| 1863 - 1865 | The Aramayo Bismuth mines are opened in Bolivia | |
| 1868 | Aramayo opens Bismuth refinery in England | |
| 1906 | Aramayo is traded at the London stock exchange | |
| 1916 | Compagnie Aramayo transfers their main office to Switzerland | |
| 1929 | Aramayo founds the Mining and Chemical Products Ltd. in London | |
| 1952 | Nationalization of the company-owned mines through the Bolivian government. | |
| 1957 | HEK GmbH, Lübeck, Germany, joins the MCP group | |
| 1969 | Founding of Metalspecialties Inc., USA | |
| 1970 | MCP starts to market "Prototype Tooling" | |
| 1974 | MCP France is acquired as a subsidiary | |
| 1986 | Opening of a new MCP-Factory in Wellingborough Founding of the HEK Medical technology | |
| 1987 | MCP introduces vacuum-pouring-technology in Europe | |
| 1990 | MCP Italia is founded in Milan | |
| 1991 | Founding of MCP Systems in the USA | |
| 1992 | MCP Iberia branch in Madrid | |
| 1997 | Opening of MCP Technology in Minsk | |
| 1998 | A new factory for highly pure metals und chemicals in England | |
| 1999 | Expansion of the Demo-Centre in Düsseldorf | |
| 1999 | Opening of the Euro-Tech-Centre in Düsseldorf | |
| 2004 | Founding MCP HEK Chemicals Shangyu, China | |
| 2005 | Founding MCP HEK Oxide |
