OKX rolls out OKX Pay and OKX Card in Brazil to offer USD stablecoin access, up to 10% APY, and no IOF tax on international spending. OKX announces in São Paulo the launch of OKX Pay and OKX Card in Brazil, enabling instant PIX‑linked conversion of reais to USD‑denominated stablecoins, domestic and cross‑border stablecoin transfers, [...]