Their statement said that they were writing off the £7m investment in the books as they saw no early expectation of a return therfore it becomes a pure cost written off against tax. they expect to make a profit on their £7m from the rise in the overall value of NATS ... sometime in the future !
They state, along with other airlines, that the investment was not a commercial but strategic one. Presumably stopping other buying NATS and acting against thir interests.
Can't wait for my next allocation of shares !!