This week is our most spending-intensive one. We have paid for:

The premium of a full mask (75% of the total price)
The premium of 100 wafers (50% of the total price)
Most balance payment of the 50TH/s batch's components

We also reserved the coins for:

The premium of half-month electricity usage in the new place
The balance payment of assembly

There won't be more spending besides further wafer & device production and operating cost, which will be much less per week. The next projected big spending is the full mask of our next generation of chips, with the taping-out date undecided yet.