AMSC has for almost two years been pursuing Sinovel – once its biggest customer – through the Chinese courts and commercial arbitration system in a $1.2bn action centering on allegations that some of the manufacturer’s turbines used software code stolen from the US company.

One of its former employees in Austria has already been jailed over the issue, which AMSC is presenting as a test case for the “sanctity” of IP in the Chinese market.

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