Global Site


Parent Companies

Sumitomo Corporation

Sumitomo Corporation is a leading global trading company.  The SC business is continuously expanding into a diverse range of products and services.  Its core business units are Metal Products, Transportation & Construction systems, Environment & Infrastructure, Media, Network, Lifestyle Related Goods & Services, Mineral Resources, Energy, and Chemical & Electronics.
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Sumitomo Corporation of Americas

Sumitomo Corporation of Americas is the largest wholly owned subsidiary of Sumitomo Corporation, with a network of office in 10 major U.S. cities and more than 75 subsidiaries and affiliates.
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Other Affiliates

Pacific Summit Energy, LLC

Pacific Summit Energy LLC (“PSE”) is a natural gas, electricity and crude oil commodity marketing and trading company with offices in Newport Beach, CA, The Woodlands, TX, and Richmond, VA.  Formed in 2004 by SC and SCOA, PSE, together with Summit Discovery Resources (, are a part of the core companies which have expanded Sumitomo’s presence in the North American energy industry. 
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Hermiston Generating Plant (HGP) is located in northeastern Oregon, nine miles south of the Columbia River. HGP is a 474 megawatt highly reliable modern natural gas fueled power plant that provides power for nearly 500,000 households in the Pacific Northwest. The plant also provides steam to Lamb-Weston's adjacent potato processing plant.

Hermiston Generating Plant
78145 Westland Road,
Hermiston, OR 97838

Bradley Knight
General Manager