The Hokkaido Prefectural Government said Sunday it has found faked data involving piling work at two more buildings, expanding the scandal involving an Asahi Kasei Corp. subsidiary.
The condominium in Mombetsu and the school in Shinshinotsu bring the number of faulty projects linked to Asahi Kasei Construction Materials Corp. to seven nationwide.
Hokkaido officials said no cracking or tilting was found during inspections at the sites, and that the Asahi Kasei unit has admitted falsifying the piling data at the two buildings.
"I am frustrated by not receiving an official report (from the firm) and its reactive approach. It is very unreliable," Hokkaido Gov. Harumi Takahashi said.
Parent Asahi Kasei is checking piling at 3,040 projects nationwide linked to the subsidiary from the past decade.
The investigation was launched after the unit admitted in October to defective piling and data falsification at a condominium building in Yokohama that has begun to tilt.
Aside from the two new cases reported Sunday and the tilting Yokohama condominium, data falsification has been discovered at a public housing estate in Kushiro, a public junior high school in Yokohama, and at another school in Koto Ward, Tokyo.