Falling turbine sales and rising O&M expenses eroded profitability in 2015, the company said in a statement to the Shanghai Stock Exchange (SSE).
Last April, Sinovel reported that it was profitable in 2014 for the first time in three years, narrowly avoiding a delisting from the SSE.
Earlier this week, it revealed that it had agreed to collaborate on the development of smart energy solutions with Cisco Systems.
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