Coinone: licences, security, fees and reviews
Centralized exchange
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Key facts
- Type
- Centralized exchange
- Country of registration
- South Korea
- Operator
- Coinone Inc. (주식회사 코인원)
- Official site
- coinone.co.kr
Key facts checked on 28 October 2026 against official sources and regulator registers.
What is Coinone
Coinone is a centralised virtual asset exchange in South Korea, run at coinone.co.kr by Coinone Inc. (주식회사 코인원), a company founded in February 2014. It has a Korean won (KRW) market, with won deposits and withdrawals through KakaoBank.
Good to know
- Coinone's Korean status is a registration (신고) with the Financial Intelligence Unit (FIU) as a virtual asset service provider; 주식회사 코인원 is on the FIU list of registered providers as of 30 September 2026. ↗
- The FIU registration was decided on 12 November 2021, according to Coinone; the FIU register shows the first certificate date as 25 November 2021. ↗
- The three-month partial suspension in 2026 (29 April – 28 July) only limited external virtual asset transfers for new customers; trading and won deposits and withdrawals continued. ↗
- Each stablecoin is supported on one network only: USDT on Tron (TRC-20), USDC on Solana, USDS and USDE on Ethereum, USD1 on BNB Smart Chain, RLUSD on XRPL (with memo). ↗
- The base trading fee is 0.25%; since 26 August 2026 a free fee voucher sets maker and taker fees to 0% until further notice. ↗
- Since 29 February 2024, won deposit and withdrawal limits depend on the account type under the banks' real-name account guideline: a limited account (한도계정) or a normal account (정상계정). ↗
- When KakaoBank replaced NH NongHyup Bank on 29 November 2022, all customer won deposits were moved to KakaoBank. ↗
- Personal-wallet registration by electronic signature works only with MetaMask on EVM networks; Tron and Solana addresses, the networks Coinone uses for USDT and USDC, cannot be registered this way. ↗
- Coinone's travel-rule solution is CODE; its help centre publishes the list of providers it can send virtual assets to (as of 16 September 2026). ↗
Services
| Parameter | Details |
|---|---|
| Spot trading | KRW market with stablecoins USDT, USDC, USD1, USDE, USDS and RLUSD (October 2026). |
| Fiat deposits | KRW deposits and withdrawals through a real-name account at KakaoBank (카카오뱅크). |
| Interest on KRW balances | Interest on KRW deposits (예치금 이용료): 1.77% a year before tax. |
| Custody / wallet | Crypto deposits and withdrawals, one network per coin: USDT on Tron, USDC on Solana, USDS and USDE on Ethereum, USD1 on BNB Smart Chain, RLUSD on XRPL. |
Licences and registrations
| Jurisdiction | Entity | Licence / registration | Regulator |
|---|---|---|---|
| South Korea | 주식회사 코인원 (Coinone Inc.) | Registered virtual asset service provider (가상자산사업자); business registration no. 261-81-07437; filed 10 September 2021, first certificate 25 November 2021 (register, 30 September 2026). | Financial Intelligence Unit (금융정보분석원, FIU) |
| South Korea | 주식회사 코인원 (Coinone Inc.) | Real-name verified deposit and withdrawal account (실명확인 입출금계정) partner bank: KakaoBank (카카오뱅크). | — |
Status in the United States and the United Kingdom
- Coinone does not appear in the FCA’s Financial Services Register: a search for “Coinone” on 28 October 2026 returned no firm, so neither Coinone Inc. nor any other firm with “Coinone” in its name is listed there. FCA Financial Services Register
- A search of the FCA website for “Coinone” on 28 October 2026 returned no results. FCA website search
- Under the UK Money Laundering Regulations 2017, cryptoasset businesses must register with the FCA before providing in-scope cryptoasset services in the course of business carried on in the UK. FCA: cryptoassets AML/CTF regime
- Coinone is not on the New York DFS list of regulated virtual currency entities (checked 28 October 2026). In New York, virtual currency business activity requires a BitLicense or a charter under the New York Banking Law. NYDFS: virtual currency businesses
Checked on 28 October 2026 against regulator registers and the text of the law.
Proof of reserves as of August 2026
| Asset | Reserve ratio |
|---|---|
| Virtual assets covered by the report | 100.1% |
Method: Due-diligence report (실사보고서) by an external accounting firm, 대주회계법인, comparing virtual asset holdings with member deposits; daily reconciliation results are also published. 대주회계법인 ↗
Security and audits
- ISMS-P certification from KISA (ISMS-P-KISA-2024-054) for the trading service, valid 4 December 2024 – 3 December 2027.
- Daily reconciliation of virtual asset balances, published in a notice that is updated each day.
- Withdrawal delays against financial fraud: no virtual asset withdrawals for 72 hours after the first won deposit, and a 24-hour withdrawal delay after every won deposit.
- Users can lock their own account, blocking logins and virtual asset withdrawals.
- New Open API keys need registered IP addresses from 7 May 2026; existing keys from 5 August 2026.
Fees
| Parameter | Details |
|---|---|
| Spot maker / taker | 0.25% in the KRW market (base rate, 1 October 2026). |
| Spot (promotion) | 0% maker and taker with a free fee voucher, from 26 August 2026 until further notice (app and web orders). |
Who can use it
- Verification: Won deposits and withdrawals require a real-name account at KakaoBank. A limited account (한도계정) can deposit 5 million won a day and withdraw 50 million won at a time or 200 million won a day; a normal account (정상계정) 100 million won at a time and 500 million won a day.
