Heidelberg Materials is intensifying its business activities in Western Sahara, a territory occupied by Morocco, which the United Nations classifies as a non-self-governing territory. The expansion of cement and concrete production in the region contradicts the internationally disputed legal situation under international law and could strain the ESG positioning of the German building materials company.
Western Sahara Resource Watch, a non-governmental organization that documents economic activities in the disputed territory, reports a massive increase in production capacities. The company's engagement takes place through local subsidiaries that are tied to the Moroccan administration. International law experts see this as a possible violation of international norms, as the Sahrawi, the original population, are not participating in economic returns and have never given their consent.
For building material dealers, architects, and product managers who must increasingly comply with ESG criteria, this approach raises questions. Heidelberg Materials has publicly committed to sustainability goals and the decarbonization of cement production. However, the expansion of business in an occupied territory contrasts with these goals and could undermine the credibility of EPD statements and sustainability reports.
The industry is watching developments with interest. Investors and institutional clients relying on DGNB certifications or comparable standards are increasingly scrutinizing the entire supply chain – not only the carbon footprint of products, but also the social and political dimensions of raw material extraction. This is particularly true for major public construction projects and tenders that require ESG compliance.
Heidelberg Materials itself has not yet made a public statement on the international law assessment of its Western Sahara activities. In previous reports, the company cited the economic importance of markets in North Africa and compliance with local laws. Critics counter that international recognition of Moroccan sovereignty over Western Sahara is disputed and the UN has been calling for a referendum on the territory's status for decades.
The development shows how strongly ESG strategies depend on global political framework conditions. For planners and purchasers in the construction sector, the origin of Portland cement and other binders becomes an additional selection criterion – alongside technical parameters such as compressive strength class or clinker factor. If you want to be on the safe side, you should specifically ask about the production origin in sensitive projects and consider alternative suppliers such as Holcim or regional providers.
Practice takeaway: Building material procurement with ESG requirements today requires more than technical data sheets. When reviewing tenders with sustainability requirements, also examine the geopolitical dimension of the supply chain – particularly for manufacturers with activities in disputed regions.
