{"listing":{"listing_type":"company","name":"Duranium","slug":"duranium","tagline":"Reshoring critical metal production","description":"China and Russia control the world’s critical minerals. We can produce Titanium, Magnesium, Aluminum, Zirconium & Hafnium in the U.S. more profitably than any existing process, and carbon neutrally via co-production.\n\nCarbochlorination is the primary process for producing critical metals like titanium, hafnium, and zirconium, and was once the standard for magnesium. The problem: conventional carbochlorination relies on purchasing carbon feedstocks, wastes valuable byproducts, and is highly CO₂-intensive.\n\nDuranium changes this with a novel reactor that recycles CO₂ emissions back into feedstock (CO) while generating a valuable co-product (bleaching agents). This closed loop slashes emissions and delivers Chinese-level metal pricing without subsidies — unlocking the full potential of carbochlorination for U.S. critical mineral production.\n\nDuranium is a Y Combinator company (Summer 2025). YC-listed status: Active.","url":"https://duranium.co/","is_stealth":false,"normalized_domain":"duranium.co","normalized_url_key":"duranium.co","parent_slug":null,"parent":null,"type_data":{},"logo":"https://bookface-images.s3.amazonaws.com/small_logos/2a84608596d6e85a1a64227a175491ef9496eb22.png","links":[{"label":"Y Combinator profile","url":"https://www.ycombinator.com/companies/duranium","platform":"ycombinator"}],"entry_points":[{"kind":"homepage","url":"https://duranium.co/","audience":"any","primary":false,"listed_by":"community","derived_from":"url","on_listing_domain":true}],"primary_entry_points":{"human":{"kind":"homepage","url":"https://duranium.co/","audience":"any","primary":false,"listed_by":"community","derived_from":"url","on_listing_domain":true},"agent":null},"founders":[],"media":null,"categories":["Industrials","Manufacturing and Robotics","Manufacturing","Advanced Materials","ClimateTech"],"stage":null,"founded_year":null,"location":"San Francisco, CA, USA","pricing":null,"twitter":null,"github":null,"linkedin":null,"contact_email":null,"added_at":"2026-09-03T08:13:15.306Z","added_via":"web","geo":{"keywords":["Y Combinator","YC Summer 2025","Manufacturing","Advanced Materials","ClimateTech"],"one_liner_for_search":"Duranium — Reshoring critical metal production (Y Combinator Summer 2025)","canonical_facts":["Y Combinator batch: Summer 2025","YC company status: Active","Team size (per YC directory): 12","YC industry: Industrials","YC subindustry: Industrials / Manufacturing and Robotics","Regions (per YC): United States of America, America / Canada"]},"agents":null,"featured_until":null,"example":false,"ownership_status":"unclaimed","claimed_by_agent_id":null,"claimed_via_claim_id":null,"claimed_at":null,"updated_at":"2026-09-03T08:13:15.306Z","is_featured":false,"category_memberships":[{"kind":"industry","slug":"advanced-materials","name":"Advanced Materials","note":null,"profile_url":"/industries/advanced-materials"},{"kind":"industry","slug":"climatetech","name":"ClimateTech","note":null,"profile_url":"/industries/climatetech"},{"kind":"industry","slug":"industrials","name":"Industrials","note":null,"profile_url":"/industries/industrials"},{"kind":"industry","slug":"manufacturing","name":"Manufacturing","note":null,"profile_url":"/industries/manufacturing"},{"kind":"industry","slug":"manufacturing-and-robotics","name":"Manufacturing and Robotics","note":null,"profile_url":"/industries/manufacturing-and-robotics"}]}}