What is Rio Tinto Group's current founding date?

March 29, 1873, dated March 29, 1873, from a primary source (riotinto.com). The record asserts this claim as of November 12, 2026 (status valid, confidence 0.95).

organization · fact

Rio Tinto Group founding date

As of November 12, 2026, Rio Tinto Group's founding date on the AsOf record is March 29, 1873, dated March 29, 1873, from a primary source (riotinto.com).

Rio Tinto Group on another date · compare two dates

current founding date: March 29, 1873March 29, 1873 · 1 source

Every dated value

1 value · 1 current

Rio Tinto Group founding date: every dated value on the record, oldest first, with its dates, status, confidence and sources
value	valid fromThe day the value took effect, not the day it was published. A period figure (a year's revenue) is dated at the period's end.More in About →	valid to	confidenceHow well the sources support the value, from 0 to 1. A single primary source is asserted from 0.7; nothing below 0.5 is asserted; a dead or disagreeing source lowers it.More in About →	sourcesPrimary: the entity's own filing, feed or site. Secondary: a publisher reporting it. Each claim links every source it has, with the passage that states the value where one was read.More in About →
March 29, 1873: founding date 1873-03-29 from 1873-03-29, claim clm_1C74869FC1C1 and its sources to present · riotinto.com	1873-03-29	present	0.95	riotinto.com

Questions this record answers

What is Rio Tinto Group's current founding date?: March 29, 1873, dated March 29, 1873, from a primary source (riotinto.com). The record asserts this claim as of November 12, 2026 (status valid, confidence 0.95).

Answered from the rows above, as of November 12, 2026.

Cite Rio Tinto Group founding date

Each form names the value, its as-of date (1873-03-29), the day you read it (2026-11-12), the claim's stable URL and id and its primary source. The URL never changes: a superseded claim stays at the same address.

Plain text

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.

APA

AsOf. (1873). Rio Tinto Group founded: 1873-03-29 (as of 1873-03-29) [Record clm_1C74869FC1C1]. Retrieved November 12, 2026, from https://asof.is/claim/clm_1C74869FC1C1 (source: https://www.riotinto.com/en/about/history)

BibTeX

@misc{asof_clm_1C74869FC1C1,
  author = {AsOf},
  title = {Rio Tinto Group founded: 1873-03-29},
  year = {1873},
  howpublished = {\url{https://asof.is/claim/clm_1C74869FC1C1}},
  note = {Claim clm\_1C74869FC1C1, as of 1873-03-29; source: https://www.riotinto.com/en/about/history},
  urldate = {2026-11-12}
}

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/record/rio-tinto/founded.md · this page as markdown
/facts/founded · every company's founding date
/record/rio-tinto · /timelines/rio-tinto

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