R&S Group with increased free float and broadened shareholder base

The trade, which took place yesterday post market close, corresponds to 6.8% of R&S Group’s share capital. After the transaction, CGS will continue to have a residual shareholding in R&S Group of 6.8% subject to a new lock-up held by UBS for 90 days. On the back of this transaction, the free float of R&S Group shares is expected to increase from 76% to 83%.

Contact Investor and Media Relations Doris Rudischhauser Phone: +41 79 410 81 88 Email: investors@the-rsgroup.com

About R&S Group R&S Group Holding AG’s (“R&S Group”, the “company”) operating headquarters are located in Sissach/BL, Switzerland. With eight manufacturing facilities in Switzerland, Italy, Poland, Ireland and the Middle East, the group serves its domestic and various European markets with single-phase, small and medium distribution and power transformers and other components under the brands of Rauscher & Stoecklin, ZREW, Tesar and Kyte. R&S Group’s customers are active in the utility, infrastructure and industrial sectors. The company has been successfully positioned to benefit from the accelerating demand for energy production and distribution, driven by the global trend towards decarbonization. R&S Group has been listed on SIX Swiss Exchange since 13 December 2023 under the ticker symbol RSGN. On 20 August 2024, the company acquired Kyte Powertech, a leading supplier of distribution transformer solutions based in Cavan, Ireland, thus significantly expanding geographic footprint to Ireland, the UK, Benelux and France, and adding complimentary products.

Further information about the R&S Group can be found at www.the-rsgroup.com.

Disclaimer This communication expressly or implicitly contains certain forward-looking statements concerning R&S Group Holding AG and its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results, financial condition, performance or achievements of R&S Group Holding AG to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. R&S Group Holding AG is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.