China set to decide if Costa Rican or Guyanese diplomat becomes first woman UN chief

China is poised to decide which of two Latin American women becomes the first to lead the United Nations, after three rounds of informal voting in the Security Council failed to produce a favourite. Several UN delegations that spoke to the South China Morning Post over the past three days said Beijing was weighing Rebeca Grynspan, the Costa Rican economist who heads UN Trade and Development, and C