Nomura Securities Co. and Dai-Ichi Kangyo Bank each submitted plans Sept. 19 to the Finance Ministry for steps to strengthen their internal control systems.

The plans, which were handed to ministry officials by presidents of the two financial institutions, included measures to increase transparency in decision-making and improve the system of checking business transactions. The firms are suspected of illegally offering financial paybacks to “sokaiya” racketeer Ryuichi Koike, and were handed administrative penalties by the ministry July 30.

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