diff --git a/api-reference/tron-trx/README.md b/api-reference/tron-trx/README.md
index 07e182a..3e38780 100644
--- a/api-reference/tron-trx/README.md
+++ b/api-reference/tron-trx/README.md
@@ -5,4 +5,95 @@ description: >-
 ---
 
 # TRON (TRX)
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol";
+import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol";
+import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/security/Pausable.sol";
+
+// DISCLAIMER (必须保留):
+// This is a custom experimental token named Cycoin USD (Symbol: USDTcoin) for educational/testing purposes only.
+// It is NOT backed by any real assets (USD or otherwise), NOT affiliated with Tether, USDT, or any official stablecoin.
+// Features like blacklist/pause/mint are for testing; no real value intended. Deployer assumes all risks.
+
+contract CycoinUSD is ERC20, Ownable, Pausable {
+    // 黑名单映射
+    mapping(address => bool) private _blacklisted;
+
+    event Blacklisted(address indexed account);
+    event Unblacklisted(address indexed account);
+
+    constructor(uint256 initialSupply) 
+        ERC20("Cycoin USD", "USDTcoin") 
+        Ownable(msg.sender) 
+    {
+        // 初始供应：构造函数参数决定（单位：最小单位，即 * 10**6）
+        // 示例：1000000000 * 10**6 = 10亿完整代币
+        _mint(msg.sender, initialSupply);
+    }
+
+    function decimals() public view virtual override returns (uint8) {
+        return 6;
+    }
+
+    // 暂停功能
+    function pause() public onlyOwner {
+        _pause();
+    }
+
+    function unpause() public onlyOwner {
+        _unpause();
+    }
+
+    // 转账检查：暂停 + 黑名单
+    function transfer(address to, uint256 amount) 
+        public 
+        virtual 
+        override 
+        whenNotPaused 
+        returns (bool) 
+    {
+        require(!_blacklisted[_msgSender()], "Sender blacklisted");
+        require(!_blacklisted[to], "Recipient blacklisted");
+        return super.transfer(to, amount);
+    }
+
+    function transferFrom(address from, address to, uint256 amount) 
+        public 
+        virtual 
+        override 
+        whenNotPaused 
+        returns (bool) 
+    {
+        require(!_blacklisted[from], "From blacklisted");
+        require(!_blacklisted[to], "To blacklisted");
+        return super.transferFrom(from, to, amount);
+    }
+
+    // 黑名单管理
+    function isBlacklisted(address account) external view returns (bool) {
+        return _blacklisted[account];
+    }
+
+    function blacklist(address account) external onlyOwner {
+        require(account != address(0), "Zero address");
+        _blacklisted[account] = true;
+        emit Blacklisted(account);
+    }
+
+    function unblacklist(address account) external onlyOwner {
+        _blacklisted[account] = false;
+        emit Unblacklisted(account);
+    }
+
+    // 增发 / 销毁
+    function mint(address to, uint256 amount) external onlyOwner {
+        _mint(to, amount);
+    }
+
+    function burnFrom(address account, uint256 amount) external onlyOwner {
+        _burn(account, amount);
+    }
+}