Secondary: C - Manufacturing
23 - Manufacture of other non-metallic mineral products
https://www.iareporter.com/articles/cement-plant-investor-makes-good-on-earlier-threat-to-lodge-treaty-arbitration-against-angola/ (requires subscription)
https://globalarbitrationreview.com/article/uae-cement-plant-investor-files-claim-against-angola (requires subscription)