Read This First

            Office of Thrift Supervision Guidance for Accountholders


     Your  financial  institution  is in the  process  of  selling  stock to the
public,  in  either  a  mutual-to-stock  conversion  or a  stock  issuance  by a
subsidiary of a mutual holding company. As an accountholder at this institution,
you have certain priority subscription rights to purchase stock in the offering.
These priority  subscription rights are  non-transferable.  If you subscribe for
stock,  you will be asked to sign a statement  that the purchase is for your own
account,  and  that  you  have  no  agreement  or  understanding  regarding  the
subsequent sale or transfer of any shares you receive.

     On occasion,  unscrupulous  people  attempt to persuade  accountholders  to
transfer subscription rights, or to purchase shares in the offering based on the
understanding  that the shares will subsequently be transferred to others.  Such
arrangements violate federal  regulations.  If you participate in these schemes,
you are breaking the law and may be subject to prosecution.  If someone attempts
to persuade you to participate in such a scheme, please contact Office of Thrift
Supervision (OTS) at (404) 888-0771. OTS is very interested in ensuring that the
prohibitions on transfer of subscription rights are not violated.

     How will you  know if you are  being  approached  illegally?  Typically,  a
fraudulent  opportunist  will  approach  you and  offer to  "loan"  you money to
purchase a  significant  amount of stock in the  offering.  In exchange for that
"loan" you most  likely will be asked  either to  transfer  control of any stock
purchased with that money to an account the other person  controls,  or sell the
stock and give the majority of the profits to the other person. You may be told,
untruthfully,  that there is no risk to you,  that the  practice is common,  and
even if you are caught, that your legal expenses will be covered.

     On the back of this  page is a list of some key  concepts  that you  should
keep in mind  when  considering  whether  to  participate  in a  mutual-to-stock
conversion or stock issuance by a mutual holding company subsidiary. If you have
questions,  please contact the stock information  center listed elsewhere in the
literature   you  are   receiving.   Alternatively,   you  can  contact  us  at:
ombudsman@ots.treas.gov.



What Investors Need to Know

     Key concepts  for  investors  to bear in mind when  considering  whether to
participate in a conversion  offering,  or a stock offering by a subsidiary of a
mutual holding company, include the following:

     o    Know the Rules By law,  accountholders  cannot sell or transfer  their
          priority  subscription  rights,  or the  stock  itself,  prior  to the
          completion  of  a  financial   institution's   conversion.   Moreover,
          accountholders cannot enter into agreements or arrangements to sell or
          transfer either their subscription rights or the underlying conversion
          stock.

     o    "Neither  a Borrower  nor a Lender  Be" If someone  offers to lend you
          money so that  you can  participate  or  participate  more  fully in a
          conversion,  be extremely wary. Be even more wary if the source of the
          money is  someone  you do not know.  The loan  agreement  may make you
          unable  to  certify  truthfully  that you are the true  holder  of the
          subscription  rights and the true  purchaser of the stock and that you
          have no agreements regarding the sale or transfer of the stock.

     o    Watch Out for  Opportunists - The  opportunist may tell you that he or
          she is a lawyer - or a consultant or a  professional  investor or some
          similarly  impressive  tale - who has  experience  with similar mutual
          conversion transactions.  The opportunist may go to extreme lengths to
          assure you that the  arrangement  you are entering into is legitimate.
          They might tell you that they have done  scores of these  transactions
          and that this is simply how they  work.  Or they  might  downplay  the
          warnings or restrictions in the prospectus or order form,  telling you
          that "everyone"  enters into such agreements or that the deal they are
          offering is  legitimate.  They may also tell you that you have no risk
          in the  transaction.  The cold, hard truth is that these are lies, and
          if you participate, you are breaking the law.

     o    Get the Facts  from the Source - If you have any  questions  about the
          securities  offering,  ask the savings bank or savings association for
          more information.  If you have any doubts about a transaction proposed
          to you by someone  else,  ask the  financial  institution  whether the
          proposed  arrangement  is  proper.  You may be  able  to find  helpful
          resources on the institution's website or by visiting a branch office.

