETWORK_CHAIN_ID =
   CLUSTER === "mainnet" ? 56 : CLUSTER === "testnet" ? 97 : 1397;
+export const POLYGON_NETWORK_CHAIN_ID =
+  CLUSTER === "mainnet" ? 137 : CLUSTER === "testnet" ? 80001 : 1381;
 export const getEvmChainId = (chainId: ChainId) =>
   chainId === CHAIN_ID_ETH
     ? ETH_NETWORK_CHAIN_ID
     : chainId === CHAIN_ID_BSC
     ? BSC_NETWORK_CHAIN_ID
+    : chainId === CHAIN_ID_POLYGON
+    ? POLYGON_NETWORK_CHAIN_ID
     : undefined;
 export const SOLANA_HOST = process.env.REACT_APP_SOLANA_API_URL
   ? process.env.REACT_APP_SOLANA_API_URL
@@ -204,6 +222,27 @@ export const BSC_TOKEN_BRIDGE_ADDRESS = getAddress(
     ? "0x0290FB167208Af455bB137780163b7B7a9a10C16" // TODO: test address
     : "0x0290FB167208Af455bB137780163b7B7a9a10C16"
 );
+export const POLYGON_BRIDGE_ADDRESS = getAddress(
+  CLUSTER === "mainnet"
+    ? "0x7A4B5a56256163F07b2C80A7cA55aBE66c4ec4d7"
+    : CLUSTER === "testnet"
+    ? "0xC89Ce4735882C9F0f0FE26686c53074E09B0D550" // TODO: test address
+    : "0xC89Ce4735882C9F0f0FE26686c53074E09B0D550"
+);
+export const POLYGON_NFT_BRIDGE_ADDRESS = getAddress(
+  CLUSTER === "mainnet"
+    ? "0x90BBd86a6Fe93D3bc3ed6335935447E75fAb7fCf"
+    : CLUSTER === "testnet"
+    ? "0x26b4afb60d6c903165150c6f0aa14f8016be4aec" // TODO: test address
+    : "0x26b4afb60d6c903165150c6f0aa14f8016be4aec"
+);
+export const POLYGON_TOKEN_BRIDGE_ADDRESS = getAddress(
+  CLUSTER === "mainnet"
+    ? "0x5a58505a96D1dbf8dF91cB21B54419FC36e93fdE"
+    : CLUSTER === "testnet"
+    ? "0x0290FB167208Af455bB137780163b7B7a9a10C16" // TODO: test address
+    : "0x0290FB167208Af455bB137780163b7B7a9a10C16"
+);
 export const SOL_BRIDGE_ADDRESS =
   CLUSTER === "mainnet"
     ? "worm2ZoG2kUd4vFXhvjh93UUH596ayRfgQ2MgjNMTth"
@@ -251,6 +290,8 @@ export const getBridgeAddressForChain = (chainId: ChainId) =>
     ? BSC_BRIDGE_ADDRESS
     : chainId === CHAIN_ID_TERRA
     ? TERRA_BRIDGE_ADDRESS
+    : chainId === CHAIN_ID_POLYGON
+    ? POLYGON_BRIDGE_ADDRESS
     : "";
 export const getNFTBridgeAddressForChain = (chainId: ChainId) =>
   chainId === CHAIN_ID_SOLANA
@@ -259,6 +300,8 @@ export const getNFTBridgeAddressForChain = (chainId: ChainId) =>
     ? ETH_NFT_BRIDGE_ADDRESS
     : chainId === CHAIN_ID_BSC
     ? BSC_NFT_BRIDGE_ADDRESS
+    : chainId === CHAIN_ID_POLYGON
+    ? POLYGON_NFT_BRIDGE_ADDRESS
     : "";
 export const getTokenBridgeAddressForChain = (chainId: ChainId) =>
   chainId === CHAIN_ID_SOLANA
@@ -269,6 +312,8 @@ export const getTokenBridgeAddressForChain = (chainId: ChainId) =>
     ? BSC_TOKEN_BRIDGE_ADDRESS
     : chainId === CHAIN_ID_TERRA
     ? TERRA_TOKEN_BRIDGE_ADDRESS
+    : chainId === CHAIN_ID_POLYGON
+    ? POLYGON_TOKEN_BRIDGE_ADDRESS
     : "";
 
 export const COVALENT_API_KEY = process.env.REACT_APP_COVALENT_API_KEY
@@ -277,6 +322,7 @@ export const COVALENT_API_KEY = process.env.REACT_APP_COVALENT_API_KEY
 
 export const COVALENT_ETHEREUM_MAINNET = "1";
 export const COVALENT_BSC_MAINNET = "56";
+export const COVALENT_POLYGON_MAINNET = "137";
 export const COVALENT_GET_TOKENS_URL = (
   chainId: ChainId,
   walletAddress: string,
@@ -288,6 +334,8 @@ export const COVALENT_GET_TOKENS_URL = (
       ? COVALENT_ETHEREUM_MAINNET
       : chainId === CHAIN_ID_BSC
       ? COVALENT_BSC_MAINNET
+      : chainId === CHAIN_ID_POLYGON
+      ? COVALENT_POLYGON_MAINNET
       : "";
   // https://www.covalenthq.com/docs/api/#get-/v1/{chain_id}/address/{address}/balances_v2/
   return `https://api.covalenthq.com/v1/${chainNum}/address/${walletAddress}/balances_v2/?key=${COVALENT_API_KEY}${
@@ -313,6 +361,14 @@ export const WBNB_ADDRESS =
     : "0xDDb64fE46a91D46ee29420539FC25FD07c5FEa3E";
 export const WBNB_DECIMALS = 18;
 
