Kple, a platform operated by online investment finance firm PFCT, is launching a \"second market\" service that lets existing investors sell principal-and-interest receivable rights to other investors. The service allows sales before maturity for apartment collateral investment and securities account collateral investment products. Investors can sell from the third business day after investing and set their own discount rate. Amounts are settled immediately upon execution. Buyers join existing products midstream, with interest calculation starting immediately.