PLEXUS HOLDINGS PLC Information

• For over 30 years, Plexus has been protecting the environment, initially with its “through the BOP” (Blow-out Preventer) wellhead designs, and subsequently with its proprietary leak-proof wellhead sealing system, POS-GRIP®. • Thanks to POS-GRIP technology, Net Zero leak-free performance can be guaranteed for the life of the well, reducing harmful methane emissions and unnecessary intervention costs. • This simple method of engineering, using sealing principles derived from Hertzian Stress Theory, has been independently verified and used by blue-chip oil and gas operators. • POS-GRIP technology helps operators to fulfil their ESG responsibilities. • Plexus has also signed a non-exclusive license with Cameron International Limited for POS-GRIP surface production wellhead technology, and are working alongside each other on the development of an inaugural low-cost wellhead design incorporating POS-GRIP. • In July 2021 Plexus received London Stock Exchange’s Green Economy Mark in recognition of contributing to the global green economy and demonstrating alignment with Net Zero and ESG principles.