Wire · opportunities
South Korea Super-App Toss to Run Won Stablecoin Pilot on OP Stack
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Fusion42 · 12 July 2026 · Fusion42 review
Toss, South Korea's 30-million-user fintech super-app, is running a three-month pilot of a Korean won stablecoin on Optimism's OP Stack, with privacy tools from Sunnyside Labs to shield transaction data whilst maintaining compliance. This is the fourth regulated financial institution in a year to adopt OP Stack, after Bitpanda, Kraken and Mitsui, signalling institutional confidence in the framework for regulated digital currencies.
This Wire brief sits within Fusion42's coverage of Fintech.
◆ ◆ The Wire takeaway
If you're building compliance or privacy tooling for regulated finance, you now have proof that a 30-million-user institution will buy it. Toss's three-month pilot is a live reference customer for whoever can solve transaction privacy on public chains without breaking KYC.
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1 source · 11 Jul 2026
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