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3 Mitsubishi Materials units indicted over data fabrication

This photo taken on Aug. 23, 2018, shows a signboard of Mitsubishi Materials Corp. at the building in Tokyo that houses the company's headquarters. (Kyodo)

Tokyo prosecutors said Wednesday they have indicted three subsidiaries of Mitsubishi Materials Corp. and the former presidents at two of the units over product data fabrication.

The subsidiaries -- Mitsubishi Cable Industries Ltd., auto-parts manufacturer Diamet Corp. and Mitsubishi Aluminum Co. -- allegedly violated a law preventing unfair competition, according to the prosecutors.

Hiroaki Murata, 61-year-old former president of Mitsubishi Cable, as well as Mutsumi Yasutake, 60-year-old former head of Diamet, were also indicted for their involvement in the data falsification.

The prosecutors raided the Mitsubishi Materials units in July after the nonferrous metal giant announced in November last year its subsidiaries manipulated data to meet customer specifications.

Aluminum and copper products with fabricated strength data were shipped to more than 700 firms, according to a probe launched by Mitsubishi Materials.

Japanese manufacturers have been mired in product data tampering scandals including Kobe Steel Ltd., which was indicted in July for cheating product quality data.

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