What are the conditions that must satisfied to ensure that the forefeitures of shares is valid?

To ensure that the forfeiture of shares is valid, the company must adhere to the provisions outlined in its articles of association and relevant laws. The shareholder must have been given proper notice regarding the payment default, usually specifying a time frame to remedy the situation. Additionally, the resolution for forfeiture must be passed by the board or shareholders in accordance with the company's governing documents. Finally, the process must be carried out fairly and transparently to avoid any potential disputes.