Empresas y finanzas
Australia braces for "long haul" in China spy case
Smith, speaking to reporters in Perth, added that Chinese authorities had still not revealed to Australia any evidence in support of their decision a week ago to detain four Rio Tinto employees, including its top iron ore salesman in China, Australian Stern Hu, on suspicion of espionage.
The affair has cast a shadow over Australia-China relations.
(Reporting by Fayen Wong, writing by Mark Bendeich; Editing by Darren Schuettler)