
RB1
RB1 is the higher African steam-coal grade on this list: a 6,000 kcal/kg basis, with a published minimum of 5,850 and ash held to 15 percent.
Import · African coal · RB1

Industrial imports
Richards Bay style steam coal in RB1, RB2, and RB3. Choose the grade by the range, then confirm the lot on its certificate.

RB1 is the higher African steam-coal grade on this list: a 6,000 kcal/kg basis, with a published minimum of 5,850 and ash held to 15 percent.
Import · African coal · RB1

RB2 sits under RB1: still quoted off a 6,000 kcal/kg basis, with a lower minimum of 5,700 and ash allowed up to 17 percent.
Import · African coal · RB2

RB3 is the lower grade on this list: a 5,500 kcal/kg basis, minimum 5,300, with ash allowed up to 23 percent.
Import · African coal · RB3