Directa Plus Plc is expected to raise £12.8mln as it starts trading on AIM today.
The graphene producer priced its initial public offering at 75p per share with 44.2mln shares in issue, giving it a market capitalisation of £33.2mln.
Italian alternative investment firm Quadrivio Capital will remain the company's largest shareholder with a 13% holding, down from 24% prior to the IPO.
The net proceeds will be used to support the development of its high quality engineered graphene materials, as well as increase its manufacturing capability and production volume.
It will also be used to pay off some of the group’s loans and to boost its profile.
Established in 2005, Directa Plus is headquartered in the Como Science and Technology Park in Lomazzo, Italy. Its graphene-based products are manufactured using its patented, high temperature ‘Plasma Super Expansion’ technology.
Its purpose built production facility in Lomazzo is capable of producing up to 30 tonnes of graphene a year.
The company's graphene products have been used in ski suits worn by the French national ski team.
Directa Plus is chaired by former secretary to the Treasury and chairman of Barclays, Peter Middleton.