As i understand it, AZ were complaining of the price caps on medicines it sells to the NHS, an effect "tax" on revenue streams, rather than CT which is on profit
and even at 25% is still lower than many EU countries e.g Germany at 30% (inc federal and regional taxes) or France even higher.
ROI is of course in the SM EU FOM etc etc, the UK is not, its a dra to foreign investors, rather then just buying companies & selling them off.
We need to careful with life sciences, we are good at them but so are many other countries, not least the USA, China and of course the EU.
I find it quite incredible that 6 1/2 years on from the vote, we have a "secret conference" on how to mitigate Brexit and make the most of it.... as if the options haven't already been discussed and found to be la la land or other countries wont agree too.
Brexit will need to be reversed but atm our politicians are scared of the subject, no wonder really, as they lied to get it & are lying now about its damage.