Japan’s largest electronics maker Hitachi is reviewing the structure of its nuclear power partnership with General Electric Co (GE) as it seeks to win more global deals.

A Hitachi spokesman did not rule out the possibility of Hitachi and GE changing investments in their joint ventures as part of an overhaul of Hitachi’s global sales network, but said that nothing concrete had been discussed or decided, according to Reuters.

Nikkei Business Daily previously reported that Hitachi is considering taking control of foreign sales of nuclear equipment.

Hitachi leads Japan sales, while GE is in charge of other markets through their partnership.