Article 4(6) of the Law on Employment and Work of Foreigners provides that when employing a foreigner, the employer must not put the job seeker in less favourable position due to race, color of skin, gender, age, health condition, that is, disability, religious, political or other convictions, trade union membership, national or social background, family status, property status, sexual orientation, or due to other personal circumstances. (English translation available from the ILO through the external link.)