The claim is directly supported by the fetched PANews article, titled "Upbit将在韩元、BTC、USDT市场上线CC代币 | PANews," which states that Upbit will list CC on KRW, BTC, and USDT markets on April 14. However, this is a secondary report. I was unable in this run to validate the underlying official Upbit announcement or the linked X posts at https://x.com/x/status/2043926444502667428 and https://x.com/x/status/2043925115625476474 because those fetches failed, and additional corroboration searches did not return usable official evidence. Since the statement says "According to Upbit," the absence of a successfully fetched primary Upbit source prevents a stronger assessment.