Incheon Metropolitan City Mayor Ahn Sang-soo visited North America, including Philadelphia, New York, San Francisco, and Toronto, Canada, from April 26 to May 4, 2005, and held investment briefings on the Incheon Free Economic Zone. Through this briefing session, it received a letter of intent to invest from HNTB, a leading U.S. engineering company, and confirmed the $200 million investment intention of AMB Property, a global logistics company.