| 2018 Tender dates |
| 2 – 8 February |
| 20 – 28 March |
| 3 – 10 May |
| 21 – 28 June |
| 24 – 31 August |
| 11 – 18 October |
| 29 November – 6 December |
Tender dates are subject to changes
| 2019 Tender dates |
| 31 January – 7 February |
| 20 – 28 March |
| 10 – 17 May |
| 20 – 27 June |
| 29 August – 5 September |
| 4 – 11 October |
| 28 November – 5 December |
Tender dates are subject to change and may vary from operation to operation.
