Whether you want to trust them or not, I think you should give a consistent LEVEL of trust to what they say on their site.
Their site says they own Purina.
Their site says, not Purina in the USA.
So either we should trust them on both points, or on neither point. Not just one of the two points.
Why should I believe that because an organization tells me the truth about one thing that they will tell me the truth about everything. That seems rather naive.