          The  bottom  line for  investors  is  always  to  remember  that if an
          opportunity  sounds too good to be true, it probably is too good to be
          true.



                               MSB Financial Corp.

                               Logo as Applicable

                               Holding Company for

                             Millington Savings Bank





THE SHARES OF COMMON  STOCK BEING  OFFERED ARE NOT SAVINGS  ACCOUNTS OR DEPOSITS
AND ARE NOT INSURED OR  GUARANTEED BY MSB FINANCIAL  CORP.,  MILLINGTON  SAVINGS
BANK,  THE  FEDERAL  DEPOSIT  INSURANCE  CORPORATION,  THE  SAVINGS  ASSOCIATION
INSURANCE FUND OR ANY OTHER GOVERNMENTAL AGENCY.

THIS IS NOT AN OFFER TO SELL OR A SOLICITATION  OF AN OFFER TO BUY COMMON STOCK.
THE OFFER IS MADE ONLY BY THE PROSPECTUS.



ABOUT THE STOCK OFFERING


The  Board  of  Directors  of MSB  Financial  Corp.,  the  holding  company  for
Millington Savings Bank,  unanimously  adopted a Plan of Stock Issuance to issue
stock to certain  Millington Savings Bank depositors and possibly members of the
community (the "Offering").

This brochure  answers some of the most  frequently  asked  questions  about the
Offering  and  about  your  opportunity  to invest  in the  common  stock of MSB
Financial Corp.

Investment in the common stock of MSB Financial  Corp.  involves  certain risks.
For a  discussion  of these  risks  and  other  factors,  including  a  complete
description  of the  offering,  prospective  investors  are  urged  to read  the
accompanying  prospectus,  especially  the  discussion  under the heading  "Risk
Factors."

WHAT EFFECT WILL THE STOCK  ISSUANCE HAVE ON EXISTING  DEPOSIT AND LOAN ACCOUNTS
AND CUSTOMER RELATIONSHIPS?
- --------------------------------------------------------------------------------
The stock issuance will have little effect on existing  deposit or loan accounts
and customer  relationships.  Deposits will continue to be federally  insured by
the Federal Deposit Insurance  Corporation to the maximum legal limit.  Interest
rates and existing terms and conditions on deposit accounts will remain the same
upon completion of the stock issuance.  Contractual  obligations of borrowers of
Millington  Savings  Bank will not  change  and  there  will be no change in the
amount, interest rate, maturity, security or any other condition relating to the
respective loans of customers.

WILL  MILLINGTON  SAVINGS BANK  DEPOSITORS BE REQUIRED TO PURCHASE  STOCK IN THE
OFFERING?
- --------------------------------------------------------------------------------
No  depositor or other person is required to purchase  stock.  However,  certain
depositors  will be provided the  opportunity to purchase stock  consistent with
the established  priority of  subscription  rights,  should they so desire.  The
decision to purchase stock will be exclusively  that of each person.  Whether an
individual



decides to purchase stock or not will have no impact on his or her standing as a
customer of  Millington  Savings  Bank.  The stock  issuance  will allow certain
depositors of  Millington  Savings Bank an  opportunity  to buy common stock and
become stockholders of MSB Financial Corp.

WHO IS ELIGIBLE TO PURCHASE COMMON SHARES IN THE SUBSCRIPTION OFFERING?
- --------------------------------------------------------------------------------
Certain past and present  depositors of Millington  Savings Bank are eligible to
purchase common stock in the  subscription  offering.  Specifically,  depositors
with $50 or more as of June 30, 2005, September 30, 2006 or October 31, 2006 are
eligible to subscribe.

HOW MANY COMMON SHARES ARE BEING OFFERED AND AT WHAT PRICE?
- --------------------------------------------------------------------------------
MSB Financial Corp. is offering up to 2,199,375 shares of common stock,  subject
to an increase of up to 2,529,281 shares, at a price of $10.00 per share through
the prospectus.

