Filed Pursuant to Rule 433

Registration Nos. 333-193891 and 333-194308

March 4, 2014

Issuer:

CHS Inc.

Title:

Class B Reset Rate Cumulative Redeemable Preferred Stock, Series 2 (the “Class B Series 2 Preferred Stock”)

Shares Offered:

14,608,696 shares

Over-allotment Option:

2,191,304 shares

Trade Date:

March 4, 2014

Settlement Date:

March 11, 2014 (T+5)

Dividend Rate:

Dividends on the Class B Series 2 Preferred Stock will be cumulative from, and including, March 11, 2014 and, if, when and as declared by the Issuer’s Board of Directors at its election, will be payable quarterly in arrears on March 31, June 30, September 30 and December 31 of each year, commencing on June 30, 2014, at the rate of 7.100% of the liquidation preference of $25.00 per share per annum (equivalent to $1.775 per share per annum) to, but excluding, March 31, 2024, and thereafter, at an annual rate equal to three-month LIBOR, as determined for the applicable quarterly Dividend Period (as defined in the preliminary prospectus dated February 26, 2014 (the “Preliminary Prospectus”)), plus a spread of 4.298%, or 429.8 basis points, but in no event will the sum of such annual rate and spread be greater than 8% per annum.

Three-Month LIBOR

As determined on the Reset Rate Determination Date (as defined below) for the applicable quarterly Dividend Period, means the offered rate for deposits in U.S. dollars having a maturity of three months that appears on the Designated LIBOR Page (as defined in the Preliminary Prospectus) as of 11:00 a.m., London time, on such Reset Rate Determination Date. If such rate does not appear on such page at such time, then the Calculation Agent will request the principal London office of each of four major reference banks in the London interbank market, selected by the Calculation Agent, to provide such bank’s offered quotation to prime banks in the London interbank market for deposits in U.S. dollars with a term of three months as of 11:00 a.m., London time, on such Reset Rate Determination Date and in a principal amount equal to an amount that, in the judgment of the Calculation Agent, is representative for a single transaction in U.S. dollars in the relevant market at the relevant time (a “Representative Amount”). If at least two such quotations are so provided, three-month LIBOR for the quarterly Dividend Period related to such Reset Date Determination Date will be the arithmetic

mean of such quotations. If fewer than two such quotations are provided, the Calculation Agent will request each of three major banks in The City of New York to provide such bank’s rate for loans in U.S. dollars to leading European banks with a term of three months as of approximately 11:00 a.m., New York City time, on such Reset Rate Determination Date and in a Representative Amount. If at least two such rates are so provided, three-month LIBOR for the quarterly Dividend Period related to such Reset Rate Determination Date will be the arithmetic mean of such rates. If fewer than two such rates are so provided, then three-month LIBOR for the quarterly Dividend Period related to such Reset Rate Determination Date will be set to equal the three-month LIBOR for the quarterly Dividend Period in which such Reset Rate Determination Date falls or, in the case of the quarterly Dividend Period commencing on March 31, 2024 (the “First Reset Date”), 2.802%. “Reset Rate Determination Date” means the second London Banking Day (as defined in the Preliminary Prospectus) immediately preceding the first day of each relevant quarterly Dividend Period commencing on the First Reset Date.

Dividend Payment Dates:

Dividends on the Class B Series 2 Preferred Stock shall accumulate from, and including, March 11, 2014 and, if, when and as declared by the Issuer’s Board of Directors at its election, shall be payable quarterly in arrears on March 31, June 30, September 30 and December 31. The first dividend on the Class B Series 2 Preferred Stock will be payable on June 30, 2014.

Stated Maturity:

Perpetual (unless redeemed or repurchased by the Issuer for cash as contemplated below)

Redemption at the Option of the Issuer:

The Class B Series 2 Preferred Stock will not be redeemable by the Issuer prior to March 31, 2024. On and after March 31, 2024, the Issuer, at its option, may redeem the Class B Series 2 Preferred Stock for cash, in whole or in part, at a per share redemption price equal to the per share liquidation preference of $25.00, plus all dividends accumulated and unpaid on that share to, and including, the date of redemption, payable in cash, to the extent the Issuer has funds legally available therefor.

Repurchase at the Option of the Holders:

If at any time there has been a change in control (as defined in the Preliminary Prospectus), each holder of shares of the Class B Series 2 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 2 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), 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:

Wells Fargo Bank, N.A.

Public Offering Price:

$25.00 per share

CUSIP / ISIN:

12542R 506 / US12542R5063

Listing:

NASDAQ Stock Market / CHSCN

Underwriters:

Joint Book-Running Managers

Merrill Lynch, Pierce, Fenner & Smith

Incorporated

Wells Fargo Securities, LLC

Lead Manager

D.A. Davidson & Co.