The Bangko Sentral ng Pilipinas (BSP) on Tuesday starred the demonetization process for 100,000-Piso and 2,000-Piso Centennial Commemorative Notes issued in 1998.

The 19-year-old banknotes will remain legal tender up to July 31, 2018. The BSP said holders can still exchange these -- at full face value, in desired denominations and without charge -- with authorized agent banks from August 1, 2018 to the end of July the following year.