HOW MANY SHARES MAY I BUY?
- --------------------------------------------------------------------------------
The  minimum  order is 25 shares.  The  maximum  individual  purchase  is 20,000
shares.  No person,  together with  associates of, and persons acting in concert
with that person,  may purchase more than 25,000 shares, as further discussed in
the prospectus.

WILL THE COMMON STOCK BE INSURED?
- --------------------------------------------------------------------------------
No. Like any other common stock, MSB Financial  Corp.'s common stock will not be
insured.

HOW DO I ORDER THE COMMON STOCK?
- --------------------------------------------------------------------------------
You must complete the enclosed Stock Order and Certification Form.  Instructions
for  completing  your Stock Order and  Certification  Form are contained in this
packet. Your order must be received by 12:00 noon, Eastern Time, on December __,
2006.

HOW MAY I PAY FOR MY COMMON STOCK?
- --------------------------------------------------------------------------------
First,  you may pay for common stock by check or money order.  Interest  will be
paid by Millington  Savings Bank on these funds at the regular  passbook



savings  rate from the day the  funds  are  received  until  the  completion  or
termination  of the stock  issuance.  Second,  you may  authorize us to withdraw
funds from your deposit account or certificate of deposit at Millington  Savings
Bank for the amount of funds you specify for  payment.  You will not have access
to  these  funds  from  the  day we  receive  your  order  until  completion  or
termination of the stock  issuance.  There is no penalty for  withdrawal  from a
certificate of deposit.

CAN I PURCHASE STOCK USING FUNDS IN MY MILLINGTON SAVINGS BANK IRA ACCOUNT?
- --------------------------------------------------------------------------------
Federal  regulations  do not permit the purchase of common  stock in  connection
with the stock issuance from your existing  Millington Savings Bank IRA account.
In order to utilize the funds in your  Millington  Savings  Bank IRA account for
the  purchase  of  MSB  Financial  Corp.   common  stock,  you  must  execute  a
trustee-to-trustee  transfer with a self-directed  IRA provider.  Please contact
your  broker or  self-directed  IRA  provider as soon as possible if you want to
explore this option.

WILL DIVIDENDS BE PAID ON THE COMMON STOCK?
- --------------------------------------------------------------------------------
The Board of Directors of MSB Financial  Corp. has not yet determined what their
dividend policy will be after the offering. The timing, frequency and amount (if
any) of any dividends will be determined by the Board in the future.

HOW WILL THE COMMON STOCK BE TRADED?
- --------------------------------------------------------------------------------
MSB  Financial  Corp.'s  stock is expected to trade on the NASDAQ  Global Market
under the ticker symbol "MSBF".

ARE  EXECUTIVE  OFFICERS AND  DIRECTORS OF  MILLINGTON  SAVINGS BANK PLANNING TO
PURCHASE STOCK?
- --------------------------------------------------------------------------------
Yes! The executive  officers and  directors of  Millington  Savings Bank plan to
purchase,  in the aggregate,  $1,320,000 worth of stock or approximately 3.1% of
the common stock offered at the midpoint of the offering range.



MUST I PAY A COMMISSION?
- --------------------------------------------------------------------------------
No. You will not be charged a commission  or fee on the purchase of common stock
in the subscription offering.



- --------------------------------------------------------------------------------


                            STOCK INFORMATION CENTER

For additional  information you may visit or call our stock  information  center
Monday through Friday from 8:30 a.m. to 3:00 p.m., located in Millington Savings
Bank's office at 1902 Long Hill Road, Millington, New Jersey 07946.


