| 1933 |
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Family business incorporated after operating as sole traders based in Victoria since the 1860s. |
| 1953 |
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Operating from Melbourne City Abattoirs, supplying mainly domestic market and some frozen lambs to the United Kingdom. |
| 1963 |
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Expanded into boning of meat for both the domestic canning market and mutton for the recently-opened U.S.A. market. |
| 1969 |
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Formed association with Frozen Foods Industries Limited and used their facilities for boning of meat for export. Built boning production up to a level of processing 600 cattle per day. |
| 1979 |
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Purchased Newport abattoir originally owned by Swift & Co and then R J Gilbertson Pty Ltd, with a slaughtering capacity of 550 cattle and 7,500 sheep and lambs per day. |
| 1984 |
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Formed one operating company, Gilbertson Greenham Pty Ltd, with R J Gilbertson Pty Ltd after foreseeing a downturn in the availability of cattle, sheep and lambs. |
| 1988 |
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Turnover for Gilbertson Greenham Pty Ltd topped $200 million, exports topped $100 million, and number of employees reached more than 1000. |
| 1989 |
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H W Greenham & Sons Pty Ltd sold its holdings after changes in the structure of R J Gilbertson Pty Ltd. |
| 1993 |
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H W Greenham & Sons Pty Ltd commenced operating a new hot boning plant at Tongala, northern Victoria. |
| 2000 |
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Instigated the Greenhams Dairy Scholarship. |
| 2001 |
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Exporting 24,300 tonnes per annum to the United States, slaughtering more than 164,000 cattle supplied by beef and dairy producers in southern Australia. |
| 2002 |
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Opened Greenham Tasmania at Smithton, processing for overseas markets. |
| 2003 |
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Instigated Greenham Tasmania Dairy and Beef Industry Scholarship. |
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