Directorate Change

21 March 2024

(EPIC: SRC / Market: AIM / Sector: Construction Materials)

SIGMAROC PLC

('SigmaRoc', the 'Group' or the 'Company')

Directorate Change

SigmaRoc, the Northern European quoted lime and limestone group, is pleased to announce the appointment of two independent non-executive directors to its Board of directors. Both appointments will take effect on 13 April 2024, being the day following the AGM.

Board appointment of Peter Johnson

Peter Johnson will join SigmaRoc's board as an Independent Non-Executive Director. Peter is widely recognised as one of the most successful executives in the building materials space having subsequently followed his executive career with a series of high profile non-executive roles for UK and European quoted groups.

Peter was previously chief executive of George Wimpey plc and prior to that chief executive of The Rugby Group plc up to its acquisition by RMC Group. Most recently he has been Chairman at Electrocomponents plc and Wienerberger AG and was previously Chairman of DS Smith plc.

Board appointment of Francesca Medda

Francesca Medda will join SigmaRoc's board as an Independent Non-Executive Director. Francesca Medda is a Professor of Applied Economics and Finance at UCL. Francesca coordinated the digital strategy and plan of the Italian Financial Conduct and Supervisory Authority, CONSOB. She has also served as an adviser to the Defra and HM Treasury and is a vice president of the Parliamentary and Scientific Committee.

Francesca has worked with both the private and public sectors, including The European Investment Bank, The World Bank, UNESCO, UN Habitat, Willis Re, Halcrow group, and International Association of Public Transport (UITP). Francesca was instrumental in the restructuring of two Italian infrastructure and transportation companies as a member of their boards. Francesca brings a wealth of experience in the fields of public finance, ESG, innovation and digitisation.

Max Vermorken, CEO of SigmaRoc, commented:

"We have made it our mission to systematically attract the best talent in the industry to our board, expand its competences and increase its diversity. With the addition of Peter and Francesca we have again achieved that objective. We are hugely proud to have them and the existing members on our board."

Information on the Company is available on its website, www.sigmaroc.com.

For further information, please contact:

About SigmaRoc plc:

SigmaRoc is a quoted lime and limestone group, targeting quarried materials assets in the UK and Northern Europe.

Lime and limestone are key resources in the transition to a more sustainable economy. New applications for lime and limestone products as part of a drive for sustainability include the production and recycling of lithium batteries, the decarbonisation of construction including through substitution of cementitious material and new building materials, and environmental applications including lake liming, air pollution and direct air capture.

SigmaRoc seeks to create value by purchasing assets in fragmented materials markets and extracting efficiencies through active management and by forming the assets into larger groups. It seeks to de- risk its investments through the selection of projects with strong asset backing.

Further information on Peter Johnson

In accordance with Schedule 2 (g) of the AIM Rules for Companies, Peter Michael Johnson, aged 76, is, or has been, a director or partner of the following companies or partnerships during the last 5 years:

Current Directorships

Lydd Properties Ltd

Former Directorships

Wienerberger AG

1-3 Morpeth Terrace Limited

RS Group Plc (formerly Electrocomponents Plc)

Peter does not hold any legal or beneficial direct or indirect interest in the ordinary shares of the Company.

Further information on Francesca Medda

In accordance with Schedule 2 (g) of the AIM Rules for Companies, Francesca Medda, aged 57, is, or has been, a director or partner of the following companies or partnerships during the last 5 years:

Current Directorships

None.

Former Directorships

Maintenance Mechanics Services s.r.l.

Francesca does not hold any legal or beneficial direct or indirect interest in the ordinary shares of the Company.