Hanergy has acquired US firm Global Solar Energy in the Chinese solar company’s third foreign acquisition in a year, Reuters reported. Global Solar, based in Tucson, Arizona, specializes in making solar cells with copper indium gallium diselenide (CIGS) technology. The thin-film products, which are lighter than traditional crystalline silicon modules, are applied in integrated and rooftop solar projects, electronic vehicles and portable solar products. The deal follows Hanergy’s purchases last year of Silicon Valley start-up MiaSole and of Germany’s Solibro. Hanergy, a private renewable energy producer, controls Hong Kong-listed Hanergy Solar (0566.HK) and employs more than 8,000 people.