* Shanghai stocks lower, blue-chip CSI300 index down
* Gains in Shanghai stocks led by Shanghai DaZhong Public Utilities Group Co Ltd and losses by Zhejiang Feida Environmental Science & Technology Co Ltd
* China's A-shares are at a 24.33 percent premium over H-shares
SHANGHAI, March 16 (Reuters) - China stocks fell on Friday and ended the week lower, dragged by consumer and material firms, as reports of more chaos in the Trump administration added to concerns about rising U.S. protectionism.
** At the close, the Shanghai Composite index was down 0.6 percent at 3,269.88, while the blue-chip CSI300 index fell 0.96 percent to 4,056.42.
** The smaller Shenzhen index ended down 0.61 percent and the start-up board ChiNext Composite index was weaker by 1.48 percent.
** Material firms, including aluminium and steel makers, led the decline, after a U.S. trade panel said imports of aluminium foil from China harmed U.S. producers.
** An index tracking material makers on the mainland closed down 1.3 percent on Friday.
** Reports of further chaos in the Trump administration, together with the report earlier this week that Trump is seeking to impose tariffs on up to $60 billion of Chinese imports, cemented investor concerns that the administration is increasingly leaning towards protectionism.
** The largest percentage gainers in the main Shanghai Composite index were Shanghai DaZhong Public Utilities Group Co Ltd up 10.06 percent, followed by Baida Group Co Ltd gaining 10.03 percent and Yangzhou Yaxing Motor Coach Co Ltd up by 10.03 percent.
** The largest percentage losers in the Shanghai index were Zhejiang Feida Environmental Science & Technology Co Ltd down 8.7 percent, followed by Shenghe Resources Holding Co Ltd losing 5.44 percent and Cultural Investment Holdings Co Ltd down by 5.2 percent.
** As of 07:05 GMT, China's A-shares were trading at a premium of 24.29 percent over the Hong Kong-listed H-shares. (Reporting by Shanghai Newsroom; Editing by Subhranshu Sahu)