Strict construction of exemption notifications confined relief to rock wool, excluding slag wool despite technical similarity.

Exemption notifications must be strictly construed, and relief cannot be extended beyond the specific product named in the text. Here, the tariff treated slag wool and rock wool as distinct expressions, and the notification granted exemption only to rock wool. Technically similar or synonymous goods could not be treated as interchangeable for exemption purposes. The result was that slag wool remained outside the scope of the notification, and the denial of exemption was upheld.

---

---

Issues: Whether slag wool was entitled to exemption under Notification No. 50/86-C.E. dated 10-2-1986, which expressly granted exemption to rock wool.

Analysis: The tariff entry treated slag wool and rock wool as distinct expressions, and the exemption notification extended relief only to rock wool. Exemption provisions are to be construed strictly, and the benefit cannot be enlarged by treating technically similar products as interchangeable when the notification uses a specific term.

Conclusion: The exemption was confined to rock wool only and was not available to slag wool.

Final Conclusion: The appeal failed, and the denial of exemption to slag wool was upheld.

Ratio Decidendi: An exemption notification must be strictly construed, and where the notification names only one product, the benefit cannot be extended to another product merely because it may be technically similar or synonymous.

---