GEI, Bpifrance and BNP Paribas Développement to acquire an equity stake in SEMIN Group, the go-to trade brand for all plasterboard installations products. Financial terms were not disclosed. “Our company, which has become a key player in the manufacture of construction materials for the building trade, has a two-hundred year history made up of various successive stages and renewed ambition. To speed up and go even faster and further, we have chosen partners who share our vision of a family business and can work alongside us over the long term,” Philippe and Caroline Semin, SEMIN company Directors.