The World Trade Organization is set to have its first female leader after Nigeria's Ngozi Okonjo-Iweala and South Korea's Yoo Myung-hee made it through Thursday to next month's final run-off, a WTO spokesman announced. They saw off competition from Britain's Liam Fox, Kenya's Amina Mohamed and Saudi Arabia's Mohammad al-Tuwaijri in the battle to become the next director-general of the WTO. rjm/vog/rl