Five presidents did not attend the summit – Mexican President Enrique Peña Nieto, Peruvian President Martín Vizcarra, Russian President Vladimir Putin, United States President Donald Trump, and Vietnamese President Nguyễn Phú Trọng.
Lima presiden tidak menghadiri konferensi tahun ini – Presiden Meksiko Enrique Peña Nieto, Presiden Peru Martín Vizcarra, Presiden Rusia Vladimir Putin, Presiden Amerika Serikat Donald Trump, dan Presiden Vietnam Nguyễn Phú Trọng.