Tanfield (parent of Smith Electric Vehicles) was down 82.58% on the
AIM segment of the London Stock Exchange. This was a real stock drop
and not a split of some sort.
The reasons given have focused on a drop in construction and building
which has caused their electric lift business, and related (73% of
their revenues) to get creamed, apparently. Their electric vehicle
business was not particularly mentioned as a factor in their earnings
Disclaimer: I do not have any particular vested interest in Tanfield,
but do generally have an interest in the fortunes of the global New
Energy sector as a whole.