Ranken Infrastructure secures USD57 million Taiyuan Metro project in China January 12, 2016 | Asia Pacific Company News Sapphire Corporation's Ranken Infrastructure has secured the USD57-million contract to design and develop the Taiyuan Metro Line 2 in China. The scope of works includes construction of a 1.6 km sectio... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password