| The main historical developments of ZakÅ‚ad Metalurgiczny (“ZM”) are presented below. |
| 1937 |
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Engine Factory in Rzeszow was established by the Government of the Republic of Poland. |
| 1938 |
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Production of aircraft engines commenced. |
| 1951 |
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After World War II the aero engine factory was nationalised and fully modernised. In 1960s and 1970s the company experienced rapid growth producing a wide range of modern engines. |
| 1952 |
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Aluminium Foundry and Forging Shop production was launched. |
| 1972 |
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The production of aluminium castings on low-pressure cell was started. |
| 1973 |
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The Iron Foundry began operations, focused on castings for Polish Leyland engine. |
| 1991 |
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New production was launched. Parts for tractors and automotive industry. |
| 1994 |
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Engine Factory was transformed into a joint stock company wholly owned by the State Treasury. The company’s name was changed to WSK “PZL – Rzeszow” S.A. (“WSK”). |
| 1996 |
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Production of aluminium sand castings for Power Transmission & Distribution commenced. |
| 1997 |
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First castings for locomotive engines, for export to USA, were produced. |
| 2002 |
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On 11th March, 2002, the Polish State Treasury sold WSK to United Technologies Corporation (UTC). |
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From 1st June, 2002 Zakład Metalurgiczny operated as an independent business unit within WSK . |
| 2004 |
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On 24th November, 2004 Zakład Metalurgiczny was established as an independent company. |
| 2007 |
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On 16th March ZM was purchased from WSK by Hugh Aiken. |
