CSA

Silica Sand Margin Calculator

PT. Corpus Sejahtera Abadi — Bangka Project

Net margin / ton
IDR 81,333
Weekly
IDR 244 M
Monthly
IDR 975 M
Annual
IDR 12.7 B
Margin %
21.4%
Revenue
Selling price / ton IDR 380,000
IDR 250KIDR 500K
Weekly volume (tons) 3,000 T
500 T10,000 T
Cost per ton IDR
Sand — all-in (extract + wash) 75,000
30K150K
Trucking mine → loading point 50,000
10K150K
Barge + tug boat 34,000
10K150K
Offloading at Marunda port 33,000
5K80K
Trucking Marunda → RBG Cikarang 83,000
20K200K
SSP Royalty
Royalty IDR / m³ 35,000
10K100K

Using density 1.5 t/m³ → royalty per ton = 23,333 IDR

Summary
Selling price IDR 380,000
Total logistics & ops cost (IDR 275,000)
SSP royalty / ton (IDR 23,333)
Net margin / ton IDR 81,667
Weekly volume 3,000 tons
Weekly gross revenue IDR 1.14 B
Weekly total cost (IDR 895 M)
Weekly net margin IDR 245 M

* Does not include govt PNBP royalty (~5% of selling price for export), equipment depreciation, manpower, insurance, or contingency.