                                 (877) 274-2040


- --------------------------------------------------------------------------------





- --------------------------------------------------------------------------------

                                    QUESTIONS

                                       AND


                                     ANSWERS


- --------------------------------------------------------------------------------



[LOGO] KBW      Keefe,  Bruyette & Woods
                Specialists in Financial Services


November __, 2006



To Depositors and Friends of Millington Savings Bank
- --------------------------------------------------------------------------------

Keefe,  Bruyette  &  Woods,  Inc.,  a  member  of the  National  Association  of
Securities Dealers, Inc., is assisting MSB Financial Corp., the mid-tier holding
company for Millington Savings Bank, in a subscription and community offering to
certain  depositors of Millington Savings Bank, an employee stock ownership plan
established  by  Millington  Savings  Bank,  and members of the  general  public
pursuant to the stock offering.

At the request of Millington Savings Bank, we are enclosing materials explaining
this process and your options,  including an opportunity to subscribe for shares
of MSB Financial Corp. common stock until 12:00 Noon,  Eastern Time, on December
__, 2006. Please read the enclosed offering materials  carefully,  including the
Prospectus, for a complete description of the stock offering.

If you have any questions,  please visit our Stock Information Center located at
1902 Long Hill Road,  Millington,  New Jersey 07946,  Monday through Friday from
8:30 a.m.  to 3:00 p.m.,  or feel free to call the Stock  Information  Center at
(877) 274-2040.

Very truly yours,




Keefe, Bruyette & Woods, Inc.




THESE  SECURITIES  ARE NOT  DEPOSITS OR SAVINGS  ACCOUNTS AND ARE NOT INSURED OR
GUARANTEED BY THE FEDERAL  DEPOSIT  INSURANCE  CORPORATION,  MILLINGTON  SAVINGS
BANK, MSB FINANCIAL CORP., MSB FINANCIAL,  MHC OR ANY GOVERNMENTAL  AGENCY. THIS
IS NOT AN OFFER TO SELL OR A SOLICITATION  OF AN OFFER TO BUY COMMON STOCK.  THE
OFFER IS MADE ONLY BY THE PROSPECTUS.



November __, 2006


Dear Depositor:

We are  pleased to announce  that MSB  Financial  Corp.,  the  mid-tier  holding
company for Millington  Savings Bank, is offering common stock in a subscription
offering to certain  depositors  of Millington  Savings Bank. An employee  stock
ownership plan established by Millington Savings Bank may also purchase stock in
the  subscription  offering.  If shares remain  available after the subscription
offering, then the general public will have an opportunity to purchase shares of
common stock in a community offering.

You should be aware that:

     >    Your deposit  accounts at Millington  Savings Bank will continue to be
          insured up to the maximum legal limit by the Federal Deposit Insurance
          Corporation.

     >    The offering will not cause a change in the balance,  interest rate or
          maturity of any deposit account or loan with Millington Savings Bank.

     >    You have a right  to order  shares  in the  offering,  but you are not
          obligated to buy any stock of MSB Financial Corp.

     >    Like all stock,  shares of MSB  Financial  Corp.  common stock are not
          insured by the FDIC.

Enclosed is a prospectus that discusses the stock offering.  We urge you to read
this document carefully. If you are interested in purchasing the common stock of
MSB Financial Corp., you must submit your Stock Order and Certification Form and
payment prior to 12:00 Noon, Eastern Time, on December __, 2006.

If you  have any  questions  regarding  the  offering,  please  call us at (877)
274-2040,  Monday  through  Friday from 8:30 a.m.  to 3:00 p.m.,  or stop by our
Stock  Information  Center  located  at 1902 Long Hill Road in  Millington,  New
Jersey.


Sincerely,



Gary T. Jolliffe
President and Chief Executive Officer


THESE  SECURITIES  ARE NOT  DEPOSITS OR SAVINGS  ACCOUNTS AND ARE NOT INSURED OR
GUARANTEED BY THE FEDERAL  DEPOSIT  INSURANCE  CORPORATION,  MILLINGTON  SAVINGS
BANK, MSB FINANCIAL CORP., MSB FINANCIAL,  MHC OR ANY GOVERNMENTAL  AGENCY. THIS
IS NOT AN OFFER TO SELL OR A SOLICITATION  OF AN OFFER TO BUY COMMON STOCK.  THE
OFFER IS MADE ONLY BY THE PROSPECTUS.



