These are long term bonds issued for foreign markets in foreign exchange by a firm or state.
The Eurobond is the preferred instrument for investors interested in long term investment in foreign exchange. It is a foreign currency investment instrument generating high proceeds under circumstances where Turkish lira deposit interest rates devalue. Its value date is "transaction date + three business days" as standard on the secondary market.
Although the Eurobond is generally issued on a long term basis, it can be realized at any time prior to maturity. Market conditions on the realization date apply. It may be more profitable if the interest rates are low, or vice versa.