1 June 2019

THE ALUMASC GROUP PLC

(the "Company")

Voting Rights and Capital

In conformity with Rule 5.6.1R of the Disclosure Guidance and Transparency Rules, the Company announces that the issued share capital of the Company consists of 36,133,558.00 ordinary shares of 12.5p each with voting rights.

Therefore, the total number of voting rights in the Company is 36,133,558.00. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules.

Enquiries:

Notes to Editors:

Alumasc is a UK-based supplier of premium building products, systems and solutions. Almost 80% of group sales are driven by building regulations and specifications (architects and structural engineers) because of the performance characteristics offered.

The group has three business segments with strong positions and brands in their individual markets. The three segments are: Roofing & Water Management; Architectural Screening, Solar Shading & Balconies; and Housebuilding Products & Ancillaries.