Steel Authority of India Limited
E662240
Steel Authority of India Limited is a leading Indian state-owned steelmaking company and one of the country’s largest steel producers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Steel Authority of India Limited canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T7400283 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Steel Authority of India Limited Context triple: [Rourkela industrial region, majorCompany, Steel Authority of India Limited]
-
A.
ArcelorMittal Nippon Steel India
ArcelorMittal Nippon Steel India is a major Indian steel manufacturer formed as a joint venture between global steel giants ArcelorMittal and Nippon Steel, operating integrated steel plants and serving domestic and international markets.
-
B.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
-
C.
Tata Steel Jamshedpur Works
Tata Steel Jamshedpur Works is a major integrated steel plant in Jamshedpur, India, and one of the oldest and most significant industrial complexes in the country.
-
D.
Coal India Limited
Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
-
E.
Tata Steel
Tata Steel is one of India’s largest and oldest steel manufacturing companies, known for its integrated steel plants, global operations, and pioneering role in the country’s industrial development.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Steel Authority of India Limited Target entity description: Steel Authority of India Limited is a leading Indian state-owned steelmaking company and one of the country’s largest steel producers.
-
A.
ArcelorMittal Nippon Steel India
ArcelorMittal Nippon Steel India is a major Indian steel manufacturer formed as a joint venture between global steel giants ArcelorMittal and Nippon Steel, operating integrated steel plants and serving domestic and international markets.
-
B.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
-
C.
Tata Steel Jamshedpur Works
Tata Steel Jamshedpur Works is a major integrated steel plant in Jamshedpur, India, and one of the oldest and most significant industrial complexes in the country.
-
D.
Coal India Limited
Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
-
E.
Tata Steel
Tata Steel is one of India’s largest and oldest steel manufacturing companies, known for its integrated steel plants, global operations, and pioneering role in the country’s industrial development.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
public sector undertaking
ⓘ
state-owned enterprise ⓘ steelmaking company ⓘ |
| abbreviation | SAIL NERFINISHED ⓘ |
| areaServed | India NERFINISHED ⓘ |
| businessModel | integrated steel production ⓘ |
| country | India ⓘ |
| foundedBy | Government of India NERFINISHED ⓘ |
| hasDivision | Research and Development Centre for Iron and Steel NERFINISHED ⓘ |
| hasFacility |
integrated steel plants
ⓘ
special steel plants ⓘ |
| hasSubsidiary |
Alloy Steels Plant, Durgapur
NERFINISHED
ⓘ
Bhilai Steel Plant NERFINISHED ⓘ Bokaro Steel Plant NERFINISHED ⓘ Central Marketing Organisation NERFINISHED ⓘ Durgapur Steel Plant NERFINISHED ⓘ IISCO Steel Plant NERFINISHED ⓘ Raw Materials Division NERFINISHED ⓘ Rourkela Steel Plant NERFINISHED ⓘ Salem Steel Plant NERFINISHED ⓘ Visvesvaraya Iron and Steel Plant NERFINISHED ⓘ |
| headquartersLocation |
New Delhi, India
ⓘ
surface form:
New Delhi
|
| inception | 1973 ⓘ |
| industry | steel ⓘ |
| isOneOf | largest steel producers in India ⓘ |
| keyProductUser | Indian Railways NERFINISHED ⓘ |
| legalForm | public limited company ⓘ |
| numberOfEmployees | over 60,000 ⓘ |
| ownedBy | Government of India ⓘ |
| parentOrganization | Ministry of Steel, Government of India NERFINISHED ⓘ |
| primaryRawMaterial |
coking coal
ⓘ
iron ore ⓘ limestone ⓘ |
| product |
alloy steel
ⓘ
carbon steel ⓘ pig iron ⓘ plates ⓘ rails ⓘ sheets ⓘ stainless steel ⓘ structural steel ⓘ wire rods ⓘ |
| regulator | Ministry of Steel, Government of India NERFINISHED ⓘ |
| sector | public sector ⓘ |
| stockExchangeListing |
Bombay Stock Exchange
NERFINISHED
ⓘ
National Stock Exchange of India NERFINISHED ⓘ |
| tickerSymbol | SAIL NERFINISHED ⓘ |
| website | https://www.sail.co.in ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Steel Authority of India Limited Description of subject: Steel Authority of India Limited is a leading Indian state-owned steelmaking company and one of the country’s largest steel producers.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.