Knowledge base

Coal, explained for the people who buy it.

Short, practical guides on grades, calorific value, sourcing and logistics — written for procurement and plant teams, not for search engines.

Coal grades

ROM vs Steam vs Slack Coal: What's the Difference?

The three workhorse domestic grades differ mostly in sizing and consistency. Here's how to tell them apart and match them to your plant.

5 min readRead

Coal quality

Understanding GCV: How Coal Calorific Value Is Priced

GCV is the single number that most determines what your coal is worth. Here's what it measures and how to read it.

6 min readRead

Sourcing

WCL, SECL and SCCL: India's Coal Command Areas Explained

Where your coal is sourced shapes its grade, its haul and its availability. A primer on the three command areas we work across.

5 min readRead

Logistics

Coal Logistics: Rake vs Road, and Why First-Mile Matters

Delivered cost is set as much by movement as by grade. Here's how rake and road dispatch compare and where yards fit in.

5 min readRead

Buyer's guide

How to Choose a Coal Grade for Your Industry

Different industries reward different things in coal. Use this as a starting point, then confirm against your equipment.

6 min readRead

Sourcing

Imported vs Domestic Coal: Which Should You Buy?

Imported coal isn't automatically better — it's a trade-off of GCV and ash against cost and logistics. Here's how to decide.

6 min readRead

Coal quality

GCV vs NCV: Why Your Coal Shows Two Different Numbers

Gross and net calorific value describe the same coal differently. Knowing which is which keeps quotes honest.

4 min readRead

Buyer's guide

How to Buy Coal in India: A Procurement Guide

Buying coal well is mostly about defining the spec and de-risking the paperwork. A practical procurement walk-through.

7 min readRead

Buyer's guide

What Determines the Price of Coal?

Headline rupees-per-tonne hides what you actually pay for. Here's what really drives coal price.

6 min readRead

Coal quality

Washed vs Unwashed Coal: Is Washed Coal Worth It?

Washing strips ash and lifts calorific value — at a price. Here's when it's worth paying for.

5 min readRead

Coal quality

Coal Ash and Moisture: Why They Matter as Much as GCV

GCV gets the attention, but ash and moisture decide what actually reaches your boiler.

5 min readRead

Got a spec in hand? Skip the reading and ask us.

Tell us the grade, GCV and tonnage you need and we'll come back with a quote and a recommendation.

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