where is the cash going

Interested to hear opinions on the Quarterlies:
December - no cash payments for production, no receipts (as expected)

March (inc. Gazonor) - sales 2.5m euro, production cost 625k euro, net 1.9m euro (still negative operating cash flow though due to other items)

June (inc. Gazonor) - sales 1.4m euro, production cost 1.3m euro, net 0.1m euro

Understand that sales are down due to weather (from previous post) but why has production cost doubled? I note that other cash flows remain similar.

This is a big concern - I don't want them spending my money without good reason!