4iG Space and Defence (4iG S&D) and Czech CSG regional cooperation enters new phase. Under agreement terms, CSG acquires 49% minority stake in Hirtenberger Defence Systems (HDS), 4iG S&D subsidiary specialising in mortar systems and 60mm, 81mm, and 120mm calibre mortar ammunition. 4iG S&D retains 51% majority ownership and management control. Partnership focuses on scaling production, strengthening export presence, and integrating joint R&D capabilities to address rising European defence demand.
CSG subsidiary MSM Group brings world-class ammunition and explosives expertise, complementing HDS operations. Integration creates synergies across entire value chain, from R&D to supply chain optimisation.
“This agreement solidifies our strategic partnership with CSG, establishing a multi-country, integrated defence industrial framework. HDS is a 160-year-old industry leader with an active presence in European and overseas export markets. Our goal is to strengthen these international sales capabilities and scale production. Simultaneously, we aim for HDS to become a reliable national supplier for the Hungarian Defence Forces while strengthening our regional presence with advanced mortar systems” – said István Sárhegyi, CEO of 4iG S&D.
“By acquiring a stake in Hirtenberger Defence Systems, CSG is expanding its portfolio with another key segment. At the same time, we are gaining cutting-edge technological know-how and new production capacities. This will enable us to increase ammunition output for both European and global customers. As a result, we will be able to respond even more flexibly to the growing demand for ammunition within NATO and partner countries” – said Jiří Novotný, COO of MSM Group.
The partnership aims to create a robust Central European industrial framework to meet surging international demand. Beyond the existing Austrian plant, companies explore a Slovakian joint venture for international sales support and joint industrial programs. Partners also evaluate a greenfield investment to establish new production capacities in Hungary.
The agreement is part of a broader strategic alliance between 4iG S&D and CSG, covering several business areas, including the domestic market representation of TATRA vehicles and joint manufacturing projects at RÁBA. This includes the recently launched HUMARS integration program in Győr, integrating HIMARS rocket launcher modules onto RÁBA-manufactured Tatra platforms.
As part of cooperation, CSG Group acquires an indirect 37% stake in RÁBA Automotive Holding Plc. In compliance with capital market regulations, the acquisition process is currently ongoing and will be finalized upon completion of the necessary regulatory approvals and procedures.
