Hitachi Ltd. will try to lift its overseas sales ratio to 50 percent by the end of 2010 from about 40 percent now to ensure future growth, said Kazuo Furukawa, president of the machinery company.

"Fifty percent will be our milestone," Furukawa said, emphasizing that the performance of the social and industrial infrastructure businesses, which include power plants, elevators and railway systems, will be key to achieving the numerical target.

But Furukawa, who took charge of the company in April last year, also expressed caution, saying expansion in sales must be executed with control because the Tokyo-based company does not want to get its priorities wrong.