State treasury bills (STB) are discount state securities with the terms of 3, 6, 12, 18 and 24 months and issued in non-documentary form. The main purpose of STB emission is financing of Kyrgyz state budget deficit. State treasury bills placement is made with discount - by price lower than nominal value, with maturity by nominal value. Nominal value of 1 STB is 100 (One hundred) som.