Why Rheinmetall Is Building a Powder Plant in Aschau

On 22 July 2026, Rheinmetall, German defence officials and Bavaria's state government laid the cornerstone for what they describe as Europe's most modern propellant powder plant in Aschau am Inn, Bavaria. The company is investing several hundred million euros and expects to create up to 500 jobs at the site. The ceremony was led by Rheinmetall CEO Armin Papperger, Bavarian Minister-President Markus Söder and Parliamentary State Secretary Nils Schmid, who stood in for Defence Minister Boris Pistorius.

The expansion is a direct response to high demand for artillery ammunition driven by Russia's war against Ukraine, now in its fifth year. Schmid said 155mm ammunition remains a main consumable and a bottleneck in the conflict, and that Germany and Europe must build conventional deterrence and defence capability on their own, especially as the transatlantic security foundation shifts. The ministry also stressed that despite the growing role of drones, large-calibre military equipment still matters, and that electronic systems should increasingly interact with it.

The project comes with concrete targets. Annual powder production at Aschau will rise from 1,700 tonnes to 4,200 tonnes, and propellant charge modules from about 300,000 to over one million units per year. Maximum capacity is expected by 2028. To make room, Rheinmetall has expanded the plant site from 90 to around 110 hectares. By 2030, the company aims to produce 20,000 tonnes of propellant powder annually, switching from rolled powder to mostly granulate-pressed powder to increase volume.

Politically, the project is backed by a new legal change that grants security and defence companies an exemption in building law, allowing them to construct and expand plants faster. Schmid noted that the past focus on final assembly is giving way to supply-chain resilience, and that the new facility is intended to reduce vulnerability to external shocks and geopolitical risks.

Advertisement

Rheinmetall, the Powder Bottleneck and Europe's Ammunition Supply Chain

Targeting the Real Bottleneck in Artillery Production

Rheinmetall's investment is specifically aimed at propellant powder and propellant charge modules, which fits the government's description of 155mm ammunition as a key bottleneck in the Ukraine war. The company says it is one of the few producers covering the full ammunition value chain, from propellant and primer to fuse, shell body and explosive filling. That matters because propellant manufacturing is the stage where European capacity is hardest to add quickly, and where dependence on external suppliers has been most exposed.

A Supply-Chain Decision as Much as a Factory

Schmid framed the plant as a resilience measure, not just a production expansion. By bringing more propellant capacity into Germany, Rheinmetall and the government are reducing exposure to external shocks and geopolitical risks. The newly introduced building-law exemption for security and defence industry companies is a signal that Germany now treats such facilities as critical infrastructure that should be permitted faster. This is an interpretation supported by the minister's own remarks, though the practical impact of that exemption will depend on how quickly it is applied across other projects.

What the Timeline Means for Ammunition Supplies

Even with construction underway, maximum capacity is only scheduled for 2028, and the 20,000-tonne propellant target is set for 2030. That means acute shortages of 155mm ammunition will not be solved immediately. The production shift from rolled powder to granulate pressing is a significant process change that will need to meet demanding quality and safety standards for energetic materials. Until the new lines are fully validated, the Bundeswehr, European allies and Ukraine are likely to remain dependent on existing capacity and stockpile rebuilding.

Who Gains and Who Faces Pressure

The clearest beneficiary is Rheinmetall, whose vertical integration positions it to capture large-scale German and European ammunition orders. German and allied forces benefit in the medium term from a more secure domestic supply base. On the other side, external propellant suppliers that previously served European buyers, and ammunition producers without their own powder capacity, face stronger competition. The timeline remains the key risk: capacity promises look strong on paper, but delivery will depend on construction progress, permitting and the successful adoption of the new granulate process.

What to Watch After the Aschau Groundbreaking

  • For Rheinmetall's customers: Plan around the 2028 capacity step-up; until then, 155mm ammunition supply will remain tight, and the new Aschau output will first ease the propellant bottleneck rather than create surplus.
  • For the Bundeswehr and European allies: Use the 4,200-tonne powder and one-million-module targets as milestones to track whether European production actually closes the gap with demand; the 20,000-tonne target for 2030 is the longer-term benchmark.
  • For investors following Rheinmetall: Watch execution of the granulate-pressing process change and whether the company meets its stated 2028 and 2030 output targets, since slippage would affect delivery timelines for German and NATO contracts.
  • For policymakers: Assess whether the building-law exemption for defence industry plants is enough, or whether similar fast-tracking is needed for raw materials and component suppliers to avoid new downstream bottlenecks.
  • For the Aschau am Inn region: The up-to-500 jobs and the site's expansion from 90 to 110 hectares are the direct local effects; hiring will depend on construction progress and the pace of the capacity ramp-up.

Risk & Opportunity Assessment

Commercial RiskMediumRheinmetall is committing several hundred million euros on the assumption that European demand for 155mm ammunition stays high; an end to the war in Ukraine or a shift in defence budgets would soften that demand, though NATO stockpile rebuilding offers some anchor.
Competitive RiskMediumOther European producers are also expanding ammunition capacity, so Rheinmetall's advantage depends on meeting its 2028 and 2030 output targets; its full value-chain control, from propellant to fuse and filling, nonetheless gives it a strong position.
Regulatory RiskLowGermany's new building-law exemption for security and defence industry plants directly supports this project, and the site is already under construction; standard safety and permitting requirements for energetic materials still apply.
Reputation RiskMediumExpanding arms production is politically sensitive in Germany, and the new plant could intensify public debate about military spending and exports, although the government is explicitly framing the project as a security necessity.
Technology DisruptionMediumThe switch from rolled powder to granulate-pressed powder is a process innovation that must meet military quality and safety standards, while the growing role of drones raises questions about the long-term balance between artillery and other systems.
Commercial OpportunityHighThe plant positions Rheinmetall to win a substantial share of European artillery ammunition orders, tripling its powder capacity by 2028 and targeting 20,000 tonnes annually by 2030, while reducing dependence on external propellant suppliers.