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"Communications continue to be one of the most significant challenges," the company said in a statement.
"Compared with traditional tobacco advertisements, such information, dressed up in readable personal stories, is more difficult to identify through regular online supervision channels," said Zeng Xiaopeng, deputy director of the Beijing CDC.
"China started to send medical aid teams to Africa in 1963; the United States also has a long history of aiding African countries. However, the two major countries did not communicate with each other on what they are doing in Africa, and we have been trying to change that," he said.
"China's steel output snowballed from 158,000 metric tons 70 years ago to approaching 1 billion tons this year. But new problems are emerging to threaten our competitiveness, including the homogeneity of products and unbalanced supply and demand," said Chen.
"China's rising copper demand is also in need of more concentrate, the raw material, where Rio Tinto is one of the suppliers. Rio Tinto is developing its copper mine, Oyu Tolgoi in Mongolia, which will be the world's third-biggest copper mine once it reaches full capacity."
