H&M scores 5 points higher than Primark on SINK's sustainability index.
H&M is more sustainable according to SINK's open sustainability index, scoring 40/100 vs Primark's 35/100 — a difference of 5 points.
H&M scores 40/100 on the SINK sustainability index (Below expectations). H&M reports comprehensive climate data with verified Scope 1+2 reductions, but Scope 3 emissions rose 3% year-on-year in 2024 despite headline 24% baseline improvement. Fast fashion fundamentals remain linear: 1.5 billion items produced annually, circular sales at 0.6%. Multiple credible reports document greenwashing and supply chain deforestation linked to the company's cotton sourcing.
Primark scores 35/100 on the SINK sustainability index (Below expectations). Primark reports strong operational carbon cuts (71% Scope 1 & 2) but masks a fundamental problem: supply chain emissions account for 97.5% of total impact and have declined only 4%. At current pace, the company will miss its 50% by-2030 target by a wide margin. Dutch regulators ruled sustainability claims misleading. Fast fashion's linear model persists despite circular design pilots.
Both companies are rated on the same 10-question SINK rubric: Scope 1/2/3 carbon footprint, energy source, nature and biodiversity, resource use, water, emissions trajectory, science-based targets, transparency, and controversies. Scores are 0–100, based on public data, and fully reproducible.
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