Cascade Natural Gas will have a ribbon-cutting for its new corporate office at 10 a.m. Thursday, 8113 W. Grandridge Blvd. in Kennewick.
The company announced in June that it planned to move its main office from Seattle to Kennewick.
The natural gas company serves about 255,000 residential, commercial and transportation customers in Washington and Oregon.
The company was purchased in 2007 by North Dakota-based MDU Resources Group.
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