Tether files KRW stablecoin trademarks, buys Twenty One Capital

Tether filed seven trademark applications in South Korea and completed the acquisition of SoftBank Group’s entire stake in Twenty One Capital, a public company that holds more than 43,500 Bitcoin.

The trademark applications appear in South Korea’s KIPRIS database under Classification 09, which covers software and digital crypto products. The filings include KRWT and WONTETHER, which reference the Korean won, along with entries for Tether Gold (XAUT), QVAC, USDT0, USAT and Tether’s shield logo. Tether has not announced any plans to launch a won‑linked token, and the filings alone do not confirm a product rollout.

Over the past month, Tether’s USDT circulating supply increased by more than $5 billion. Competing stablecoins including USDC, USDe and PYUSD contracted by roughly $4.2 billion combined over the same period. Overall stablecoin market growth slowed during that span while USDT’s supply expanded.

Tether International acquired SoftBank’s full stake in Twenty One Capital. SoftBank’s board members on the company stepped down following the transaction. The financial terms of the deal were not disclosed. Twenty One Capital holds in excess of 43,500 BTC, an amount valued at about $4 billion at recent prices.

The trademark filings and the Twenty One Capital acquisition are separate developments. The registrations reserve names and a logo in South Korea. The acquisition places a company with a multibillion‑dollar bitcoin balance under Tether’s control.

Tether has not issued formal statements detailing product launches, regulatory filings in South Korea, or the monetary terms of the Twenty One Capital acquisition.