GST classification for natural cork prescribes a specified schedule rate, defining tax treatment for cork products. Tariff heading 4502 00 00 covers natural cork debacked or roughly squared, and cork in rectangular blocks, plates, sheets or strips, including blanks for corks or stoppers; these goods are placed in Schedule 2 and are subject to GST at 12% pursuant to an amendment by central notification prescribing the applicable integrated tax rate.