A ₩76 trillion collusion case — Korea moves on its treasury dealers
Korea's FTC opened deliberations against 10 brokerages and 5 banks over treasury-auction collusion tied to ₩76.2tn
The three lines
- FTC examiners allege bid-rigging and information exchange in treasury auctions from 2020 to mid-2023
- The 15 firms are Korea's primary dealer core; relevant sales are set at ₩76.2 trillion
- 'Very grave violation' status allows fines up to 20% of relevant sales — the industry calls it excessive
Key questions
- What is the Korean treasury collusion case
- Korea's Fair Trade Commission alleges that primary dealers — the firms licensed to buy government bonds at auction — colluded and exchanged bid information from January 2020 to June 2023. Examiners set the relevant sales base at the full winning-bid amount of ₩76.2 trillion (about $55bn) and recommended corrective orders, fines and criminal referrals of executives.
- Which firms are involved
- Ten brokerages — Kyobo, Daishin, Meritz, Mirae Asset, Samsung, Shinhan, NH Investment, KB, Korea Investment and Kiwoom — and five banks: KB Kookmin, NongHyup, IBK, Hana and KDB. That is close to the entire core of Korea's primary dealer system.
- Could the fine really reach trillions of won
- Arithmetically yes. Korean law allows fines up to 20% of relevant sales for the gravest violations, which computes to ₩15 trillion, and press estimates run ₩11-15 trillion. In practice, deliberations usually reduce the final number substantially. The industry argues the primary-dealer system's obligations make ordinary bid-rigging standards inappropriate.
If there was collusion in the market where a government borrows, everyone paid for it. Korea's Fair Trade Commission has opened deliberations against ten brokerages and five banks over alleged bid-rigging in treasury bond auctions. The examiners' relevant-sales figure alone — ₩76.2 trillion, roughly $55 billion — makes this one of the largest cases in the regulator's history.
1. The allegation — three and a half years inside the auction room
The examiners' report alleges that primary dealers (PDs) — firms licensed to buy Korean government bonds directly at auction, in exchange for market-making obligations — colluded on bids and exchanged auction information from January 2020 to June 2023. The conduct is charged as bid-rigging and information-exchange collusion under Korea's Fair Trade Act, graded a "very grave violation," with examiners recommending corrective orders, fines, and criminal referrals of both firms and current and former executives.
The sales-base decision is what gives the case its size. Following the principle for bid-rigging cases, examiners used the full winning-bid amount — ₩76.2 trillion — rather than any measure of profit. Treasury yields anchor everything from mortgages to corporate bonds in Korea, so if auctions were distorted, the cost diffused into the entire economy. That is the theory that turns an auction-room case into a national one.
2. The case at a glance
| Item | Detail |
|---|---|
| Alleged period | January 2020 - June 2023 |
| Charges | Bid-rigging + information exchange |
| Brokerages (10) | Kyobo, Daishin, Meritz, Mirae Asset, Samsung, Shinhan, NH, KB, Korea Investment, Kiwoom |
| Banks (5) | KB Kookmin, NongHyup, IBK, Hana, KDB |
| Relevant sales | ₩76.2tn (full winning-bid basis) |
| Statutory cap | 20% of relevant sales for gravest violations |
| Press fine estimates | Up to ₩11-15tn (outlets differ) |
| Examiner recommendation | Corrective orders + fines + criminal referrals |
| Industry response | "Excessive — ignores primary-dealer obligations" |
The defense argument sits in the last row. Primary dealers carry mandated duties — underwriting auctions, quoting prices — that make them structurally different from bidders in a construction tender, and the industry contends that applying ordinary bid-rigging math to a market-making system will damage the system itself. The government side counters with the phrase "grave violation." The deliberations will be a head-on collision between legal doctrine and market structure.
3. What remains
No timetable for the commission's decision has been disclosed. A fine in the trillions would reshape capital planning across Korean finance; a heavily reduced one would raise questions about why record numbers were floated at all. How Korean antitrust fines are actually computed — from the headline ceiling to the final number — is today's companion reference, "How antitrust fines are calculated."