> For the complete documentation index, see [llms.txt](https://docs.wing.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wing.finance/guide-1/polynetwork-cross-chain-transfer/with-cyano-on-pc.md).

# With Cyano on PC

*Cross-chain transfers require gas fees. Assets across different chains use different types of assets as gas fees. Please prepare the corresponding gas fees in advance to avoid transaction failure.*

Gas fee type:

Ontology → Ethereum: ONG + a small amount of assets to be transferred

Ontology → OEC: ONG + a small amount of assets to be transferred

Ontology → Neo: ONG + a small amount of assets to be transferred

Ethereum → OEC: ETH

Ethereum → Ontology: ETH

OEC → Ontology: OKT

OEC → Ethereum: OKT

Neo → Ontology: nNEO + GAS

*For Ethereum related transaction, the gas fee is around 10-12 times of Ethereum med gas fee cost.*

In this tutorial, we illustrate the process by transferring Ontology-based WING tokens to OKExChain-based WING tokens.

![](/files/-Mcx43RBv-Zz03XVrWga)

Open the Wing official [website](https://wing.finance/), click "**Asset Swap**" in the upper right corner, select "**PolyNetwork**", and enter the **PolyNetwork** cross-chain bridge page.

You can also visit <https://bridge.poly.network/> directly.

![](/files/-Mcx4YYiWWornVttNhjX)

Click the asset selection box under "**Asset**", and enter the asset to be transferred in the“**Select Asset**” search box. Enter "WING" and select it below.

![](/files/-Mcx4j_TNM0sKjBigxD5)

![](/files/-Mcx4qa06pyzh_wLkAf1)

Click "**From Network**" to select the asset’s corresponding network (in this case, it is Ontology). Then click "**To Network**" to select the network to transfer to (e.g. OKExChain).

![](/files/-Mcx59NZBtZrQKQ-HEcX)

Enter the amount of assets to be transferred in the "**Amount**" box, and then click "**CONNECT WALLET**". On the pop-up wallet connection page, select the corresponding wallet connection. In this example, we need to connect Cyano and MetaMask.

![](/files/-Mcx5Rhx6ebwSO1xGLbh)

![](/files/-Mcx43RMROMQ27M_7nn3)

Click "**NEXT**", and then click "**CONFIRM**" after confirming the information in the pop-up window. Then confirm the information in the wallet pop-up window to initiate the transaction. You can then view the transaction’s status on the “Transaction Details”page. The transfer is complete when "**Finished**" is displayed.