The distiller and brewer Diageo, which has several distilleries in Scotland producing whiskies such as Bell’s, Johnnie Walker and Old Parr, has concerns about Alex Salmond’s “many unanswered questions”.
A Diageo spokeswoman said: “Our position on Scotland has not changed. We remain firm in our view that any decision on Scotland’s constitutional future is a matter for the people of Scotland. However, there are many questions to be answered in relation to the implications of potential constitutional change on our industry.
“Naturally, we would have concerns about any developments which could add cost, complexity or uncertainty to our business in areas such as the currency, EU membership, access to the single market and international trade, as well as official support for exports. We still have no clarity in these areas.
“We, together with the SWA [Scottish Whisky Association], continue to seek the reassurance we need in areas of critical importance to the future success of our business, and of the industry.”