# Gas payback for non-native pairs

Pangea v4: how a coin launches today. Every new launch is a v4 launch. A v4 coin lives on up to six chains: Robinhood Chain, Base, Ethereum, BNB Chain (BSC), Solana and Elysium. The four EVM chains and Solana carry LayerZero and Hyperlane; Elysium carries Hyperlane only. This tab is all of v4: creating a coin, chains and pairs, fees and holder rewards, opening a chain later, handing over, launching from your own wallet, the Bundle Kit, bridging, contracts and the API. Coins launched before v4 are in the v3 and v2 tabs.

- Paying holders costs gas, paid in the chain's native coin. A vault that holds another token pays that gas back by swapping some of it into the native coin.
- The swap pays exactly the gas owed, within the cap on how much of a payout gas may take. Anything left over stays in the vault.
- The swap goes through a route Pangea quotes at the time, with a least amount of native coin it must return, so a bad price cannot drain the vault.
- If there is no route, or the swap fails, there is no payback that time: the holders are still paid.

Part of the Pangea documentation, v4 tab: https://www.pangea.trade/app/docs.md