On Mar. 9, 2019, Tianan LV company won the bid again for Ningbo Metro Line 5 of OKKEN low-voltage switchgear, the total amount exceeds 30 million yuan. For this project, the technical parameters of this product are in the international leading position, not only safe and stable, but also have good cost performance. Previously, Tianan won the bid for Ningbo Metro Line 1, Line 2, Yinfeng Line, Hangzhou Metro, Beijing Metro and other rail transit projects, and the operation status was normal.