How stablecoin subscriptions flow into a Korean SPC

How does a stablecoin subscription end up as a Korean loan asset?

Not in a single transfer. A global investor’s subscription starts as a stablecoin balance on a public blockchain, but the asset it is meant to fund is a won-denominated Korean loan held by a Korean entity. Bridging those two worlds is a designed sequence of steps — an off-ramp from crypto to fiat, a currency conversion from dollars to Korean won, a cross-border remittance, and finally the acquisition of a loan receivable inside Korea. Each step is handled by a distinct party, and the crypto, the dollars, and the won never sit in the same place.

This post walks through that money path as it is designed to work. An important caveat up front: the offshore tier that would receive subscriptions and issue tokenized units is a planned Hong Kong vehicle, not yet formed, and any issuance through it is contingent on regulatory clearance. What follows is the designed steady state, not a description of a live, generally available product. The Korean asset-holding side is live today, and a pilot has tested the end-to-end connection; the broad subscription product is on the roadmap. For the legal reason the assets must stay in Korea, see how root64 holds Korean loan assets.

What is the full path, step by step?

The subscription moves through four stages: stablecoin in, off-ramp to fiat, FX and cross-border remittance, then acquisition of the Korean loan receivable. The table below is the whole journey at a glance; the sections after it explain why each step exists and who performs it.

Stage	What happens	Who handles it	What changes form
1. Subscription	Professional investor pays USDT/USDC to the offshore vehicle and receives units	Investor → offshore vehicle (planned)	Stablecoin leaves investor’s wallet
2. Off-ramp	An external OTC desk converts the stablecoin to fiat dollars off-chain	External OTC desk	Stablecoin → USD
3. FX + remittance	Dollars are converted to Korean won and remitted to the Korean SPC, under prior Bank of Korea notification	Offshore vehicle’s trustee → Korean SPC	USD → KRW, offshore → onshore
4. Asset acquisition	The SPC uses the won to acquire the right to receive principal and interest on Korean loans	Korean SPC	KRW → loan receivable

Source: root64 business structure, investment cash-flow scenario, as of June 2026.

The design principle running through all four stages is separation: the entity that receives the subscription is not the entity that holds the assets, the crypto-to-fiat conversion happens outside the banking rails entirely, and no single party both controls the assets and controls the cash. That same separation is what makes the bankruptcy-remote Korean SPC work, and it carries through the whole money path.

Stage 1: how does the subscription enter the structure?

A professional investor subscribes by paying a stablecoin — USDT or USDC — to the offshore vehicle and receiving units in return. A “unit” here is a participation in the offshore pooled vehicle; in the planned design it takes the form of an on-chain token, so holding the token is holding the unit. The unit is the investor’s claim; it is not itself the Korean loan.

This is the only stage at which crypto is involved on the investor’s side, and it is restricted to professional investors through private placement — there is no public offering and no retail product. The offshore vehicle that would receive these subscriptions is the planned Hong Kong tier. It is not yet formed, so in the live structure today this stage runs through a pilot arrangement rather than a generally available subscription channel. For how the offshore tier fits the broader access question, see how foreign investors access Korean loan assets.

Stage 2: why does the stablecoin get converted to fiat before anything else?

Because the receiving bank account only ever holds fiat. In the design, an external OTC (over-the-counter) desk converts the subscribed stablecoin into fiat dollars off-chain, and only those dollars are deposited into the vehicle’s bank account. An OTC desk is a venue that executes large crypto-to-fiat trades directly between two parties rather than on a public exchange order book — the standard institutional route for converting stablecoins to currency at size without on-chain congestion or price slippage (StraitsX, How Institutions Use Stablecoins for Large Block Trades, accessed 2026-06-19).

Isolating the crypto touchpoint at the OTC desk is deliberate, and it solves a concrete banking problem. Banks are often reluctant to maintain accounts for entities that directly hold or transact in crypto. By keeping the conversion outside the banking rails, the vehicle’s bank sees only fiat moving in and out — a conventional fiat account from the bank’s perspective, with no crypto exposure on the books. The stablecoin is converted before it ever reaches a bank, and the Korean SPC further down the chain never touches crypto at all.

This off-ramp pattern is itself conventional. A stablecoin off-ramp converts on-chain dollars back into fiat and settles them into traditional bank accounts, handling the exchange and the associated compliance checks in between (Modern Treasury, What is a Stablecoin On-Ramp and Off-Ramp?, accessed 2026-06-19). What is specific to this design is where the off-ramp sits: at the very front of the chain, so that everything downstream — the bank account, the FX conversion, the remittance to Korea — operates entirely in fiat.

Stage 3: how do offshore dollars become Korean won inside Korea?

Through a currency conversion and a cross-border remittance that follows Korea’s foreign-exchange rules. The fiat dollars in the offshore vehicle’s account are converted to Korean won and remitted to the Korean SPC’s account inside Korea. Because this is an inbound cross-border movement of funds into Korea, it is made under prior notification to the Bank of Korea (BOK) — the country’s central bank — as required by Korea’s foreign-exchange framework.

This step exists because of a currency mismatch that cannot be wished away: the subscription is denominated in dollars (after the off-ramp), but the underlying assets are won-denominated Korean loans. Something, somewhere, has to convert dollars to won — and that introduces both an FX cost and currency risk, which the investor bears. It is not optional friction; it is the unavoidable consequence of connecting offshore capital to a local-currency asset.

