Alpacem Cement Pours €30 Million into Emission Control as Slovenian Rules Tighten

The €30M Emission Control Bet at Anhovo

Alpacem Cement, Slovenia's dominant cement producer, is preparing a €30 million investment in air emission reduction at its Anhovo plant. The move is a direct response to a 2024 amendment of the country's Environmental Protection Act, which introduced much stricter emission limits for facilities that co-incinerate waste. The company has already secured a building permit and is now awaiting an environmental permit from the Ministry of the Environment and Spatial Planning, which is accepting public comments until 5 September.

The planned upgrade centres on two technologies: regenerative thermal oxidation (RTO) and selective catalytic reduction (SCR). Alpacem says the project will not alter its production capacity or the volume of waste it co-incinerates; it is solely aimed at cutting emissions of five problematic pollutants—ammonia, total organic carbon, carbon monoxide, mercury and nitrogen oxides—to the lowest technically feasible levels.

The financial backdrop is mixed. In 2024 the company posted revenue of €132.2 million, down 7% year-on-year, largely because the completion of the Divaca–Koper second railway track sharply reduced domestic cement demand. Yet net profit rose 8% to €26.7 million, giving the firm the cash flow to fund the investment. About 62% of sales came from the home market, with the rest exported.

Regulatory Tightening Exposes Cement Industry Tech Gaps

The New Law That Changed the Game

The 2024 amendment to Slovenia's Environmental Protection Act did not just lower emission ceilings; it specifically targeted waste co-incineration plants, a process cement kilns rely on to save fuel costs. Alpacem now faces limits that are, by its own admission, beyond what commercially available, large-scale technology can currently guarantee across all five regulated parameters. The €30 million capex is therefore not a routine upgrade but a bet on engineering solutions that will need to perform under full industrial load.

Technology at the Edge of Feasibility

Alpacem has submitted expert opinions from independent international institutions that conclude no single proven technology exists at industrial scale in the cement sector that simultaneously meets all the new thresholds for ammonia, total organic carbon, carbon monoxide, mercury and nitrogen oxides. The combination of RTO and SCR is a logical engineering response, but until the systems are commissioned and validated, residual uncertainty remains. If they work, the plant would effectively become a test case for an industry that is struggling to reconcile hard emission ceilings with technical reality.

A Profitable Cushion but a Vulnerable Order Book

The 2024 results—profit rising while revenue falls—show good cost control and perhaps favourable pricing, but they also expose a concentration risk. The Divaca–Koper rail project accounted for a large slice of domestic cement demand, and its winding down has left a hole. Unless new infrastructure or commercial building starts fill the gap, Alpacem will depend more on exports, where it faces competition from other EU producers that may not yet be spending €30 million on emissions compliance.

A First-Mover Stakes Its Claim

By going ahead now, Alpacem is positioning itself as an early adopter in a sector where environmental regulation is tightening across the European Union. If the technology proves out, the company could gain a significant competitive edge—potentially even licensing the configuration or using its lower-emission status as a marketing tool in carbon-sensitive markets. Conversely, if the systems underperform, it will have spent a sum equivalent to more than a year's net profit on a dead-end fix, while still facing possible fines or forced shutdowns.

Implications for Investors and Regulators

• Alpacem's shareholders and lenders should track the environmental permit process closely; the public consultation ends on 5 September and any substantive objections could delay construction beyond 2026.
• Other EU cement producers facing similar waste-incineration rules can treat the Anhovo project as a real-world pilot. The operational data that emerges in 2027–28 will be critical for their own investment planning.
• For Slovenia's Ministry of the Environment, the company's claim that no proven technology exists highlights a potential tension between legislative ambition and practical achievability. A transitional compliance timetable may need to be kept on the table.
• Investors in construction materials should note that Alpacem's domestic revenue decline was tied to a single mega-project. A pipeline of smaller public works or a revival in private building will be necessary for the company to sustain its profitability while absorbing the €30 million disbursement.