HSN Code 3818 refers to "Chemical elements and compounds doped for use in electronics, in the form of discs, wafers, cylinders, rods or similar forms, or cut into discs, wafers or similar forms, whether or not polished or with a uniform epitaxial coating (excluding elements that have been further processed, e.g. by selective diffusion)." This classification code is essential for identifying electronic materials and components for import/export purposes based on their nature, composition, and intended use. Common products under HSN Code 3818 include silicon wafers, gallium arsenide discs, indium phosphide rods, and other doped semiconductor materials. Additionally, the GST rate for these electronic components under this code supports accurate trade compliance.