Each employee in the Exchange and every Member of the Board of Directors of the Exchange is obliged to keep the confidentiality of the data and inside information that they gain sight of, by virtue of their position or through their professional or personal relations, and they are not allowed to reveal such, or give advice on the basis thereof to another non-insider. They shall not sell, purchase or subscribe in listed securities or those securities that applied for a listing unless under circumstance and conditions stipulated in Article (1-3-8) of this Module.