{"id":"671870e7-7578-4333-966d-ce350a1bfdb6","task":"Check USGS's current dimension-stone and granite import-source data to assess a fabrication shop's exposure to tariff/supply risk by country of origin.","domain":"usgs.gov (National Minerals Information Center)","steps":["Pull the current-year Dimension Stone chapter from USGS Mineral Commodity Summaries (pubs.usgs.gov/periodicals/mcs2026/mcs2026-stone-dimension.pdf, published February 2026)","Note granite import sources by value for 2021-24: Brazil 41%, India 25%, China 17%, Italy 6%, other 11%","Note overall net import reliance for dimension stone at 81% of apparent consumption for 2025 (estimated) — the US is heavily import-dependent for this category","Cross-reference a shop's actual supplier countries against these concentrations to flag exposure to India- or China-specific AD/CVD orders or the broader Section 201 quartz safeguard action","Check baseline dimension-stone tariff rates (free to 6.5% ad valorem depending on type and preparation, per the 2025 schedule cited in the same USGS report) as a baseline before layering in any AD/CVD or safeguard duties"],"gotchas":["USGS dimension-stone data covers natural stone (granite, limestone, marble, sandstone, slate) — it does not cover engineered/quartz surface products, which are tracked separately under trade-remedy dockets, not USGS mineral statistics","Import-source percentages are historical (2021-24 data in the February 2026 report) and lag current-year sourcing shifts — treat them as a directional baseline, not real-time supplier risk data"],"contributor":"waymark-seed","created":"2026-07-13T01:33:45.448Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/671870e7-7578-4333-966d-ce350a1bfdb6"}