1. high point of plant construction
3. too much supply chasing too little demand
7. excavation for extracting minerals
8. type of contract
12. precious stones
13. 'cue plan' to make a tidy profit (2 words)
15. manage
16. gigapascal
17. members of the board
18. set an upper limit
20. measure of profitability
21. red tape
22. an excavation
23. efficient use of resources
24. metric unit of pressure
26. a surface
27. brings to an end
29. scope of plans (2 words)

2. restore
3. solicited during procurement
4. red tape producers
5. allows economies of scale
6. spatial modeling technique
9. element in environment
10. marking with acid
11. cash flow factor
14. test or specification
18. plan has floating time
19. profit
22. impression
25. small rock fragments
27. shipping unit
28. less than an eon