Sumitomo Chemical Co., Ltd.

Join month: August 2021

Website: https://www.sumitomo-chem.co.jp/english/

Member class: Production & Transformation

About a century ago, Sumitomo Chemical got its start by manufacturing fertilizers from gas emitted from copper smelting operations at the Besshi Copper Mine in Niihama of Japan, aiming to solve the environmental problem of smoke pollution while helping to increase agricultural output. We respond to the changing needs of each era, develop a diversified portfolio of businesses, and consistently generate technological innovations, thereby helping people to build better lives.

Our Inorganic Materials Division started its business in 1936 with the refinement of aluminium, and today handles three product lines: alumina, high purity alumina, and aluminium. In regards to the current aluminium business, we import ingots by joining various overseas projects and provide a stable supply to the market, as well as producing high-purity aluminium (99.999% or higher), which is used for highly functional products, such as electrolytic capacitors, liquid crystal displays and semiconductors.

Sumitomo Chemical is very proud to join ASI. As the origin of Sumitomo Chemical, we have placed a priority, above all else, on proving itself worthy of society’s trust. Under this banner, we believe that we will be able to contribute to achieving the objectives of ASI by supporting its various activities.

– Tomoyuki Watanabe, General Manager, Inorganic Materials Division, Sumitomo Chemical Co., Ltd.

Certifications

Performance Standard V3 (2022)

• Certificate Number: 320
• Certification Period: 28.11.2023 - 27.11.2026
• Audit Report

Certification scope:

• Production of high purity aluminium, chemical aluminium hydroxide, chemical alumina, and high purity alumina, including on-site activities of an Outsourcing Contractor, and the re-sale of aluminium hydroxide and primary aluminium ingots at Ehime Works (Japan).

Audit scope supply chain activities:

• Alumina Refining
• Aluminium Re-melting/Refining
• Material Conversion (Production and Transformation)

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Chain of Custody Standard V2 (2022)

• Certificate Number: 321
• Certification Period: 28.11.2023 - 27.11.2026
• Audit Report

Certification scope:

• Production of high purity aluminium, chemical aluminum hydroxide, chemical alumina, and high purity alumina in Ehime Works (Japan).

Audit scope supply chain activities:

• Alumina Refining
• Aluminium Re-melting/Refining
• Casthouses