> 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?
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.