Directors have several primary duties including acting in good faith and in the best interests of the company as a whole. They must use any powers given to them by the company for proper purposes as outlined in the company's articles and memorandum, rather than for personal gain or other improper collateral purposes. Directors also have a duty to avoid conflicts of interest and disclose any personal interests that may compete with the interests of the company. Failure to fulfill these duties could result in the director being found liable.