It also has to respect Korea’s capital-flow rules rather than route around them. Korea’s Foreign Exchange Transactions Act governs cross-border payments and certain capital movements, and the general principle is that capital transactions are reported before they are conducted — the Bank of Korea must be notified of relevant cross-border fund movements, and where a required report is not made, the related payments cannot lawfully proceed (Bank of Korea, Foreign Exchange System — Relevant Legislation, accessed 2026-06-19). Designing the remittance around that notification requirement, rather than treating it as an afterthought, is part of what keeps the structure compliant on the Korean side. The deeper reason a non-resident cannot simply wire money in and buy loans directly is covered in how foreign investors access Korean loan assets.

Stage 4: how does the won actually become a loan asset?

The Korean SPC uses the remitted won to acquire the right to receive principal and interest (원리금수취권) on Korean loans — the economic right to a loan’s repayments. The SPC participates as a qualified transferee in the market for these receivables, taking a position in them the way other eligible institutional investors do, rather than having assets simply handed down to it. This is the moment the subscription stops being cash and becomes a loan asset.

The right to receive principal and interest is the precise legal object the SPC holds, and it is distinct from owning the loan contract itself. It is worth understanding on its own terms; we cover it in the right to receive principal and interest. What matters for the money path is that the won arriving from offshore is converted, at this final stage, into a Korean-law asset held by a Korean entity — exactly the kind of asset a non-resident could not have bought directly.

How does the offshore capital connect to the SPC’s pool — does the vehicle buy the loans?

No. In the planned design the offshore vehicle does not buy Korean loan receivables outright from offshore — Korean rules restrict who those receivables can be transferred to, and a foreign vehicle is not a qualified transferee. Instead, the connection is built as a bond issuance plus security. The Korean SPC privately issues a foreign-currency-denominated bond (외화표시채권) offshore, and the offshore vehicle subscribes to it. The bond carries no fixed coupon; its return tracks the net performance of the SPC’s loan pool, on a limited-recourse, pass-through basis. “Limited recourse” means the bondholder’s claim is satisfied only out of the SPC’s assets; “pass-through” means the SPC passes the principal and interest it collects through to the bondholder.

To protect the offshore side, the SPC pledges the loan receivables it holds as security for that bond. So the SPC holds the assets and owes the bond; the offshore vehicle provides the capital and holds the security interest. This issue-and-pledge shape is what lets capital connect to the economics of Korean loans without the receivables themselves having to leave a qualified Korean holder. It is a designed feature of the planned offshore tier — not a step that is operating in a generally available form today.

There is also a tax reason for connecting capital through a bond. Interest on a foreign-currency-denominated bond issued offshore by a Korean company can be exempt from Korean withholding tax for non-resident holders under Article 21 of Korea’s Restriction of Special Taxation Act (조특법) — so the interest the SPC pays can reach the offshore vehicle without a Korean withholding deduction along the way. That treatment is contingent on the issuance genuinely qualifying as an offshore one and on tax sign-off, but it is a meaningful reason the structure connects capital through a bond rather than through a plain cross-border loan.

What does this money path look like on-chain?

In root64’s transparency layer, the cash legs of this path are recorded on a public blockchain as they happen, so an investor can see the movement of money rather than waiting for a periodic report. The seeding of a pool and an investor’s deposit into the SPC’s account are recorded as distinct on-chain cash-flow entries, and the SPC’s accounts are themselves split — an investment account that receives subscriptions and an operating account that funds lending — so the path from “subscription received” to “money put to work” is visible step by step.

A few guardrails are worth stating plainly. Recording cash flows on-chain does not mean the chain controls the money: actual bank transfers from the SPC’s accounts are executed by the SPC’s bank, and the authoritative confirmation of each SPC-side cash movement is signed on-chain by an independent trustee against the bank’s own records. Putting the data on a blockchain is not, by itself, proof — what makes it meaningful is that an independent party attests to it and that external checks are logged alongside it. We explain how that verification works in how to verify root64’s on-chain proofs, and why the verification layer is built before tokenization in transparency before tokenization.

What is live today, and what is still planned?

The Korean asset-holding side of this path is live: a Korean SPC holds the loan receivables today, and a pilot has tested the connection from offshore capital through to the Korean assets end to end. The full subscription flow described here — a generally available stablecoin subscription into an offshore vehicle that issues units and subscribes to the SPC’s bond — depends on the planned Hong Kong tier, which is not yet formed and is contingent on regulatory clearance.

Element of the path	Status
Korean SPC acquiring loan receivables	Live
On-chain recording of SPC cash flows	In build
External OTC off-ramp (crypto → fiat)	Used in pilot
Offshore vehicle receiving subscriptions and issuing units	Planned — not yet formed
Foreign-currency bond issued by the SPC, subscribed by the offshore vehicle	Planned
Generally available stablecoin subscription product	Not available today

Source: root64 business structure and roadmap, as of June 2026.

The honest framing is that the destination of this money path — Korean loans held by a compliant Korean entity, with cash flows being made verifiable on-chain — is real and operating, while the front of the path, the offshore subscription tier that issues units in exchange for stablecoins, is designed and planned rather than live. None of this changes the nature of the underlying assets: they are loans, they carry credit risk, and the FX step carries currency risk. The structure makes the path to those assets compliant and, increasingly, verifiable — it does not remove the risk in the assets themselves.