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| 6. | The substitution index of the assessed raw material related to supply risk (SISR ) is calculated as follows: where: i denotes an individual substitute material; a denotes an individual application of the candidate material; SPPi; SR is the Supply Risk performance parameter of each substitute material, i, based on its global production, criticality and economic significance (primary product, co-product, by-product); Sharea is the share of the candidate materials in an end-use application; Sub_sharei,a is the sub-share of each substitute material within each application.
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Source: EUR-Lex (Cellar) · retrieved 2026-10-13 · Text as adopted (Official Journal); later amendments are not incorporated in this text.