Najib Razak and Lee Hsien Loong

Najib Razak and Lee Hsien Loong

Roslan Rahman/AFP/Getty Images

Najib Razak, Malaysia's prime minister, left, and Lee Hsien Loong, Singapore's prime minister, wave from the balcony of a showroom during the Marina One unveiling ceremony in Singapore on Feb. 19, 2013. “He is someone I can do business with,” said Najib of his counterpart in an April 17 interview.