Coinone exchange profile: Korean won trading, borrowing and account access

Coinone is a centralised Korean exchange whose customer journey is organised around won balances, verified bank access and a spot order book. Its service mix also includes scheduled purchases, automated grids, crypto borrowing and staking. This profile covers the Korean operator, 주식회사 코인원 (Coinone, Inc.); a partnership with an overseas exchange does not make its Korean account an international account.[1][27]

Recurring purchases execute market orders on the chosen schedule. The July 2026 terms make a +3% slippage setting the default, allow up to 20 plans and cap each plan at KRW 5 million. Cancelling a plan stops future instructions; an already generated order may still execute. Automatic bank replenishment is a separate consent: pausing or ending a purchase plan does not itself cancel that permission, and a transfer already attempted can still complete. These distinctions matter when stopping an automated strategy.[29]

AI Grid allocates money to a separate portfolio and places buys and sells within a selected range. Outside that range it stops adding orders, leaving exposure to the assets already held. On termination, the remaining crypto and won return in their existing form to the main portfolio. Account locks, verification problems, bank disconnection and certain tax-information restrictions can stop a bot automatically. The published controls describe a bounded automated strategy; they do not establish discretionary management of the customer’s entire account.[28]

Coinone replaced its old 0.20% ordinary tariff with 0.25% on 30 July 2026. It also ended the former five-level VIP fee benefits and stopped selling Early Bird fee packages. Current VIP selection is internal and quarterly, with a dedicated hotline retained. Older tier tables therefore do not describe the present ordinary trading offer.[37]

Zero commission is conditional on the route and a current promotion. A voucher expiring can restore the base fee, and its former volume-based payback does not accumulate on free trades. A market order can also incur price slippage even when its explicit commission is zero.[7]

Won deposits and withdrawals use the customer’s verified KakaoBank account. Both the bank and Coinone must complete customer checks. The funding guide accepts a personal ordinary account, excluding mini, business and stopped accounts, and links a bank account to one Coinone account. Requests use Kakao or Naver authentication. An open buy order can reserve won that appears in the overall balance but cannot yet be withdrawn.[10]

The bank classification and the customer’s Coinone withdrawal setting are separate controls: the lower applicable ceiling governs. Coinone’s daily guide sets an initial KRW 100 million withdrawal setting and resets daily limits at 00:00 Korean time. Available crypto also depends on holdings less fees and committed amounts, the value affected by deposit delays, and remaining daily capacity. A headline account balance consequently does not establish an immediately transferable amount.[12]

These are separate minimum-quantity and fee fields from the inspected tariff. Fees can exceed a quoted minimum, so the account needs enough for the requested amount and applicable charge. Network availability can change independently of whether an asset remains tradeable.

Promotional points need separate treatment from deposited cash. The current campaign terms allow conversion at 1 point per won, with 10–50,000 points per conversion and 90-day point validity, but the converted won cannot immediately be withdrawn. Borrowing collateral, pending orders and transfer holds create other distinct restrictions; none should be treated as freely available cash simply because an account displays a value.[9]

Self-service closure is blocked while won is at least KRW 5,000 or crypto meets its minimum withdrawal amount plus fee. The account must authenticate closure, and support provides a separate review route when self-service cannot be used. Its guide also describes consent to extinguishing residual assets: this is a substantive choice, not an automatic cash withdrawal. Verified customers cannot complete fresh KYC within 24 hours after leaving; repeated closure can produce a longer rejoining restriction.[15]

Coinone holds assets in its own custodial system. Its September publication reports a DAEJOO review of 20 selected assets at the end of August, rather than a continuously updated assurance over every asset. The accompanying agreed procedures report dates the snapshot to 31 August 2026 and says the selected assets represented 95.85% of the value of 562 asset types held for users. Those custody counts do not represent 562 currently tradeable markets.[16][17]

The report reconciled hot and cold wallet quantities against customer database balances and tested control of selected wallets by small transfers. It reported 100.09% coverage on a won-valued basis for the selection. DAEJOO expressly states that this work is neither an audit nor a financial-statement review and gives no assurance opinion. It cannot establish the group’s complete liabilities, protection of every wallet or future solvency.[17]

The staking FAQ describes cold-wallet controls and estimated rewards, but expressly says rewards are not guaranteed and the product is not a protected financial product under the cited Korean capital-market and financial-consumer statutes. A currently accessible policy certificate establishing a per-customer insured amount was not found. The historical insurance announcement alone is insufficient to assign every account an insurance limit.[35][26]

