Gigasun AB (publ) engages in the financing, installing, owning, and managing solar PV installations in China and Sweden. The company serves medium-sized and large private public companies, state-owned companies, and organizations. The company was formerly known as Advanced Soltech Sweden AB (publ) and changed its name to Gigasun AB (publ) in February 2024. Advanced Soltech Sweden AB (publ) was founded in 2014 and is based in Stockholm, Sweden.