What is the recommended stock of coal? Who is Jane going to write to?

M: Jane. shall we go through the inventory then? Let’s start with coal.
F: We have about 45 tons. But we are supposed to have 70 tons.
M: So we’ve got too little. We’d better order some more. How about gas?
F: I think we have enough stock for that.
M: OK, thank you then.

M: Jane, that supplier we use has become very unreliable, and we’ve decided to look for another one.
F: Seems a good idea.
M: We don’t need to inform our clients, but could you send a note round to all our departments when we’ve decided who to replace the supplier with?
F: Yes, of course.