Yes, to the best of their knowledge. What this means in English is that the information being provided is based on information they know. This is not an absolute denial but rather more of a CYA. OK? Why would a company like Kinross issue a statement containing <to the best of their knowledge>? What does this expression mean in English and how and when is it used?
The statements regarding the value and status of the joint partnership are, to the best of Kinross' knowledge, without any basis in fact. The statement attributed to the Kinross employee in the Southridge news release was incorrectly attributed to him.