Komori
Other Disclosures5019Idemitsu Kosan Co.,Ltd.Energy Resources

Idemitsu Group achieves integrated production, from oil derived from used plastics to naphtha

The Company has established a system under which chemical recycling oil produced by a subsidiary from waste plastics is refined at Idemitsu Kosan's Chiba Site and processed through to naphtha.

Worth reading
67In focus
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Direction
Improvement
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Wording
Definitive
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Announced details

Chemical recycling oil (CR oil)Naphtha derived from waste plastics
Applicable field (uses covered by this announcement)

Raw materials for petrochemical products, products such as plastics, and resource circulation

Launch dateApril 2026 (commercial operations and CR oil production began at the CRJ Ichihara Site; the achievement of naphtha production was announced on 28 September 2026)
Relationship between the counterparty and the company
Idemitsu Kosan Co.,Ltd.5019
Relationship with the Company

ケミカルリサイクル・ジャパン株式会社 is a subsidiary of the Company. It produces CR oil at the CRJ Ichihara Site, while the Company processes it and produces naphtha at its Chiba Site.

Location (as indicated in this announcement)

CRJ Ichihara Site: Not disclosed; the Company's Chiba Site: Ichihara, Chiba Prefecture

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Announced details
ItemDetails
Names of Products / Services CoveredChemical recycling oil (CR oil), Naphtha derived from waste plastics
Relationship with the Companyケミカルリサイクル・ジャパン株式会社 is a subsidiary of the Company. It produces CR oil at the CRJ Ichihara Site, while the Company processes it and produces naphtha at its Chiba Site.
Launch dateApril 2026 (commercial operations and CR oil production began at the CRJ Ichihara Site; the achievement of naphtha production was announced on 28 September 2026)
Applicable areaRaw materials for petrochemical products, products such as plastics, and resource circulation
LocationCRJ Ichihara Site: Not disclosed; the Company's Chiba Site: Ichihara, Chiba Prefecture
Items this document does not state (13)
CounterpartyCounterparty overviewContract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation scaleQuantitative EffectsUsage historyImpact on Business PerformanceSource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To establish a supply system for resource-circulating chemical recycling products, give concrete form to the circular business, and promote the resource circulation of waste plastics.

How to read this page

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Idemitsu Group achieves integrated production, from oil derived from used plastics to naphtha | Idemitsu Kosan Co.,Ltd. (5019) timely disclosure | Komori