EQTEC shares jumped more than a third as investors warmed to the sale of its France marketing centre to partner Idex.
The waste-to-energy group will receive payments of €3mln plus a further €15mln for services and equipment during construction.
EQTEC will also be to use the facility once a month to show off its technology to other potential customers.
Shares in the group rose 0.05p to 0.18p.