Ningbo Jintian Copper (SHA:601609) directors approved the early redemption of its convertible bonds, according to a Wednesday filing with the Shanghai bourse.

The early redemption comes as the company' stock price closed above 13.24 yuan per share, or 130% of the 10.18 yuan bond conversion price, the filing said.

The copper company will buy back the remaining bonds at face value, including accrued interest, up until the redemption date. Investors will also have the option to sell the bonds before the conversion deadline or could convert the bonds into shares at 10.18 yuan.

Company shares fell 2% during the lunch break on Wednesday.