4.Exercise: 4.1 Investors have the right to buy or sell underlying instruments. Then,   they will get profits or losses from the exercise. 4.2 There are 2 cases of exercise results as follows; - In case of the non-listed instruments, the issuer will submit the report to the SEC. - In case of the listed instruments, the issuer will submit the report to either
  the SET or the SEC.
5.Maturity of Instrument : 5.1 When the instrument becomes matured, derivative warrant holders will
  consider whether of not exercise the instrument. In case they do not
  exercise the derivative warrant, the value of the instrument
  will become zero.