KUALA LUMPUR: Tan Sri Francis Lau Tuang Nguang, dubbed the “chicken king” of Malaysia, is making his return to the local bourse with the biggest initial public offering (IPO) in almost two years that will test investors’ appetite for chicken producers. Leong Hup International Bhd, which owns livestock feed mills and poultry businesses in five countries, is targeting to raise up to RM1.2bil in its IPO that includes an over-allotment option.