<h1>Input-output norms govern authorised import of specified steel inputs against exports, with route-based exclusions and alloy formulas.</h1> SION sets input-output norms for permitted imports against export of specified steel engineering products, listing defined inputs and quantitative allowances, including formula-based ferroalloy quantities tied to mean elemental contents. Applicability is restricted to exports produced via gas/coal based sponge iron, electric arc furnace or induction furnace routes using iron ore; several inputs are excluded depending on production route and continuous casting or ingot exports. A CIF-value cap limits certain items to twenty-five percent of the licence CIF value, and imports must be those actually used in the export product.