A separate form 8452 must be filed with each form 8401

State of Wyoming Department of Revenue 122 West 25th Street Cheyenne, WY 82002-0110

ANNUAL GROSS PRODUCTS ATTACHMENT FOR BENTONITE SCHEDULE A TAXPAYER INFORMATION

Operator ID

Revenue Use Only

Taxpayer

8452

!"#$ Production Year: __ __ __ __ MINE GROUP INFORMATION Mine Group Number

Mine Group Name

A separate form 8452 must be filed with each form 8401 SALES INFORMATION 25. Bulk Taconite Sales

TONS

VALUE

26. Bagged Taconite Sales 27. Bulk Oil Well Sales 28. Bagged Oil Well Sales 29. Bulk Foundry Sales 30. Bagged Foundry Sales 31. Total Sales COMPUTATION OF ADD-ON FACTOR 32. Direct Mining Costs (Line 14 MINING) 33. Direct in-mine transportation costs (line 19) 34. Total Direct Mining Cost (line 32 + line 33) 35. Current Year Total Direct Mining Cost per ton (line 34 / line 21 TONS) 36. Prior Year Total Direct Mining Cost per ton 37. Difference (line 35 - line 36) 38. Percentage change in Total Direct Mining Cost per Ton (line 37 / line 36) 39. Current Year Sales Value per Ton of Taconite, Oil Well, and Foundry Products 40. Prior Year Sales Value per Ton of Taconite, Oil Well, and Foundry Products 41. Difference (line 39 - line 40) 42. Percentage Change in Sales Value per Ton (line 41 / line 40) 43. Difference in Percentage Changes (line 42 - line 38) 44. Prior Year Add-on Factor 45. Difference in Percentage Changes x Prior Year Add-on Factor (line 43 x line 44) 46. Current Year Add-on Factor (line 44 + line 45) ROYALTY INFORMATION 47. Federal Royalty

TONS

VALUE

48. State Royalty 49. Tribal Royalty 50. Private Royalty 51. Total Royalty MTS2 9/24/99