GST classification of artificial graphite triggers levy under GST law on pastes, blocks, plates and other semi manufactures. Artificial graphite, colloidal or semi colloidal graphite and preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semi manufactures are placed in Schedule 3 and attract GST at 18% until 21-09-2025, governing their tax treatment under the GST schedule.