1832 - MM. Grelbin & Jannot establish the Company Grelbin at Triel sur Seine near Paris (France). The Company processes gypsum into plaster around Paris.

1900 - The Company Grelbin specializes into milling, drying, mixing and mechanical handling.

1950 - The Company Grelbin becomes # 1 in France for equipments dedicated to the plaster industry.

1954 - Establishment of Meci Fours France™ (subsidiary of Meci USA™).

1976 - The Company Grelbin is bought by the Ayrault Group located in Parthenay (Deux Sèvres), Central France.

1978 - Establishment of the Company M2G, subsidiary of the Mace Holding. The Automation Dept of Meci™ is bought by Elf, and the Industrial Furnaces Dept by a financial Company based in Paris.

1980 - Mace Holding buys the Grelbin workshop based in Parthenay, and specializes them in the fields of drying, granulating, cooling and milling.

1984 - Mace Holding buys the plaster activity of the Company Grelbin/Grelbex based in Paris

1985 -The activities of Grelbex Paris move to Parthenay

1987 - M2G takes back the thermal treatment activities of the Company Meci.

1989 - M2G buys the activities of the Company Nagat, manufacturer of lab and sampling furnaces.

1992 - M2G invests in the activities of calcination and drying, and applies for an international patent for a gypsum calcination process (FMG Multiplasters™ kiln)

1996 - M2G applies for a second international patent for another gypsum calcination process (FCG Cyclone kiln)

2001 - Implementation of the Quality Insurance

2003 -Test lab development with the pilot kiln FMG Multiplasters ™

2005 - Installation of the first FCG Cyclone™ kiln

2006 - Launching on the market of a anhydrite grout mixing unit (Anymix™) for the manufacturers of liquid floor leveling compounds.Grelbex becomes Grelbex Gypsum