<h1>Classification of methanation catalyst under chemical products with SION suspended; import inputs must match specified proportions</h1> Standard input-output norms for a methanation catalyst classify it under chemical and allied products with the SION entry suspended and list constituent inputs per kilogram of product: 1 kg methanation catalyst comprised of 0.214 kg nickel metal unwrought and 0.278 kg special grade alumina powder. The schedule governs permissible proportions of inputs for manufacture of the resultant product and requires applicants to ensure imported goods match the inputs actually used or required in the exported product.