Japan has approved a second wave of investment plans under its shipbuilding revival fund, allocating up to another ¥98bn ($635m) in state support across five yard groups. The transport ministry has cleared projects from Oshima Shipbuilding, Kawasaki Heavy Industries, the Shin Kurushima group, Naikai Zosen and Mitsubishi Shipbuilding. Maximum subsidies stand at about ¥6.1bn ($40m) …