Of course, although it's called a pharmaceutical lab in name, it's actually more of a research center for Takamanohara. It's just that to cope with the constraints of the Celestial's advanced technology embargo treaty, they bring in advanced equipment from the Celestials under a private name. They've spent money on these things too, and letting them idle would be a waste, so they do some outsourcing for other companies, synthesizing custom chemicals to earn a bit of extra cash.
And Takamanohara trusts this Professor Tamura because he is solely focused on research and doesn't care about producing any replicas of non-patented prescription drugs or hugely profitable wellness products.
His main focus is still on his collaborative research with Tokyo University and the myriad projects arranged by the upper echelon of Takamanohara.