Tax-information restrictions can force borrowing repayment, pause recurring purchases and replenishment, and stop automated bots. Completion of submission and review removes the restriction, but recurring orders require the customer to restart them. This is an operational dependency, not merely an administrative form to complete after trading.[22]

Coinone’s expedited internal-system complaint process requires a qualifying unannounced failure affecting both app and web, lasting at least 30 seconds, with demonstrable financial loss caused by that fault. External network failures, ordinary delayed transfers and hypothetical missed profits are among the exclusions. Request the form through customer support and submit within seven business days of the incident; the stated review-result period is 60 days from receipt. The support number is not documented as a telephone order-execution facility.[24]

Long inactivity or unusual access patterns can lead to reduced crypto withdrawal capacity or restrictions, with support needed to restore it. That rule is distinct from a recurring inactivity charge; the inspected materials did not establish a general monthly inactivity tariff. Withdrawal limits can be changed only twice daily and depend on completed identity, phone, additional-channel and bank checks.[36]

Coinone’s corporate chronology records acceptance of its VASP report by KoFIU in November 2021. The current KoFIU directory surfaced a September 2026 reporting update, but the opened dynamic register did not expose the underlying company entry for inspection. This profile therefore does not present an independently matched current registration number. That access limitation is not a finding that the operator is unregistered, and a Korean AML reporting status would not establish worldwide customer eligibility.[26][38]

In an action decided on 13 April 2026 and published on 14 April, FIU identified failures involving transfers to unreported overseas VASPs, customer identification and required transaction restrictions. It ordered three months of limited suspension for 29 April–28 July: only new customers’ external crypto transfers were covered, while trading and won transfers could continue. The announcement proposed KRW 5.2 billion in administrative penalties, with representations before the amount was finalised, and reprimanded the chief executive. Those stated dates have passed; they should not be described as an October exchange closure. The inspected release does not establish a later final penalty or appeal outcome.[25]

Coinone began exchange service in October 2014, following incorporation as Divine Lab earlier that year; the corporate name changed in February 2016. Its Korean bank integration, transfer controls and order services define the account covered here. The corporate site’s older global rankings are historical marketing milestones, not evidence of its current market share or active customer count. No comparable current active-user figure was established from the primary material used for this profile.[26][1]

On 12 October 2026 Coinone announced Korea Investment Securities as an investor and strategic partner, and OKX as a partner connected to its global infrastructure. The notice does not quantify ownership or announce that customers are transferred to an OKX contracting entity. It is consequently treated as a company development within the continuing Coinone profile.[27]

Operator

주식회사 코인원 (Coinone, Inc.)

Exchange model

Centralised

Service scope

Korean won spot exchange, automated orders, cash-collateralised crypto borrowing and staking. Corporate access is restricted to documented approved categories.

Client types

Retail clients; Institutional clients

Pricing publication

Public pricing

Other names

코인원; Coinone, Inc.

Headquarters

Seoul, South Korea

Covered jurisdictions

South Korea

Pricing scope

Direct web/app voucher, personal API and borrowing promotions have separate terms and exclusions.

Funding scope

Won through verified KakaoBank accounts; supported crypto networks and approved transfer routes, subject to bank limits and deposit-related waiting periods.

Custody and asset handling

Custodial wallets; selected-asset agreed procedures report at 31 August 2026. Fixed staking and borrowing collateral have distinct access restrictions.

Client eligibility

KYC and real-name bank requirements apply; individuals must be at least 19. The foreign-user FAQ restricts practical access; corporate accounts have category and sale-only limits.

Support

Official support portal and 1670-9756, weekdays 10:00–19:00 Korean time. Separate incident-claim and certificate procedures.

Authorisation and registration scope

Company chronology records KoFIU acceptance in 2021. Current register-entry detail was not retrievable. The April 2026 FIU action had a limited, dated transfer scope; no worldwide permission is inferred.

Exchange metadata checked 20 Oct 2026Source 1Source 4Source 17Source 20Source 21Source 23Source 25Source 26Source 29

The public API exposes market information. Private keys can separately permit balance, customer, transfer-history and order-history access, order placement/cancellation, and withdrawals. Crypto withdrawal permission reaches only the main portfolio. Each key must have public IPv4 addresses whitelisted, with at most five addresses. These controls make an external integration’s granted authority important independently of whether its fee rate resembles direct personal API trading.[30]

The account’s daily chart and percentage-change reference use 09:00 Korean time, whereas daily withdrawal capacity resets at midnight. External crypto deposits enter the displayed purchase-cost calculation at the price when received. These are platform accounting conventions; they should not be mistaken for the original acquisition price or a completed tax calculation.[3][12]