History
| Date | Event |
|---|---|
| February 2014 | Coinone Inc. is founded. |
| 12 November 2021 | The FIU decides to accept Coinone's registration as a virtual asset service provider (filed 10 September 2021). |
| 29 November 2022 | KakaoBank replaces NH NongHyup Bank for KRW deposits and withdrawals. |
| 30 November 2023 | USDT is added to the KRW market. |
| 29 February 2024 | Won limits under the banks' real-name account guideline take effect, with limited (한도계정) and normal (정상계정) accounts. |
| 28 March 2024 | USDC is added to the KRW market. |
| April 2025 | The FIU carries out an on-site anti-money-laundering inspection of Coinone (21 April – 16 May 2025). |
| 13 April 2026 | The FIU sanctions committee decides on a three-month partial business suspension and decides to impose a fine (과태료) of 5.2 billion won for anti-money-laundering breaches. |
| May 2026 | ㈜컴투스홀딩스 discloses a decision to sell part of its Coinone stake, which would leave it 11.9% (planned closing 10 June 2026). |
| 7 May 2026 | New Open API keys must be bound to registered IP addresses; existing keys have until 5 August 2026 to register them. |
| 26 August 2026 | A free fee voucher sets maker and taker fees to 0% until further notice. |
Risks and caveats
- On 13 April 2026 the FIU decided on a three-month partial business suspension (29 April – 28 July 2026) and decided to impose a fine (과태료) of 5.2 billion won; it also decided on a reprimand warning (문책경고) for the CEO.
- The FIU found about 90,000 breaches of the 특정금융정보법, including 10,113 virtual asset transfers with 16 unregistered foreign providers.
- Each coin is supported on one network only, so the network must be checked before a transfer.
- The FIU also found that Coinone completed customer identity checks on printed or photocopied ID cards or re-photographed images instead of originals.
About the company
- Legal entity
- 주식회사 코인원 (Coinone Inc.)
- Founded
- February 2014 (company)
- CEO
- 차명훈 (representative in the FIU register, 30 September 2026)
- Headquarters
- Yeouidae-ro 108, Yeongdeungpo-gu, Seoul, South Korea
- Major shareholders
- ㈜더원그룹 34.30%, ㈜컴투스홀딩스 21.95% (31 December 2025)
- Ownership change
- ㈜컴투스홀딩스 decided in May 2026 to sell part of its stake (planned closing 10 June 2026), which would leave it 11.9%.
Official links
- Website: coinone.co.kr
- Proof of reserves: coinone.co.kr/info/notice/5779
- Fees: coinone.co.kr/info/notice/5695
- Licences: www.kofiu.go.kr/kor/notification/notice_view.do?ntcnYardOrdrNo=194&seCd=0007
Questions and answers
Is Coinone regulated?
Coinone Inc. is registered with Korea's Financial Intelligence Unit (FIU) as a virtual asset service provider (first certificate 25 November 2021). In April 2026 the FIU decided on a three-month partial suspension and decided to impose a 5.2 billion won fine.
Does Coinone publish proof of reserves?
Yes. An external accounting firm's report for August 2026 showed 100.09% of members' virtual assets held (20 assets checked), and daily reconciliation results are published.
What are Coinone's fees?
The base trading fee is 0.25% (1 October 2026); since 26 August 2026 a free voucher sets it to 0% until further notice.
Who owns Coinone?
At the end of 2025 the largest shareholders were ㈜더원그룹 (34.30%) and ㈜컴투스홀딩스 (21.95%); in May 2026 컴투스홀딩스 decided to sell part of its stake (planned closing 10 June 2026), which would leave it 11.9%.
Which stablecoins does Coinone list?
The KRW market has USDT, USDC, USD1, USDE, USDS and RLUSD (October 2026), each on one network: USDT on Tron, USDC on Solana, USDS and USDE on Ethereum, USD1 on BNB Smart Chain, RLUSD on XRPL.
How long are withdrawals held after a won deposit?
Virtual asset withdrawals are blocked for 72 hours after the first won deposit; a 24-hour withdrawal delay applies after every won deposit.
What are Coinone's won deposit and withdrawal limits?
They depend on the KakaoBank account type: a limited account (한도계정) can deposit 5 million won a day, a normal account (정상계정) up to 500 million won a day.
Sources
- Korea Financial Intelligence Unit — virtual asset service provider register (30 September 2026)
- Coinone — notice
- Financial Services Commission — press release
- Coinone — help center
- Coinone — fee voucher notice
- Coinone — help center: withdrawal limits
- Coinone — notice
- Coinone — public API
- DART (Financial Supervisory Service) — corporate filing
- Coinone — notice
- Coinone — due-diligence report notice
- KISA — ISMS-P certification register
- Coinone — daily reconciliation notice
- Coinone — help center
- Coinone — help center
- Coinone — notice
- DAXA — trading fee comparison
- Coinone — notice
- Coinone — notice
- DART (Financial Supervisory Service) — corporate filing
- DART (Financial Supervisory Service) — corporate filing
- Coinone — personal wallet registration notice
- Coinone — help center: 72-hour withdrawal delay
- Coinone — help center: travel rule providers list
- FCA Financial Services Register
- FCA website search
- FCA: cryptoassets AML/CTF regime
- NYDFS: virtual currency businesses
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