# clm_1C74869FC1C1

subject: Rio Tinto Group (/record/rio-tinto.md)  
predicate: founded  
value: 1873-03-29  
valid_from: 1873-03-29  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-12  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-12  
cite: AsOf. "Rio Tinto Group founded: 1873-03-29", as of 1873-03-29. Claim clm_1C74869FC1C1, https://asof.is/claim/clm_1C74869FC1C1, accessed 2026-11-12. Source: https://www.riotinto.com/en/about/history.  
checked: 2026-11-12 · its source page states the value and the date  

> on 29 March 1873, the Rio Tinto Company was registered in London with Matheson as Chairman.

What https://www.riotinto.com/en/about/history says, word for word.

## Sources

- https://www.riotinto.com/en/about/history (primary, riotinto.com)

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