The Kansas City Board of Trade has been at the Main Street location for 56 years, but chairman Steven Campbell believed the complex regulatory requirements and operational demands meant that a partnership represented the best chance for future success. While this may allow the KCBT to compete in an increasingly technical marketplace, the brick-and-mortar future of the exchange is less certain. Under the terms of the signed agreement, the trading floor will remain open for at least six months and "a committee of market participants" is slated to advise CME for a minimum period of three years. The board of directors has approved the sale, which now must be signed off on by KCBT shareholders and regulators. The KCBT membership will receive a special distribution of excess cash if the deal closes as it's expected to later this year.