Chemical analysis in customs classification requires disclosed testing basis and fair cross-examination before reliance on adverse reports.

Imported goods classified for exemption purposes must be supported by reliable technical chemical analysis under Chapter 27 Note 4, and a report that does not disclose the testing method or goes beyond analysis into classification may be insufficient. Where the importer challenges the basis of the chemical examination and seeks to test the report through cross-examination, denial of that opportunity can undermine the adjudication. The Commissioner's order was set aside and the matter remanded for de novo consideration, with cross-examination of the Chemical Examiner and permission to adduce further evidence. The classification and exemption questions were left open for fresh decision.

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Issues: Whether the imported goods were correctly classified as naphtha for the benefit of exemption, and whether the denial of cross-examination of the Chemical Examiner warranted remand for fresh adjudication.

Analysis: The classification turned on technical parameters to be established by chemical examination in the manner prescribed under Note 4 of Chapter 27. The load-port inspection certificate was found insufficiently linked to the disputed consignments, while the Chemical Examiner's report, though adverse to the importers, did not disclose the method adopted and also went beyond a mere analytical report by suggesting classification. In such circumstances, the adjudicating authority should not have relied upon the report without permitting cross-examination, particularly where the importers sought to challenge the basis of the testing and to adduce further evidence in support of their claim.

Conclusion: The order of the Commissioner was set aside and the matter was remanded for de novo consideration after permitting cross-examination of the Chemical Examiner and allowing further evidence.

Final Conclusion: The appeals succeeded only to the extent of remand, leaving the classification and exemption questions open for fresh decision by the Commissioner.

Ratio Decidendi: Where classification of imported goods depends on technical chemical analysis, the adjudicating authority must ensure that the testing basis is disclosed and that effective cross-examination is afforded when sought, failing which a fresh adjudication may be required.

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