A THAI princess and chemistry professor, Chulabhorn Mahidol, will be a keynote speaker at a science conference at the University of Cape Town next week, the Thai embassy announced on Thursday. The princess, youngest daughter of Thailand’s King Bhumibol and Queen Sirikit, is professor of organic chemistry at Mahidol University in Bangkok and president of the Chulabhorn Research Institute. She will be speaking at a conference of the Third World Organisation for Women in Science. During her nine-day stay she will also hold talks with President Nelson Mandela and Arts, Culture, Science and Technology Minister Ben Ngubane.