The collapse of the Terra ecosystem in May 2022 led to a hard fork, creating two distinct assets: the new Terra (LUNA) and the old Terra Classic (LUNC), originally known as LUNA. For many users, the question remains: how do you manage the old LUNA tokens sitting on the Binance Smart Chain (BSC) or the Terra Classic chain? This guide provides a clear, technical walkthrough for depositing old LUNA (LUNC) into a supported exchange and subsequently withdrawing it.

First, it is crucial to understand the nature of your old LUNA. If your tokens are on the Binance Smart Chain (BSC, BEP-20), they are wrapped or bridged versions of the Terra Classic token. Not all exchanges support the BEP-20 format for LUNC. Therefore, the most reliable method is to send them to the native Terra Classic blockchain (Terra Classic, also known as Columbus-5). While Binance does not natively support the old LUNA on its standard deposit page for the new LUNA, it heavily supports LUNC. If you hold old LUNA on the Binance Chain, the process typically involves sending it to a wallet like Trust Wallet or MetaMask, then swapping it via a bridge (e.g., the official Terra Bridge or a DEX on BSC) directly into LUNC on the Terra Classic mainnet. Once your tokens are on the Terra Classic chain (denominated as USTC, LUNC, or LUNC classic), they can be sent to a centralized exchange that lists LUNC.

To deposit into an exchange like Binance, KuCoin, or OKX, follow these steps on the exchange’s platform:

1. Log into your exchange account and navigate to the "Deposit" section.
2. Search for "LUNC" or "Terra Classic". Ensure you select the correct token and network (usually "Terra Classic" or "LUNC"). Do not select "Terra 2.0" (new LUNA) or "BEP-20" unless you have specifically confirmed the exchange supports that network for LUNC.
3. The exchange will provide you with a Terra Classic wallet address (a long string starting with "terra1...").
4. Open your wallet or platform where the old LUNA currently resides (e.g., Terra Station, MetaMask with Terra Classic network, or a hardware wallet). Initiate a withdrawal to the provided address. Confirm the network fee (usually paid in LUNC or a small amount of USTC).

If you cannot locate an address on the exchange, it likely means your old LUNA is still on the Binance Smart Chain. In that case, you must bridge it first. For example, if you have old LUNA (BEP-20) in MetaMask, go to the official Terra Bridge website (earth.money/bridge or similar). Connect your wallet, select BSC as the source network, and Terra Classic as the destination. Approve the transaction and pay the BNB gas fee. After the bridge completes, your LUNC will appear on the Terra Classic chain in your wallet. You can then send it directly to the exchange.

Withdrawing old LUNA (LUNC) from an exchange is simpler. On the exchange, go to "Withdraw," select "LUNC," and choose the "Terra Classic" network. Enter the recipient's Terra Classic address and the amount. Confirm the transaction fee (usually in LUNC). The withdrawal will be processed on the Terra Classic blockchain.

Key warnings: Always double-check the network and token contract. Sending old LUNA (LUNC) to a new LUNA (Terra 2.0) address will result in a loss of funds. Similarly, sending to a BSC address without using a bridge will result in unrecoverable tokens. The Binance Chain supports LUNC deposits only via the Terra Classic network and, in some cases, via BSC. However, for the old LUNA that still says "LUNA" and not "LUNC" in your wallet, always verify the token contract against the official LUNC contract on coinmarketcap.com or coingecko.com before attempting a deposit. The safest path for the vast majority of users is to bridge to the Terra Classic mainnet first, then deposit from that chain to the exchange. This ensures maximum compatibility and minimizes the risk of failed transactions.

Lastly, be aware of the chain ID and memo. Most Terra Classic deposits do not require a memo for standard deposits to major exchanges like Binance, but some smaller or decentralized platforms might. If the exchange requires a tag or memo, you must enter it exactly as provided. Failure to do so will cause a permanent loss of funds. Network fees on the Terra Classic chain are typically very low (a fraction of a USTC or a few LUNC), making it an economical choice for both deposits and withdrawals.