155 mm powder and ammunition plant in Pionki (Eurenco / PGZ)
A new plant for multi-base powder and modular charges for 155 mm caliber artillery ammunition, being built in Pionki in Mazovia on the site of Mesko (PGZ Group) in cooperation with the French group Eurenco. The project envisages establishing a joint venture with the participation of PGZ, Mesko and Eurenco, in which the Polish side is to retain a 51% stake, along with technology transfer modeled on Eurenco's plant in Bergerac, France. A framework agreement for ten years of cooperation was signed on 22 October 2025 at Mesko's headquarters in Pionki, and on 15 June 2026, during the Eurosatory 2026 trade fair, Mesko and Eurenco concluded a shareholders' agreement establishing the joint venture. Eurenco's investment on the Polish side is estimated at around EUR 250 million; the plant's target capacity is around 1,200 tonnes of artillery powder per year and up to 600 thousand modular charges. Production start-up is planned for 2028, with full capacity to be reached at the beginning of 2029 at the latest.
Timeline
Slip: +12 mo. vs. the original date
- Announced 22 Oct 2025
- Original date 2028
- Current date 2029
Change history
- 22 Oct 2025 stage: announced
Significance
The plant is intended to close one of the weakest links in the European artillery ammunition production chain — the manufacture of powder and propellant charges. Launching production in Poland of multi-base powder (ultimately approx. 1,200 tonnes per year) and up to 600 thousand modular charges for 155 mm shells is to make the domestic and European industry independent of external supplies of this critical component. Retaining a 51% stake on the Polish side is to ensure domestic control over the production process, while the transfer of Eurenco technology (the Bergerac model) is to reduce production start-up risks. The investment strengthens Poland's strategic self-sufficiency in the 155 mm ammunition segment.
Sources 5
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- Portal ObronnyStageInvestorOriginal date
owner.type „a joint entity with the participation of PGZ, Mesko and Eurenco, in which the Polish side will have 51% stake"
Stage „PGZ selected Eurenco ... to construct Poland's first multi-base gunpowder and modular charge facility for 155mm artillery ammunition in Pionki"
- Defence24Costcost.basisSignificance
name.pl „budowę nowoczesnej fabryki prochu oraz ładunków modułowych do amunicji artyleryjskiej kalibru 155 mm w Pionkach na Mazowszu"
Cost „Eurenco ... is investing approximately 250 million euros in Poland through a partnership with Polish Defence Group (PGZ)"
cost.basis „investing approximately 250 million euros in Poland"
locations „w Pionkach na Mazowszu"
Significance „około 1 200 ton prochu artyleryjskiego rocznie oraz do 600 tysięcy ładunków modułowych"
- BiznesAlert 22 Oct 2025AnnouncedInvestorStageOriginal date
Investor „Polish side will hold 51% of shares, guaranteeing domestic control over production"
Announced „Agreement Date: October 22, 2025 ... Location: Pionki (MESKO S.A. headquarters)"
Original date „New factory in Pionki will allow Poland to achieve full production capacity by 2028"
- MILMAG 15 Jun 2026StatusCurrent date
Status „Mesko and Eurenco have signed a shareholders' agreement establishing a joint venture"
Current date „Full operational status will occur no later than early 2029"
- Polska Grupa Zbrojeniowa Oct 2025StatusInvestor