| 1933 | the company, under the name of RIAL, was established by its owner Alois Rieger. |
| 1946 | production of automobile and motorcycle pistons began. |
| 1951 | the company was incorporated in the Metalurgické závody n.p. Týnec n. Sázavou. |
| 1992 | the ALMET Joint-Stock Company was founded. |