WICHITA, Kan. (WICHITA BUSINESS JOURNAL) - Koch Inc. has made millions worth of renovations across its Wichita headquarters campus in the past year to keep up with office upgrades.

Since last September, at least eight building permits valued at an overall $11.57 million have been filed with the Metropolitan Area Building and Construction Department for the building at 4111 E. 37th St. in northeast Wichita.

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