On November 20, the organization announced the bidding in public, which was awarded to Shanghai Construction Factory of Lugen's Engineering Office (Chinese: 上海陆根记营造厂).
Pada 20 November, organisasi tersebut mengumumkan penawaran di depan umum, yang diberikan kepada "Pabrik Konstruksi Shanghai dari Kantor Teknik Lugen" (bahasa Tionghoa: 上海陆根记营造厂).