Wrapped TRX (WTRX) is a TRC20 token on the TRON blockchain that represents the network’s native asset, TRX, in a wrapped format. Each WTRX token is designed to maintain a 1:1 ratio with TRX and is backed by an equivalent amount of TRX held in reserve. This format allows TRX to be used in applications that require token standard compatibility, particularly within decentralised finance (DeFi) protocols on TRON.

The smart contract associated with WTRX is deployed at TNUC9Qb1rRpS5CbWLmNMxXBjyFoydXjWFR, and operates as a custodian. When a user wraps TRX, it is sent to this contract, which issues the same quantity of WTRX. Conversely, unwrapping burns the WTRX and releases the original TRX.

WTRX exists to facilitate interoperability and usability of TRX in environments where the native coin cannot be used directly, especially in smart contracts and DApps that require standardised token interfaces.

WTRX is used within the TRON ecosystem to extend the utility of TRX across decentralised applications that require TRC20 tokens. Key use cases include:

• Trading on TRON-based DEXs: WTRX is supported on decentralised exchanges like SunSwap V2 and V3, where it can be traded against other TRC20 tokens. This allows for TRX-denominated liquidity within TRON’s token economy without requiring modifications to smart contracts that only accept TRC20 tokens.

• Liquidity provision: WTRX can be deposited into liquidity pools on platforms like SunSwap, allowing users to earn transaction fees and participate in liquidity mining programmes when available. WTRX is frequently paired with other TRC20 tokens to form the base of various liquidity pools.

• Access to DeFi protocols: By wrapping TRX into WTRX, users are able to interact with DeFi applications that require TRC20 compatibility. These may include lending, borrowing, staking or governance mechanisms where applicable.

• Conversion via official bridge: The platform at https://just.tronscan.org/#/trans, maintained within the just.network ecosystem, allows users to wrap and unwrap TRX into WTRX. This bridge provides a mechanism for conversion and further suggests the intended role of WTRX as a wrapper for general-purpose DeFi activity.

Wrapped TRX (WTRX) does not have a publicly declared issuing organisation, but several entities are directly involved in its infrastructure and operations:

• TRON Foundation: While not officially credited as the issuer, the WTRX token aligns with the TRON Foundation’s broader objective of increasing TRX’s usability in DeFi and smart contract environments.

• just.network: This ecosystem provides the official interface to convert TRX to WTRX. However, within the just.network protocols themselves (e.g., USDJ and JustLend), another wrapped version called PTRX is used as collateral, suggesting that WTRX serves a more general-purpose role beyond just.network's internal applications.

• Sun.io (SunSwap): WTRX is actively traded on SunSwap, which acts as the main decentralised exchange on TRON. Although there is no indication that Sun.io created WTRX, the token’s integration with SunSwap indicates close alignment with TRON’s DeFi infrastructure.

• Smart contract custodian: The contract at TNUC9Qb1rRpS5CbWLmNMxXBjyFoydXjWFR appears to be responsible for minting and burning WTRX in accordance with user deposits and withdrawals. It acts as the on-chain mechanism for maintaining the 1:1 parity between TRX and WTRX.

Within the just.network ecosystem, a separate token called PTRX is used as the wrapped form of TRX for protocol-specific use cases such as collateral for minting USDJ. PTRX also maintains a 1:1 peg with TRX but is issued for use in controlled scenarios within JUST applications. In contrast, WTRX appears to function as a more flexible and externally oriented wrapped asset for general DeFi use, especially in trading and liquidity provisioning.

This distinction is important for users navigating between different TRX-wrapped tokens in the TRON ecosystem. While both PTRX and WTRX represent TRX, their scope of use and platform compatibility differ.