Aadrikaa Legal Services (ALS)- Law I Litigation I Arbitration
Date: 06.11.2026
CESTAT Mumbai: Customs Cannot Deny Duty Exemption by Adopting Incorrect Coal Testing Parameters
This Short Article has been prepared & written by Advocate Ravi Shekhar Jha-Delhi High Court, New Delhi. The views expressed are based on his interpretation of the law. He can be reached at his email id intelconsul@gmail.com .
The Customs, Excise and Service Tax Appellate Tribunal (CESTAT), Mumbai has set aside customs duty demands against JSW Steel Limited and JSW Steel Coated Products Limited, holding that eight consignments of Indonesian coal were correctly classified as steam coal and were eligible for the applicable basic customs duty exemption.
The dispute: steam coal or bituminous coal?
The case concerned coal imported by JSW between April 2012 and January 2013 for use in its captive power plant at Tarapur. JSW declared the consignments as steam coal under Customs Tariff Item (CTI) 2701 1920 and claimed exemption from basic customs duty under Serial No. 123 of Notification No. 12/2012-Customs.
Customs authorities later reclassified the imports as bituminous coal under CTI 2701 1200. This reclassification led to demands for differential customs duty, interest and penalties. The departmentβs position was that the consignments met the statutory parameters for bituminous coal: volatile matter above 14% on a dry, mineral-matter-free basis and calorific value of at least 5,833 kcal/kg on a moist, mineral-matter-free basis.
The central issue was therefore not simply how the coal was used. It was whether Customs had correctly calculated the scientific parameters required under the tariff definition.
Why the Tribunal rejected the departmentβs calculation
CESTAT found that the department had applied the Parr formula using values on an air-dried basis (ADB). The Tribunal held that this was inconsistent with ASTM D388-12, which requires data on an inherent-moisture-containing basis, equivalent to the as-received basis (ARB), when calculating calorific value on a moist, mineral-matter-free basis.
This distinction was decisive. Air drying removes part of the coalβs moisture, leaving residual moisture rather than its full inherent moisture. Using ADB figures in the formula could artificially inflate the calculated calorific value and make coal appear to meet the threshold for bituminous coal.
The Tribunal applied the Parr formula using the appropriate ARB-based values. For seven of the eight Bills of Entry, the resulting calorific values were below 5,833 kcal/kg. Because both statutory conditions must be met cumulatively for coal to qualify as bituminous coal, these consignments could not be reclassified as bituminous coal.
Discharge-port test reports supported JSWβs declaration
For two consignments, departmental CRCL laboratory reports from the discharge port described the coal as having the characteristics of steam coal. The Tribunal treated these reports as especially relevant because they reflected the goods as imported and presented to Customs for assessment.
It also noted that Customs had not relied on these reports when raising the duty demands, despite including them among the relied-upon documents. Further, the department did not provide an opportunity for re-testing before seeking to impose a later duty liability based on its calculations.
The Tribunal concluded that the discharge-port reports had greater evidentiary value than calculations based on load-port data that did not follow the prescribed methodology.
Classification principles clarified
The ruling draws a clear distinction between coal classification by rank and by use:
- Bituminous coal is defined by the technical thresholds in Chapter 27βs sub-heading note.
- Steam coal is identified under the βother coalβ category and is generally associated with use for heating or electricity generation.
- A coal consignment can be treated as bituminous coal only if it meets both prescribed scientific thresholds through proper testing and calculation.
CESTAT held that where the calorific value on a moist, mineral-matter-free basis is below 5,833 kcal/kg, or the volatile-matter condition is not met, the goods cannot be classified as bituminous coal. Where the goods are intended for power generation, they are appropriately classified as steam coal under CTI 2701 1920.
Exemption from basic customs duty upheld
At the relevant time, Notification No. 12/2012-Customs granted a nil rate of basic customs duty for steam coal under CTI 2701 1920, with 1% additional duty. Since the Tribunal found all eight consignments to be correctly classifiable as steam coal, JSW was entitled to the exemption.
As a result, the duty demands failed. The Tribunal also found no need to examine allegations of deliberate misdeclaration, confiscation or penalty because the underlying classification and exemption claim were valid.
Outcome and wider significance
CESTAT set aside the four challenged orders issued by Customs authorities in Mumbai and Goa and allowed JSWβs appeals. The Tribunalβs decision reinforces that customs classification disputes involving technical specifications must be resolved through scientifically correct methods, not by selective conversion of test values.
The ruling is particularly significant for importers of coal and other commodities whose tariff treatment depends on laboratory parameters. It emphasizes that Customs must rely on representative testing, apply recognized standards strictly, consider evidence from the imported goods at the discharge port, and give appropriate weight to favourable departmental test reports. In this case, the Tribunal held that incorrect use of ADB values had led to an unsustainable reclassification.
Proper application of the Parr formula showed that the imports were steam coal, preserving JSWβs duty exemption and eliminating the related duty, interest and penalty exposure.
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Source: CESTAT Mumbai
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