Ballard Power

١١ نوفمبر ٢٠١٧

This Seeking alpha article, https://seekingalpha.com/article/4122202-ballard-power-systems-rapidly-growing-heavy-duty-sector, explains the main sector that is the driving force of this business. It also, is the reason for the recent surge in stock price and makes it a very safe play, in terms of minimal risk.