STOCK WATCH

MATERIALS group Versarien’s shares soared as it announced a deal with Indian-listed manufacturer Arrow Green Tech.

It will supply Versarien’s newly launched graphene inks products, which are used in various printing processes, and the two firms will also collaborate to explore the use of graphene within security threads for banknotes and passports. Graphene is the purest form of carbon and is 200 times stronger than steel.

Versarien’s shares leapt 11.4pc, or 12p, to 117.5p.