It is incredibly important to research the company before your interview. You should learn who the company's competitors are. Discuss your findings with the interviewer and be sure to speak highly of Letseng Diamonds (Pty) Ltd. while answering this question.
"I have researched Letseng Diamonds (Pty) Ltd. and see that you truly are an industry leader in the metals and mining arena. From my research, I believe what sets you apart is your incredible dedication to safety, and to the environment."
"From my understanding, your biggest competitors are companies A, B, and C. I believe that Letseng Diamonds (Pty) Ltd. is different because you put safety above all else. Your public safety records are impressive, and I am excited at the possibility to join such a responsible company."