> For the complete documentation index, see [llms.txt](https://docs.coinchance.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coinchance.io/coinchance-launchsale/direct-participation/how-to-participate-in-tma-launchpad.md).
# How to Participate in TMA LaunchPad?
You can now seamlessly buy crypto and participate in CoinChance LaunchSale directly through the CoinChance Telegram Mini App by TON and Claim token on your ETH address on Base Chain.
1. Open the **CoinChance Telegram Mini App** [**https://t.me/ChanceDrip\_bot/join**](https://t.me/ChanceDrip_bot/join)
2. Navigate to **LaunchPad Tab**
3. Connect your **TON Wallet (TON Keeper)**
4. Enter your desired investment amount and click **Buy Now**
5. Review the note and click **Continue**
6. Click **Open Wallet**
7. Confirm the transaction in your wallet and you are all set!
## How to Claim Tokens?
1. Go to the **Claim Tab**
2. Enter your **ETH Address on BASE Chain** and confirm
3. **Import Custom Tokens!** Here is how:
* Open your wallet application, such as MetaMask.
* Switch to the **BASE network**.
* Click the three dots in the upper-right corner and select **Import Tokens**.
* Choose the **Custom Token** tab and enter the **CoinChance Token Contract Address 0xC04c38860091510E1C73556714031386B8748E3B**
* Click **Next**, then confirm by selecting **Import CHN Tokens**.
* Once completed, the CHN token will appear in your wallet's token list.
