PTT has a policy of sustainable human resources management that respect for human rights and the rights of employees. And practice equally within the universal such as the international principles of Human Rights Council of the United Nations "To Protect, Respect and Remedy" Framework for Business and Human Rights). Organization for Economic Cooperation and Development (OECD) Guidelines for Multinational Enterprises. As well as the importance of a balance between work and life. By supporting employees to quality of life in the working and there is Occupational Safety and Health as well.