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AES Engineering global expansion continues with acquisition of PSS Seal LLC in USA

The UK based global engineering and reliability group, AES Engineering Ltd, has further increased its reliability
services and product offering in North America by acquiring a controlling stake in the global marine propulsion
shaft sealing company (PSS Seal LLC), for an undisclosed sum.

The group also owns AESSEAL®, in Rotherham, the world’s largest homogeneous designer and manufacturer of
mechanical seals. This latest expansion in the global market follows acquisitions in the Netherlands, Canada,
Australia and USA.

PSS Seal LLC (PSS), headquartered in Seattle, Washington is a recognised global leader in the reliability and
sealing technology sector for marine vessel propulsion systems. The company has over four decades of
engineering and manufacturing expertise with an extensive direct and indirect marine channel to market.

The acquisition will allow the existing customers of PSS to benefit from a wider product and service offering from
AESSEAL, and the products and services of all other companies owned by AES Engineering Ltd.

By joining the AES Engineering Group, PSS customers gain access to world-class reliability products such as
Machine Sentry™ the cloud-based condition monitoring system as well as the full industrial range of sealing
technology products manufactured by AESSEAL for the marine sector. The extensive global service network of
AESSEAL will also compliment the supply and customer base of PSS.

Chris Rea, Group Managing Director of AES Engineering Ltd said: “The acquisition of PSS supports our strategic
decision to globalise our sealing technology marine business and further strengthens our customer reliability
offering for this important market. Shaft sealing technology is the critical application in this sector and our
business can now provide a one stop shop for sealing and reliability products and services”

PSS founder and CEO Frederic Laffitte said “The culture, and global reach of AES Engineering Ltd, together with
the extensive product range of AESSEAL makes this a complimentary match for the PSS marine shaft seal
product range. Many of our customers have been calling for an increased product offering for the marine sector
balance of plant, and we can now deliver on this request”.

PSS President Kevin Woody said: “The selection of AES Engineering Ltd as our partner was an easy decision
due to their product technology, similar dedication to customer service and reliability focus. This partnership
allows us to immediately meet the demand from customers for an expanded product range as well as opening
new opportunities in other markets.”

The acquisition was completed on 8th October 2024.

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