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Steel Dynamics

Begin production at the Sinton Steel Mill

Delivered after the deadline

AI-confirmed · human review in progress Independent AI checks agreed on primary SEC or regulator evidence. Records are now being reviewed by hand, starting with those our customers order.

Announced
19 Apr 2021
Due
30 Sep 2021
Delivered
by 1 Jan 2022
  • Deadline
  • Met
  • Late
  • Not met
  • Today

What the company said

“Sinton Steel Mill that is planned to begin production in late summer 2021.”

What we found

Evidence strength A What the grades mean

The company stated in its 2022 10-K that while certain coating operations began in late 2021, the rest of the Sinton Steel Mill operations commenced in early 2022, missing the late summer 2021 target.

  • A
    Steel Dynamics 8-K filed 2021-10-21 Regulatory filing · published 21 Oct 2021 · retrieved 18 Oct 2026 · kept permanently by the SEC · fingerprint 08a379f36ac8
    “Actual steel production is still planned to start before the end of 2021” ✓ confirmed on the page
  • A
    Steel Dynamics 10-K filed 2022-02-28 Regulatory filing · published 28 Feb 2022 · retrieved 18 Oct 2026 · kept permanently by the SEC · fingerprint 0b5222c85d50
    “Southwest-Sinton Flat Roll Division is nearing the conclusion of construction, with certain coating operations commenced in late 2021, and the rest of operations commencing in early 2022.” ✓ confirmed on the page

Market reaction: the shares moved +2.4% against the S&P 500 over the three sessions around the disclosure (20 Oct 2021 to 25 Oct 2021). What this measures

Checked 18 Oct 2026.

Commitment lineage

Every time the company restated this commitment. The original is never changed, and the outcome is always measured against version 1.

  • Deadline drift +92 days
  • 2 versions
  1. Version 1 · original · stated 19 Apr 2021

    Deadline 30 Sep 2021 (“late summer 2021”) · wording expected

  2. Version 2 · stated 21 Jul 2021

    Deadline 31 Dec 2021 (“mid fourth quarter 2021”) · wording expected

    “actual steel production will be delayed and is now planned to start mid fourth quarter 2021.”

    Source for this version

Commitment DNA

The structured record of this commitment. Fields the company did not state are left blank rather than guessed.

Event type
Production start
Indicative materiality
High rules
Action
Begin
Deliverable
Sinton Steel Mill
Where
Texas
Language
Expected (“expects”, “plans”)
In the company’s control
High
Specificity
High

How this entry was checked

  1. Commitment recordedThe company's words were matched word for word against the filing.
  2. First checkAn AI model, Gemini (Google), read the company's later filings and recorded the outcome with a quoted passage.
  3. Second check: disagreesClaude (Anthropic) re-read the evidence blind and read it as “Not met”.
  4. Tie-breakA stronger model read the evidence and both earlier answers, without knowing which was recorded, and agrees with the recorded outcome.

Confirmed. This outcome counts towards the company's Kept Score. How verification works

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Report an error in this entry Reference: KI-C-2021-STLD-015426 · Corrections policy

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