The land ministry will carry out as early as Monday an on-site inspection of Asahi Kasei Construction Materials Corp. over the unfolding scandal related to its building foundation piling work, sources said.
The ministry sees the need for such an inspection because it has been found that the subsidiary of Asahi Kasei Corp. manipulated piling work and related data in more projects than previously known, the sources said Friday.
The ministry has asked the group to report by Nov. 13 on the outcomes of its investigations into the 3,040 projects that involved the subsidiary as a contractor for piling work over the past decade.
The group focused the probes on 41 projects that included an employee who fabricated data in a project for a tilting condominium in Yokohama, the first case brought to light in the scandal.
Data manipulation has been confirmed or suspected in at least five projects, including the one in Yokohama, so far. The newly discovered four projects did not involve the employee in the Yokohama project.