Korea's institutional digital asset market has stopped looking like a set of isolated experiments and started looking like a full financial stack. Exchanges sit at the front, custody and settlement occupy the middle, and a contested race for tokenized securities infrastructure is forming at the top. The structure now mirrors traditional capital markets, with banks, brokerages, and the country's core market operators each claiming a layer.

This piece breaks the stack down layer by layer, then examines the two consortia fighting to set the standard for tokenized securities and the pending won-stablecoin legislation that will shape settlement.

The Four Layers of Korea's Institutional Stack

Exchanges and Retail

The retail-facing layer remains the most mature and consolidated part of the market. Upbit, operated by Dunamu, dominates domestic volume, followed by Bithumb, with Korbit and Coinone holding smaller shares. These venues are the entry point for most Korean users and the reference price source for the rest of the stack, but their role is increasingly upstream of a much larger institutional buildout rather than the center of it.

Custody and Distribution

Custody is where Korea's largest banks and financial groups have moved fastest. The layer includes specialist custodians KODA and KDAC, the local arm of BitGo, and major banks KB, Shinhan, and Hana, alongside Hanwha I&S. Bank participation matters because Korean regulation has historically tied institutional digital asset access to qualified custody, making this layer a gatekeeper for everything built above it.

Settlement Layer

The settlement layer is the most technically active and the least settled in terms of winners. It spans banks such as Woori and K-bank, the fintech platform Toss, and a group of blockchain infrastructure providers including BDACS, InfiniteBlock, Lambda 256, and Altus. LG CNS anchors this layer with deep permissioned-blockchain experience, having served as lead contractor on the Bank of Korea's CBDC project and as a partner in building tokenized securities issuance infrastructure. The unresolved question here is how settlement finality will work once tokenized securities and a won stablecoin go live together.

Tokenization and Issuance

The top of the stack is the most crowded and the most strategically important. It includes the country's core market operator Koscom, major brokerages Mirae Asset, Shinhan I&S, KB Securities, NH I&S, Samsung Securities, Kiwoom Securities, and Eugene I&S, content-rights platform MusicCow, infrastructure provider Galaxia Moneytree, and banks NH, BNK, and IM. This is the layer where the market's competitive structure is being decided, because whoever sets issuance and distribution standards controls the rails everyone else must use.

The Battle for the Top: Two Consortia, One Standard

Korea's tokenized securities, or STO, market has split into two camps, with one major brokerage opting out of both.

The first camp is led by Koscom, the core financial network operator in which Korea Exchange holds a 76.6% stake. Koscom is pursuing a neutral infrastructure model consistent with its mandate to provide shared infrastructure for securities firms. Rather than signing exclusive deals with individual issuers, it has integrated roughly a dozen securities firms onto a common platform, aiming to set issuance and distribution standards and to stay compatible with Korea Securities Depository custody management requirements. Its work spans an issuance platform built with LG CNS, a Korea Securities Depository testbed for total-volume management, a proof of concept for stablecoin-based atomic settlement, and participation in the Korea Exchange's KDX consortium for a fractional-investment trading venue.

The second camp is the fractional-investment alliance led by Shinhan Investment & Securities, which moved quickly to build its own STO ecosystem rather than wait for shared infrastructure. Shinhan has aligned with the Nextrade consortium, the trading venue built around the alternative exchange that launched to challenge the Korea Exchange monopoly, and its role includes managing investor accounts and providing the distributed ledger layer for converting existing fractional investments into security tokens.

Mirae Asset Securities has taken a third path entirely, leveraging overseas operations rather than waiting on domestic infrastructure to mature. The result is a market where the eventual standard is not yet fixed, and where positioning now determines who captures issuance flow later.

The Missing Piece: KRW Stablecoin Legislation

The settlement question cannot be fully answered until Korea finalizes the rules for a won-denominated stablecoin. Discussion around won stablecoins and the broader institutionalization of digital assets has expanded rapidly, with banks reviewing custody and payments roles and securities firms preparing for tokenized assets. Early activity is already visible: the first won stablecoin began acquiring tokenized Korean government bonds held at Shinhan Securities, marking the first time tokenized Korean government debt has been used to back a won stablecoin.

Until the legislative framework is complete, the settlement and tokenization layers are building toward a standard that does not yet legally exist. That gap is the single largest variable in how the rest of the stack resolves.

What Is at Stake

Korea is assembling one of the most complete institutional digital asset stacks of any major market, with regulated custody, bank-backed settlement, and brokerage-led tokenization developing in parallel rather than in sequence. The competitive question is no longer whether institutions will participate but which infrastructure they will standardize on.

With the market split between the Koscom-led consortium and the Shinhan-led alliance, Mirae Asset pursuing an independent route, and won-stablecoin legislation still pending, the contest for Korea's digital asset stack is in its early stages. The layers are in place. The standards, and the winners, are not.