> NOTE: This is crossposted at [Bifrost Governance Forum](https://forum.bifrost.finance/t/open-hrmp-channel-between-bifrost-karura-and-statemine/1601)

According to Statemine’s [latest progress](https://github.com/paritytech/cumulus/pull/806), unidirectional cross-chain (Statemine => Bifrost) may be a doable way in short term. Bifrost hopes to give priority to establishing a unidirectional HRMP channel with Stamine in order to bring more assets such as USDT and other external assets into parachain ecology.

## Bifrost Uses Cases
Kusama needs more external assets to meet the needs of users. For Bifrost, completing the cross-chain with Statemine will push us to achieve the following application scenarios:

**Issue vToken to external POS chain**

In the future, more public chains may choose to issue their own native tokens on Statemine, and Bifrost will make liquid derivatives for the native tokens of external PoS chains, such as vSOL, vAVAX, etc.

**vsToken bond market**

vsToken liquidity derivatives have contract properties. With sufficient assets, users will have demand for derivatives such as borrowing, leverage, and bonds. In the future, the combination of vsToken + vsBond will have a clear exercise period, and users are able to realize bond trading.

**Add more trading pairs to Zenlink DEX**

Bifrost parachain has integrated Zenlink DEX Pallet. Assets will create more trading pairs in Zenlink, and use Bifrost and other parachain HRMP channels to complete multi-chain routing to connect the liquidity between different layer-1.

## Proposal

Due to the [issue](https://github.com/paritytech/cumulus/issues/827), it is not yet possible to reserve transfer assets back to Statemine. There are several pull requests related including [806](https://github.com/paritytech/cumulus/pull/806), [4470](https://github.com/paritytech/polkadot/pull/4470), [833](https://github.com/paritytech/cumulus/pull/833), trying to resolve this but seems not finalized yet, so we may start with Statemine → Bifrost unidirectional channel first.

Also notice that [proposal](https://kusama.polkassembly.io/post/1193) raised by Acala already, maybe we can make multiple channel initialized open requests in a batch call.

## Reference

- [Open HRMP channel between Bifrost and Karura parachain](https://forum.bifrost.finance/t/6-referendum-proposal-open-hrmp-channel-between-bifrost-and-karura-parachain/179)
- [Open HRMP channel between Karura and Statemine](https://acala.discourse.group/t/open-hrmp-channel-between-karura-and-statemine/451)

- Bifrost wants to establish a cross-chain connection with Statemine to bring more assets into the Kusama ecosystem.
- This will allow Bifrost to issue tokens from other chains on Statemine and create derivatives for them.
- It will also help add more trading pairs to the Zenlink DEX and connect liquidity between different layer-1 chains.
- There are some technical issues that need to be resolved before the cross-chain connection can be fully established.
- A proposal has been made to make multiple channel requests in a batch call.

#1208 Open HRMP channel between Bifrost/Karura and Statemine