AMSC soars on Sinovel court win

China's Supreme People's Court in Beijing

China's Supreme People's Court in Beijing

US power technology firm AMSC has claimed a victory in the latest procedural twist in its protracted legal battle with Chinese wind group Sinovel.

AMSC said China’s Supreme People’s Court has found in its favour over the jurisdiction of two software copyright infringement cases it brought against Sinovel – formerly the US company’s biggest customer – and Guotong Electric, another company involved in the proceedings.

The decision means the two actions will now be heard as two separate cases in the Beijing No. 1 Intermediate People’s Court and Hainan No. 1 Intermediate People’s Court, said the US firm.

The update sent the company's shares 14% higher in early trading in New York.

AMSC and Sinovel had fought a series of appeals up through the Chinese legal ladder as the latter attempted to have the two civil cases removed from the court system and wrapped into commercial arbitration proceedings underway involving the two parties at the Beijing Arbitration Commission.

AMSC – which is claiming damages of $6m and $200,000 in the two actions – said it will now wait to hear from the courts over new dates for the hearings.

The two civil cases and the commercial arbitration proceedings are themselves just part of a wider legal battle between the two companies raging in China since 2011. AMSC is also pursuing Sinovel for alleged intellectual property theft and breach of contract in a $1.2bn action centring on software code used in wind turbines.

The issue is also live in the US, where a grand jury last July charged Sinovel, two of its executives and a former AMSC employee with stealing trade secrets from the Massachusetts-based company.

A former employee of an AMSC subsidiary has already been jailed in Austria amid claims that he was involved with Sinovel in obtaining the US group’s IP.

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