+export const WMATIC_ADDRESS =
+  CLUSTER === "mainnet"
+    ? "0x0d500b1d8e8ef31e21c99d1db9a6444d3adf1270"
+    : CLUSTER === "testnet"
+    ? ""
+    : "0xDDb64fE46a91D46ee29420539FC25FD07c5FEa3E";
+export const WMATIC_DECIMALS = 18;
+
 export const WORMHOLE_V1_ETH_ADDRESS =
   CLUSTER === "mainnet"
     ? "0xf92cD566Ea4864356C5491c177A430C222d7e678"
diff --git a/bridge_ui/src/utils/ethereum.ts b/bridge_ui/src/utils/ethereum.ts
index 9769bf34..5135b606 100644
--- a/bridge_ui/src/utils/ethereum.ts
+++ b/bridge_ui/src/utils/ethereum.ts
@@ -2,6 +2,7 @@ import {
   ChainId,
   CHAIN_ID_BSC,
   CHAIN_ID_ETH,
+  CHAIN_ID_POLYGON,
   NFTImplementation,
   NFTImplementation__factory,
   TokenImplementation,
@@ -15,7 +16,9 @@ import {
 } from "../hooks/useGetSourceParsedTokenAccounts";
 
 export const isEVMChain = (chainId: ChainId) =>
-  chainId === CHAIN_ID_ETH || chainId === CHAIN_ID_BSC;
+  chainId === CHAIN_ID_ETH ||
+  chainId === CHAIN_ID_BSC ||
+  chainId === CHAIN_ID_POLYGON;
 
 //This is a valuable intermediate step to the parsed token account, as the token has metadata information on it.
 export async function getEthereumToken(
diff --git a/sdk/js/CHANGELOG.md b/sdk/js/CHANGELOG.md
index b0617762..35169b20 100644
--- a/sdk/js/CHANGELOG.md
+++ b/sdk/js/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.0.8
+
+### Added
+
+Polygon ChainId
+
 ## 0.0.7
 
 ### Changed
diff --git a/sdk/js/package.json b/sdk/js/package.json
index 41c39bdd..8d25a397 100644
--- a/sdk/js/package.json
+++ b/sdk/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@certusone/wormhole-sdk",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "SDK for interacting with Wormhole",
   "homepage": "https://wormholenetwork.com",
   "main": "lib/index.js",
diff --git a/sdk/js/src/utils/array.ts b/sdk/js/src/utils/array.ts
index 837b1c30..fe85db71 100644
--- a/sdk/js/src/utils/array.ts
+++ b/sdk/js/src/utils/array.ts
@@ -4,6 +4,7 @@ import {
   CHAIN_ID_ETH,
   CHAIN_ID_SOLANA,
   CHAIN_ID_TERRA,
+  CHAIN_ID_POLYGON,
 } from "./consts";
 import { humanAddress } from "../terra";
 import { PublicKey } from "@solana/web3.js";
@@ -22,7 +23,7 @@ export const hexToNativeString = (h: string | undefined, c: ChainId) => {
       ? undefined
       : c === CHAIN_ID_SOLANA
       ? new PublicKey(hexToUint8Array(h)).toString()
-      : c === CHAIN_ID_ETH || c === CHAIN_ID_BSC
+      : c === CHAIN_ID_ETH || c === CHAIN_ID_BSC || c === CHAIN_ID_POLYGON
       ? hexZeroPad(hexValue(hexToUint8Array(h)), 20)
       : c === CHAIN_ID_TERRA
       ? isHexNativeTerra(h)
diff --git a/sdk/js/src/utils/consts.ts b/sdk/js/src/utils/consts.ts
index 97343d5c..800302c1 100644
--- a/sdk/js/src/utils/consts.ts
+++ b/sdk/js/src/utils/consts.ts
@@ -1,8 +1,9 @@
-export type ChainId = 1 | 2 | 3 | 4;
+export type ChainId = 1 | 2 | 3 | 4 | 5;
 export const CHAIN_ID_SOLANA: ChainId = 1;
 export const CHAIN_ID_ETH: ChainId = 2;
 export const CHAIN_ID_TERRA: ChainId = 3;
 export const CHAIN_ID_BSC: ChainId = 4;
+export const CHAIN_ID_POLYGON: ChainId = 5;
 
 export const WSOL_ADDRESS = "So11111111111111111111111111111111111111112";
 export const WSOL_DECIMALS = 9;