GST exemption for silk waste preserves tax-free treatment for qualifying goods under the exemption schedule. Exemption from GST applies to silk waste as a class of goods under the applicable exemption schedule, effective up to 21-09-2025. Classification of the product as 'silk waste' determines eligibility and removes GST liability where schedule conditions are satisfied. Suppliers and purchasers must verify that goods meet the descriptive and documentary parameters in the schedule and comply with any procedural requirements specified to establish entitlement to the exemption.