So which company is accused of spying on Renault -- trying to steal the French carmaker's electric vehicle technology? For now it's just a guessing game.
Renault last week suspended three executives and accused a foreign private company of industrial espionage in an official filing that set the wheels in motion for a judicial investigation.
Renault did not name any alleged foreign perps. Jean-Claude Marin, the Paris prosecutor who will consider the allegations, told Reuters: "They don't cite a foreign power; they only cite private persons."
The formal complaint puts the matter into the hands of the French judiciary and could lead to an investigation by France's domestic intelligence agency.
A government source said last week that intelligence services were looking into a possible connection to China. But French authorities since have played that down. China has denied any link to the case.
Renault COO Patrick Pelata said the company had been the victim of an organized international network but said key technology for electric vehicles was safe.