November __, 2006



Dear Friend:

We are  pleased to announce  that MSB  Financial  Corp.,  the  mid-tier  holding
company for Millington  Savings Bank, is offering common stock in a subscription
offering to certain current and former depositors of Millington Savings Bank. An
employee stock  ownership plan  established by Millington  Savings Bank may also
purchase stock in the  subscription  offering.  If shares remain available after
the subscription  offering,  then the general public will have an opportunity to
purchase shares of common stock in a community offering.

You should be aware that:

     >    As a  former  depositor,  you  have a right  to  order  shares  in the
          offering,  but you are not obligated to buy any stock of MSB Financial
          Corp.

     >    Like all stock,  shares of MSB  Financial  Corp.  common stock are not
          insured by the FDIC.

Enclosed is a prospectus that discusses the stock offering.  We urge you to read
this document carefully. If you are interested in purchasing the common stock of
MSB Financial Corp., you must submit your Stock Order and Certification Form and
payment prior to 12:00 Noon, Eastern Time, on December __, 2006.

If you  have any  questions  regarding  the  offering,  please  call us at (877)
274-2040,  Monday  through  Friday from 8:30 a.m.  to 3:00 p.m.,  or stop by our
Stock  Information  Center  located  at 1902 Long Hill Road in  Millington,  New
Jersey.

Sincerely,



Gary T. Jolliffe
President and Chief Executive Officer


THESE  SECURITIES  ARE NOT  DEPOSITS OR SAVINGS  ACCOUNTS AND ARE NOT INSURED OR
GUARANTEED BY THE FEDERAL  DEPOSIT  INSURANCE  CORPORATION,  MILLINGTON  SAVINGS
BANK, MSB FINANCIAL CORP., MSB FINANCIAL,  MHC OR ANY GOVERNMENTAL  AGENCY. THIS
IS NOT AN OFFER TO SELL OR A SOLICITATION  OF AN OFFER TO BUY COMMON STOCK.  THE
OFFER IS MADE ONLY BY THE PROSPECTUS.



November __, 2006

Dear Prospective Investor:

We are  pleased to announce  that MSB  Financial  Corp.,  the  mid-tier  holding
company for Millington  Savings Bank, is offering common stock in a subscription
offering to certain current and former depositors of Millington Savings Bank. An
employee stock  ownership plan  established by Millington  Savings Bank may also
purchase stock in the  subscription  offering.  If shares remain available after
the subscription  offering,  then the general public will have an opportunity to
purchase shares of common stock in a community offering.

You should be aware that, like all stock,  shares of MSB Financial Corp.  common
stock are not insured by the FDIC.

Enclosed is a prospectus that discusses the stock offering.  We urge you to read
this document carefully. If you are interested in purchasing the common stock of
MSB Financial Corp., you must submit your Stock Order and Certification Form and
payment prior to 12:00 Noon, Eastern Time, on December __, 2006.

If you  have any  questions  regarding  the  offering,  please  call us at (877)
274-2040,  Monday  through  Friday from 8:30 a.m.  to 3:00 p.m.,  or stop by our
Stock  Information  Center  located  at 1902 Long Hill Road in  Millington,  New
Jersey.

Sincerely,



Gary T. Jolliffe
President and Chief Executive Officer



THESE  SECURITIES  ARE NOT  DEPOSITS OR SAVINGS  ACCOUNTS AND ARE NOT INSURED OR
GUARANTEED BY THE FEDERAL  DEPOSIT  INSURANCE  CORPORATION,  MILLINGTON  SAVINGS
BANK, MSB FINANCIAL CORP., MSB FINANCIAL,  MHC OR ANY GOVERNMENTAL  AGENCY. THIS
IS NOT AN OFFER TO SELL OR A SOLICITATION  OF AN OFFER TO BUY COMMON STOCK.  THE
OFFER IS MADE ONLY BY THE PROSPECTUS.