> For the complete documentation index, see [llms.txt](https://matrixdock.gitbook.io/matrixdock-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://matrixdock.gitbook.io/matrixdock-docs/english/announcements/discontinuation-of-xaum-support-on-polygon-hashkey-chain-and-tron.md).

# Discontinuation of XAUm Support on Polygon, HashKey Chain, and Tron

**Publication Date:** August 7, 2026\
**Completion Date:** August 7, 2026

#### 1. Summary

Matrixdock is consolidating the multi-network deployments of XAUm (Matrixdock Gold) to concentrate liquidity and simplify cross-chain operations.

As of **August 7, 2026**, the XAUm deployments on the following three networks have been **discontinued**:

* **Polygon**
* **HashKey Chain**
* **Tron**

No XAUm holders are affected, and no user action is required.

Following this consolidation, XAUm continues to be fully supported on Ethereum, BNB Chain, Solana, Sui, Stellar, and Plume for minting, redemption, and cross-chain transfers. The physical gold reserves backing XAUm, its 1:1 redemption mechanism, and its Proof of Reserves are **unaffected** by this consolidation.

Matrixdock has **ceased all issuance and operations** on these three networks. Because a deployed smart contract cannot be deleted, these contracts will remain visible on-chain; they are permanently retired, and **Matrixdock will not use them again**.

#### 2. Discontinued Contract Addresses

<table><thead><tr><th width="153.125">Network</th><th width="412.12109375">XAUm Contract Address</th><th>Status</th></tr></thead><tbody><tr><td>Polygon</td><td><code>0xA7E22972a19dd924aFeEDf3Db28033B146801081</code></td><td>Discontinued — unsupported</td></tr><tr><td>HashKey Chain</td><td><code>0x2577217c86ae2E8a5f70Abb663B9231E5d47D15a</code></td><td>Discontinued — unsupported</td></tr><tr><td>Tron</td><td><code>TDfX64Ariz5usffBJjtDbiMuCXVpKiDCEb</code></td><td>Discontinued — unsupported</td></tr></tbody></table>

As of August 7, 2026:

* the on-chain total supply on each of the discontinued contracts listed above is **zero**, which anyone can verify independently on the relevant block explorer;
* **minting has been disabled** on all three networks;
* the **official cross-chain channels** between these three networks and all other networks have been closed.

#### 3. Important Notice

1. From August 7, 2026 onward, any token balance appearing on the contracts listed above **is not recognized by Matrixdock as valid XAUm** and carries no entitlement to the physical gold backing or redemption rights associated with XAUm.
2. Matrixdock **will not provide** any redemption, settlement, or compensation in relation to these contracts.
3. Tokens on these contracts **cannot** be transferred to any other network via official cross-chain channels.
4. **Please do not purchase, accept, or trade tokens on these contracts.** Matrixdock accepts no liability for any transaction involving them.
5. **This notice will remain publicly available** to allow anyone to verify the status of the contracts listed above at any time.

#### 4. Notice to Platforms

**Exchanges, market data providers, and wallet providers:**

* Please **remove** the three addresses above from your XAUm contract address and platform entries.
* Please **do not** list these tokens, create trading pairs, quote or aggregate their market data, or provide in-wallet support.

**Block explorers:**

* Please mark the contracts above as **discontinued** and update the associated token identity (logo) and project metadata (website, description, social links) accordingly.

For identity verification or supporting evidence, please contact <support@matrixdock.com>.

#### 5. Current Official XAUm Contract Addresses

<table><thead><tr><th width="106.8828125">Network</th><th width="686.09375">XAUm Contract Address</th></tr></thead><tbody><tr><td>Ethereum</td><td><code>0x2103E845C5E135493Bb6c2A4f0B8651956eA8682</code></td></tr><tr><td>BNB Chain</td><td><code>0x23AE4fd8E7844cdBc97775496eBd0E8248656028</code></td></tr><tr><td>Solana</td><td><code>5aLhp9VnUEKcsdtkfsf2DUgpJfomx7GmYVny24dHUZoB</code></td></tr><tr><td>Sui</td><td><code>0x9d297676e7a4b771ab023291377b2adfaa4938fb9080b8d12430e4b108b836a9::xaum::XAUM</code></td></tr><tr><td>Stellar</td><td><code>CC2RBGYNCFBCVENIDL5BFBWPH4OUZM2UA3OD2K2N54GLMWCC4KWPVAGO</code></td></tr><tr><td>Plume</td><td><code>0xA0C4F78A29ead4ABf6b7f5B3F0d05C0f3EAb8DDf</code></td></tr></tbody></table>

**Always verify contract addresses against our official website** [**www.matrixdock.com**](http://www.matrixdock.com) **and official documentation** [**https://matrixdock.gitbook.io/**](https://matrixdock.gitbook.io/)**.**

#### 6. Anti-Phishing Reminder

* Obtain XAUm contract addresses **only** through official Matrixdock channels.
* Matrixdock will **never** proactively ask you to transfer assets to any address via direct message, community chat, or support channel.
* If you encounter tokens, websites, or communities impersonating XAUm, please report them to us.

Thank you for your continued trust. Should you require further clarification or have any questions, please do not hesitate to reach out to our dedicated customer support team at <support@matrixdock.com>.

**Matrixdock Team**