The number of advertisement companies in China increased 17.9 percent in 2013 from the previous year to 445,000, according to the State Administration for Industry & Commerce (SAIC).
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Employees working in the advertisement sector rose 20.4 percent in 2013 year on year to 2.62 million, said Gan Lin, deputy head of the SAIC.
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China's advertisement industry registered a relatively fast expansion in 2013, but the growth rates of advertisement companies and employees both decelerated from 2012, Gan said at an industry conference earlier this week.
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Online advertisement companies' business revenue soared 46.1 percent in 2013 year on year, faster than their traditional advertisement peers, SAIC figures showed. Â