As you know, Torishima-san and Store officer calculate the q'ty of using material as PO forecast from the customer.
After that, Store officer will issue the PR and submit to Torishima-san or Akiyama-san approve.
When I get the PR approval, I will issue PO ans send it to NSL.
For the material price, I try to negotiate to discount and now we get the spacial rate and credit term 60 days from NSL.