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Beijing authorities have been talking with e-bike retailers about the new regulation since mid-May, asking them to withdraw products that do not meet the standards.

Beginning in 2012, with the help of Zhao Li at Iowa China Group, Stine began making connections with Chinese seed companies and now provides high-yield corn and soybean seeds to farms around China.

Beijing had 77 top profitable companies, followed by Guangdong with 71 and Shanghai with 52, said Shen Hanyao, president of WEI.

Beijing has reported new local cases in the single digits for four days in a row, according to Xu Hejian, spokesman for the municipal government.

Beijing－China's biggest residential property market－experienced home price declines for two consecutive months, the first time for the capital in the past 12 months.