/**
 *Submitted for verification at Etherscan.io on 2018-10-24
*/

pragma solidity 0.4.24;

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
interface IERC20 {
  function totalSupply() external view returns (uint256);

  function balanceOf(address who) external view returns (uint256);

  function allowance(address owner, address spender) external view returns (uint256);

  function transfer(address to, uint256 value) external returns (bool);

  function approve(address spender, uint256 value) external returns (bool);

  function transferFrom(address from, address to, uint256 value) external returns (bool);

  event Transfer(address indexed from, address indexed to, uint256 value);

  event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
 * @title SafeMath
 * @dev Math operations with safety checks that revert on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, reverts on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
    if (a == 0) {
      return 0;
    }

    uint256 c = a * b;
    require(c / a == b);

    return c;
  }

  /**
  * @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b > 0); // Solidity only automatically asserts when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
  }

  /**
  * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a);
    uint256 c = a - b;

    return c;
  }

  /**
  * @dev Adds two numbers, reverts on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a);

    return c;
  }

  /**
  * @dev Divides two numbers and returns the remainder (unsigned integer modulo),
  * reverts when dividing by zero.
  */
  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0);
    return a % b;
  }
}

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure.
 * To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
  function safeTransfer(IERC20 token, address to, uint256 value) internal {
    require(token.transfer(to, value));
  }

  function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
    require(token.transferFrom(from, to, value));
  }

  function safeApprove(IERC20 token, address spender, uint256 value) internal {
    require(token.approve(spender, value));
  }
}

/**
 * @title TokenTimelock
 * @dev TokenTimelock is a token holder contract that will allow a
 * beneficiary to extract the tokens after a given release time
 */
contract TokenTimelock {
  using SafeERC20 for IERC20;

  // ERC20 basic token contract being held
  IERC20 private _token;

  // beneficiary of tokens after they are released
  address private _beneficiary;

  // timestamp when token release is enabled
  uint256 private _releaseTime;

  constructor(IERC20 token, address beneficiary, uint256 releaseTime) public {
    // solium-disable-next-line security/no-block-members
    require(releaseTime > block.timestamp);
    _token = token;
    _beneficiary = beneficiary;
    _releaseTime = releaseTime;
  }

  /**
   * @return the token being held.
   */
  function token() public view returns(IERC20) {
    return _token;
  }

  /**
   * @return the beneficiary of the tokens.
   */
  function beneficiary() public view returns(address) {
    return _beneficiary;
  }

  /**
   * @return the time when the tokens are released.
   */
  function releaseTime() public view returns(uint256) {
    return _releaseTime;
  }

  /**
   * @notice Transfers tokens held by timelock to beneficiary.
   */
  function release() public {
    // solium-disable-next-line security/no-block-members
    require(block.timestamp >= _releaseTime);

    uint256 amount = _token.balanceOf(address(this));
    require(amount > 0);

    _token.safeTransfer(_beneficiary, amount);
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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