The Zambian government will continue to welcome foreign investors in the country's mining sector but they must respect labor laws, the new president, Michael Sata, said in his inaugural speech Friday...Sata...has been a well-known critic of Chinese investments in the country's copper mining sector...During the 2008 presidential campaigns, Sata called salaries at Chinese-owned copper mines "slave wages," and threatened to deport Chinese investors and sever diplomatic ties with China. China has brought billions of dollars into Africa's capital-hungry economies but attracted criticism for flouting labor laws and allegedly fostering official corruption. [refers to Numis Securities, Vedanta, Glencore, Barrick Gold]