Singapore, Nov. 2 -- Nissan

Nissan Motor yesterday appointed American Stephen Ma as its next chief financial officer and said executive vice-president of external and government affairs Hitoshi Kawaguchi and other veteran executives were stepping down, reported Reuters, in a shake-up that one source said marked a "generational change".

The announcement comes just weeks after the Japanese company named the head of its China business, Mr Makoto Uchida, as its next chief executive.

Following the ouster of its chairman Carlos Ghosn almost a year ago, Nissan has been battered by scandals, plunging profits and tensions with top shareholder Renault.

The company said Mr Ma, its global controller who is turning 49 this month, would become it...