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OTC Global Payment

Large volume crypto OTC desk, built on top of global banking system.


Send global payments to family, friends, and businesses 


Buy and sell stablecoin (USDC, USDC, BUSD) in large volume

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Get paid in USDT, USDC real-time globally and instant withdraw to bank

Our Core Business

Huge Volume Purchase

Buy and sell stablecoin (USDC, USDT) and cryptocurrency (BTC, ETH) in large quantities, up to 100,000,000 USD per transaction. 


Buy U 

Link the bank to transfer funds and receive digital dollar USDC, USDT.  Follow the wire instruction, and bank wire to: Circle Internet Financial LLC, digital dollar issuer as well as regulated and licensed company.  Your fund will settle as USD. 


Three steps: 1) Register, link bank; 2) Send bank wire per instruction; 3) Receive U.


Sell U 

Transfer in digital dollar USDC, USDT, link the bank, and receive payment in the bank, from Circle Internet Financial LLC, Silvergate Bank, USA.  We will send USD which will settle as local currency (HKD, SGD, Euro, etc) in your bank. 


Three steps: 1) Register, link bank; 2) Send U; 3) Receive money in bank.

Receive Global Payment


The client receives global payments in the form of digital dollars, swaps to US dollar in real time, and withdraw to the client’s linked bank.


The client entrusts iSunOne to receive a bank remittance from the sender, and receives digital dollars from iSunOne.

Send Global Payment


The client sends digital dollars to iSunOne who, on behalf of the client, swaps to the US dollar and bank wire to the recipient's bank.


The client entrusts iSunOne to receive a bank remittance and on client’s behalf, sends digital dollars to the recipient.

Use Cases

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Virtual Dollar Account
You could open an virtual digital dollar account with us, and send and receive real money to and from your individual and business contacts. 

Global Service 
We provide global service in 70+ countries and regions. Build on top of the Swift banking system, we offer a fast, secure, and private cross-border money transfer and global payment solution, easy conversion from fiat to crypto, and crypto to fiat.  


Open Bank Account
Our institutional banking partners will be able to remotely open a bank account for you in the time of need. You do not need to travel in this special time as technology bridges us together.  

Business Partner


Wanchai · VIP Clubhouse

Room 3209 ,  32th floor, Convention Plaza Office,1 Harbor Road, Wan Chai, Hong Kong

Mon - Fri  10 am - 6 pm

Chai Wan · Headquarter

7th Floor, Sino Favor Centre,

1 On Yip Street, Chai Wan, Hong Kong

Mon - Fri  10 am - 6 pm

Visit Our Offices

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Digital Dollar Wallet


Streaming service


Gateway Exchange

Guidance for New Customers

Why does P2P type OTC tend to trigger bank account freezing?

Because P2P means you are making a trade with a stranger, and stranger-to-strange bank transfers are highly likely to be flagged by banks’ anti-money laundering (AML) division. 

How do I avoid bank account freezing?

Use iSunOne’ OTC route, you send and receive money from the Circle Internet Financial LLC (Nasdaq: CND), a regulated financial institution and USDC issuer, with the Silvergate Bank (Nasdaq: SI), a licensed US commercial bank.  Both Circle and Silvergate are regulated licensed public financial institutions, and they are whitelisted by most free banks in the world. Therefore, your bank account is safe, by using iSunOne’s OTC route. 

May I register multiple bank accounts?

Yes, you may.  Each bank account needs to provide the KYC document. For KYC document details, please check here 

May I bank wire 10 million USD and consequently have the USDC deposited to multiple blockchain addresses?

Yes, you may.

May I send you 10 million USDT and consequently have the money deposited to multiple bank accounts?

Yes, you may. Each bank account needs to provide the KYC document. For KYC document details, please check here 

I am a bitcoin miner and I’d like to have a block trade of 1000 BTC to money. Could you help?

Yes, we’d love to help you. Our weekly volume is 1 million USD and we can satisfy the needs of most institutions and high net worth individuals.

How is your fee?

Our fee has a tiered structure depending on your volume, and we have a very competitive fee. In fact, we can offer a price match guarantee to offer you the lowest price, per any similar service you could find on the market.

I am in Mainland China and I have a bunch of U…

No problem. We can convert your U to money, and assist you in opening an overseas account. 

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Contact Us 

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