Powering global E-Mobility: Rosti Group’s Commitment

The global shift to electrification is accelerating, and with it comes increasing pressure on EV charger and e‑mobility manufacturers to scale quickly, meet complex regulatory demands, and bring robust products to market faster than ever.

At Rosti, we have spent nearly a decade partnering with leaders in this sector to help them do exactly that.
For more than nine years, Rosti Group has been deeply committed to the EV battery storage and charging sector supporting customers as they navigate rapid technological evolution, shifting regulation and global expansion of this market.

Our strength lies not only in manufacturing capability, but in partnering with our in-house Innovation and product design teams as well as our Production Transfer team. We work alongside customers to bring compliant, scalable and high-performance EV solutions to market providing market-leading contract manufacturing services.

Global e-mobility contract manufacturing partner

In 2017, we embarked on a strategic partnership with a German energy storage company focused on advancing e-mobility solutions for large vehicles. The customer had a clear ambition: to revolutionise energy storage systems within heavy vehicle markets.

We supported them as their global plastic injection moulding partner from early product development through to industrialisation and market launch.

The initial focus was the development of a high-performance multi-cell carrier system. This component needed to meet stringent industry standards, including:

• Temperature resilience
• Vibration resistance
• Fire retardancy

Achieving this required much more than plastic injection moulding capability. We worked closely with the customer’s design team to refine and optimise the product for manufacturability at scale. Significant time and engineering resource were invested in detailed design reviews and enhancements to ensure the solution was both technically innovative and production-ready.

Material selection was also critical. Rosti engaged a resin specialist and their German based engineering team as well as collaborating with the customer to identify materials that met regulatory, operational and performance requirements across different geographies.

Supporting scalable global growth

As global demand for the energy storage systems grew, scalability became the next challenge.

To support the customer’s ambition to penetrate global markets with proven technology, Rosti deployed a dedicated Production Transfer team. Manufacturing processes were seamlessly transferred from Europe to North America, with duplicate tooling produced to ensure consistent quality standards across continents.

Products were validated and re-tested to meet regional regulatory requirements, while operational set-up was supported locally to ensure continuity of supply. This was not simply a relocation of manufacturing, it was a structured global expansion strategy, underpinned by process control, validation and unified quality systems, which has now resulted in Rosti nearly quadrupling the volume of business we do with our customer.

We have now established production capability across two major markets to support our customer in supplying into the major heavy vehicles market globally. One key benefit of our North American production is a strengthened, local supply chain and customer support.

Navigating the complexities of EV battery storage

 The EV battery storage and charging market is shaped by evolving legislation, localisation pressures and shifting global trade dynamics.

Our teams understand how to navigate:

• Regional compliance frameworks
• Tool duplication and validation
• Production transfers between continents
• Localisation strategies that reduce risk and improve responsiveness

With a global footprint and aligned operating model, Rosti enables customers to replicate capability anywhere without compromising quality.

Nine years of commitment to the EV market

Nine years on, our commitment to the EV battery storage and charging sector continues to deepen. We have supported customers from concept development through to global scale-up.

We have helped proven technologies enter new markets with confidence. And we have demonstrated that agility, engineering expertise and global manufacturing alignment are essential in this fast-moving sector. If you are developing components for EV charging or storage solutions, our global teams can support you from early design to high-volume manufacturing.