mineral · input
Calcium Carbonate Extender (GCC/PCC)
Primary volume extender and functional filler in architectural paints. Reduces TiO2 usage through optical spacing effect. Omya AG (~20% global market share) and Imerys dominate. Multiple global sources available; lower switching cost than other inputs.
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Source countries
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Companies
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Goods affected
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Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on calcium carbonate extender (gcc/pcc) somewhere upstream in their supply chain.