Major Subsidiaries and Associated Companies


Metal Products

Japan

Company NameDetails of Business
Hokkaido Shearing Kaisha, Ltd.Fabrication and sale of steel products
Marubeni Itochu Sumisho Techno Steel Inc.Sale of steel products
Mazda Steel Co., Ltd.Shearing, slitting, and sale of steel sheets
Metal One Sumisho Tubular Products Co., Ltd.Processing and sales of steel tubular and other steel products
Ootone Warehouse Co., Ltd.Shearing, slitting, and warehousing of steel sheet products
Sumitomo Corporation Global Metals Co., Ltd.Sales of metal products & metals and services within Japan, import and export, trilateral trade, and domestic and international business investment
Summit-Benichu Coil Center Co., Ltd.Purchase, shearing, slitting, and sale of steel sheets
Summit Steel Co., Ltd.Shearing, slitting, and sale of steel sheets

Overseas

Company Name Details of Business Country/Region
Arkansas Steel Associates, LLC Steel mini mill (Manufacturing of railroad tie plates) U.S.A.
B&L PIPECO SERVICES, INC. Distribution and service of OCTG and related products U.S.A.
Calamba Steel Center Inc. Steel service center (processing and sales) Philippines
CS Metal Co., Ltd. Steel service center (processing and sales) Thailand
EDGEN GROUP INC. Distribution and service of Pipe, Valve, Fittings and related components U.S.A.
ERYNGIUM LIMITED Distribution and Processing of metallic raw materials for Oilfield Equipment, and Manufacturing U.K.
Gerdau Summit Acos Fundidos e Forjados S.A. Manufacture and sales of forging and casting products for industries Brazil
Hanoi Steel Center Co., Ltd. Steel service center (processing and sales) Vietnam
Kimura Foundry Amercia, Inc. Manufacture of prototype casting using 3D printing technology U.S.A.
Mactan Steel Center Inc. Steel service center (processing and sales) Philippines
Mukand Sumi Special Steel Limited Manufacturing and sale of specialty rolled steel and secondary processed specialty steel India
P2 ENERGY SERVICES, LLC Distribution and service of OCTG and related products U.S.A.
PT. Super Steel Karawang Steel service center (processing and sales) Indonesia
S&L Consulting SA Consulting and Engineering for OCTG Switzerland
Saigon Steel Service & Processing Co., Ltd. Steel service center (processing and sales) Vietnam
S and L Consulting USA, Inc. Consulting and Engineering for OCTG U.S.A.
SC GLOBAL TUBULAR SOLUTIONS, LLC A consulting firm for Supply Chain Management operations and acceleration of digital transformation (DX) U.S.A.
Sekal AS For the safety and cost-effective oil and gas development, Sekal software based on a state-of-art physics model enables to figure out precisely a real-time drilling condition as well as to look ahead a future potential risk. These unique characteristics also enable software to manipulate safely drilling equipment in an automatic fashion Norway
Servilamina Summit Mexicana S.A. de C.V. Steel service center (Steel process and sales) Mexico
Steel Center Europe, S.R.O. Shearing, slitting, and sale of steel sheets Czech
Steel Centre (M) Sdn. Bhd. Steel service center (processing and sales), production and sales of steel products of construction Malaysia
Sumiputeh Steel Centre Sdn. Bhd. Steel service center (processing and sales) Malaysia
Sumisho Metal (Thailand) Co., Ltd. Steel service center (processing and sales) Thailand
WEST ODESSA RAIL LOGISTICS, LLC Operation of Summit Industrial Park (West Texas Tubular Distribution Center) U.S.A.
上海頂鋒金属製品有限公司 Shearing, slitting, and sale of steel sheets China
中山市野村鋼材製品有限公司 Steel service center (processing and sales) China
天津華住金属制品有限公司 Shearing, slitting, and sale of steel sheets China
無錫頂鋒日嘉金属制品有限公司 Manufacture, processing and sales of tool steel and semi-finished molds, Heat treatment, Surface treatment China
佛山頂鋒日嘉模具有限公司 Manufacture, processing and sales of tool steel and semi-finished molds, Heat treatment, Surface treatment China
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