We are a group of leading trading companies of Pakistan and contemplating to import more than 100,000 metric tons of bagged cement from Russia, China, India and Ukraine in accordance with current policy of government of Pakistan to import duty free cement.

Since government of Pakistan has allowed unlimited cement import to pakstan with immediate effect, in this connection, we request you to please advise us best c&f Karachi rates for ordinary grey portland cement construction grade 42.5 (in 50 kgs. Bags), if so desired by you.

Necessary specification of cement is as under:

According to british standards 12/1996 or ASTM c-150

Chemical composition
Silicon dioxide (sio2) 21.00
Aluminium oxide (a12o3) 5.30
Ferric oxide (fe2o3) 3.30
Calcium oxide (cao) 65.60
Magnesium oxide (mgo) 1.10
Sulphur trioxide (so3) 2.70
Loss of ignition (loi) 0.90
Tricalcium silicate (c3s) 60.00
Dicalcium silicate (c2s) 15.00
Tricalcium aluminate (c3a) 8.05
Tricalcium alumino ferrice (c4af) 9.76

Physical and mechanical properties
Blain cm2/gr 3.250
Autoclave expantion 0.02
Initial setting time (vicat) 105 minutes
Final setting time (vicat) 135 minutes
Compressive strength @ 03 days 230 KG/cm2 and @ 07 days 305 KG/cm2 and @ 28 days 420 KG/cm2

We look forward to your early response.