In fact, there are several good branches in the aluminum industry. Others, such as mechanical and electrical equipment, have not made any money since their establishment. They are companies that live on benefits from the head office, so their wages are relatively low, so don't expect a raise.
Bolint is not much better, the domestic market has been very small, and the technology is not as good as Mitsubishi, Toshiba and Schindler. There is no core technology.