the answer to the additional cash outflow

The total cash outflow in March Qrt is $ 9.7 million.
The total cash outflow in June Qrt is $17.9 million.

So where did that extra $8.2 million spend?

The answer was actually in the Qrt report itself.

1. $3.7 million was taken out of cash balance to increase US dollar forward contract position. As mentioned in the Qrt report, this amount will be added back to cash balance upon maturity. That reduces the unexplained extra cash outflow to $4.5 million.

2. The sum of development and production related cost in March Qrt is $5871000 ($ 5350000 development cost + $521000 production cost). The sum of these two costs is $8988000 ($8064000 development cost + $924000 production cost) in June Qrt. So that leads to an increase of $3.1 million in June Qrt. It reduces the unexplained extra cash outflow to only $1.4 million.

3. MAD acquired more lease of land in June Quarter (1230 acres) compared with March Quarter (472 Acres). In addition, extra cash was spent on an anticipated work programme in late June. These two factors should explain the remaining $1.4 million extra cash outflow.