A high profile intellectual property dispute in the wind turbine industry has taken a fresh twist after Brazilian operators Desenvix dropped their case against Chinese partner Sinovel, who had been accused of stealing technology.

Wind turbine

“Desenvix reiterates the confidence it has on Sinovel (SEHK: SINOVZ)  – a global leader in the market of wind power,” the Brazilian company said, adding that this was in the light of “the absence of any type of irregularity” in the wind turbines it purchased from the Chinese vendor.

The Financial Times reports that the case compelled Sinovel to allow a technical inspection of the technology used in 23 turbines they had provided for a project in northeast Brazil.

Desenvix had been forced to act after being sought by ASMC, to provide access to the software codes being used inside the turbines being installed by the Brazilian company.

Both ASMC and Sinovel have spent a year in Chinese courts over the allegations, which Sinovel firmly deny.

Desenvix said Sinovel showed that the “control system and technology” of the turbines used in the Brazilian company’s Barrados Coqueiros Wind Project in Sergipe was provided by Emerson Electric, a US industrial group.

It said Sinovel demonstrated that the software was its own innovation with support from partners such as Mita-Teknik, a Danish firm that supplies control systems for wind turbines and has extensive operations in China.

Following the Desenvix statement, ASMC said would continue to put pressure on Sinovel to provide evidence that the wind turbines shipped to Brazil did not contain stolen codes.

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