Common use of Repurchase at the Option of the Holders Clause in Contracts

Repurchase at the Option of the Holders. If at any time there has been a change in control (as defined in the Preliminary Prospectus Supplement), each holder of shares of the Class B Series 3 Preferred Stock will have the right, for a period of 90 days from the date of the change in control, to require the Issuer to redeem all or any portion of the shares of Class B Series 3 Preferred Stock owned by that holder. Not later than 130 days after the date of the change in control (or, if that date is not a Business Day (as defined in the Preliminary Prospectus Supplement), the next succeeding Business Day) the Issuer will redeem all shares holders have elected to require the Issuer to redeem in a written notice delivered to the Issuer on or prior to the 90th day after the change in control. The redemption price per share will be equal to the per share liquidation preference of $25.00 per share, plus all dividends accumulated and unpaid thereon, whether or not declared, to, and including, the date of redemption. Transfer Agent, Registrar, Calculation Agent and Dividend Paying Agent: ▇▇▇▇▇ Fargo Bank, N.A. Public Offering Price: $25.00 per share CUSIP / ISIN: 12542R 704 / US12542R7044 Listing: NASDAQ Stock Market / CHSCM Underwriters: Joint Book-Running Managers ▇▇▇▇▇▇▇ Lynch, Pierce, ▇▇▇▇▇▇ & ▇▇▇▇▇ Incorporated ▇▇▇▇▇ Fargo Securities, LLC Lead Managers ▇.▇. ▇▇▇▇▇▇▇▇ & Co. ▇.▇. ▇▇▇▇▇▇ Securities LLC

Repurchase at the Option of the Holders. If at any time there has been a change in control (as defined in the Preliminary Prospectus Supplement), each holder of shares of the Class B Series 3 4 Preferred Stock will have the right, for a period of 90 days from the date of the change in control, to require the Issuer to redeem all or any portion of the shares of Class B Series 3 4 Preferred Stock owned by that holder. Not later than 130 days after the date of the change in control (or, if that date is not a Business Day (as defined in the Preliminary Prospectus Supplement), the next succeeding Business Day) the Issuer will redeem all shares holders have elected to require the Issuer to redeem in a written notice delivered to the Issuer on or prior to the 90th day after the change in control. The redemption price per share will be equal to the per share liquidation preference of $25.00 per share, plus all dividends accumulated and unpaid thereon, whether or not declared, to, and including, the date of redemption. Transfer Agent, Registrar, Calculation Agent and Dividend Paying Agent: ▇▇▇▇▇ Fargo Bank, N.A. Public Offering Price: $25.00 per share CUSIP / ISIN: 12542R 704 803 / US12542R7044 US12542R8034 Listing: NASDAQ Stock Market / CHSCM Underwriters: Joint Book-Running Managers CHSCL ▇▇▇▇▇▇▇ Lynch, Pierce, ▇▇▇▇▇▇ & ▇▇▇▇▇ Incorporated ▇▇▇▇▇ Fargo Securities, LLC Lead Managers ▇.▇. ▇▇▇▇▇▇▇▇ & Co. ▇.▇. ▇▇▇▇▇▇ Securities LLC