.
.
.

Exhibit 99.1

LSB CORPORATION/RIVERBANK
CODE OF PROFESSIONAL CONDUCT

TABLE OF CONTENTS

I. Statement of Purpose...................................................................................2

II. Conduct of Personal Affairs...........................................................................2

III. Conflict of Interest.................................................................................3
(a) Insider Transactions.........................................................................3
(b) Role of Personal Friendship and Family Ties in the Conduct of
Corporation/Bank Business........................................................................3
(c) Reciprocity with other Financial Institutions................................................3
(d) Borrowing from Customers or Vendors..........................................................3
(e) Personal Investments.........................................................................3

IV. Professional Conduct..................................................................................4
(a) Confidential Information.....................................................................4
(b) Disclosure to Auditors and Examiners.........................................................4
(c) The Giving and Receipt of Gifts..............................................................4
(d) Entertainment................................................................................5
(e) Disclosure of Corporate News and Information.................................................5
(f) Recommending Firms and Services to Customers.................................................5
(g) Legal, Tax or Investment Advice..............................................................5
(h) Fee for Speeches or Articles.................................................................5
(i) Major Civil or Criminal Proceedings..........................................................5
(j) Honest and Fair Treatment of Customers and Vendors...........................................6

V. Outside Activities.....................................................................................6
(a) External Employment and Affiliations that may Conflict with
Corporation/Bank Business........................................................................6
(b) Charitable Contributions.....................................................................6
(c) Involvement in Political Activities..........................................................7

VI. Bank Resources........................................................................................7
(a) Use of Corporation/Bank Resources for Personal Needs.........................................7
(b) Purchase of Assets from the Corporation/Bank.................................................7

VII. Loans to Officers or Directors.......................................................................8

VIII. Accountability......................................................................................8
(a) Violation and Internal Reporting.............................................................8
(b) Waivers......................................................................................8
(c) Investigations...............................................................................8

IX. Code Changes..........................................................................................9

LSB CORPORATION/RIVERBANK
CODE OF PROFESSIONAL CONDUCT

I. STATEMENT OF PURPOSE

LSB Corporation/RiverBank ("Company") is a public trust that is dependent on the
confidence of our customers, depositors and the community at large. The people
and institutions we serve expect that all those associated with the Company will
fulfill their professional responsibilities and conduct their personal affairs
in accordance with the highest ethical standards and with a total commitment to
the maintenance of public confidence, respect and trust.

Given the importance of this fundamental concept and in recognition of the need
to develop a common understanding of its implications, the Directors have
adopted the following code as a guide for all Company Directors, Officers and
employees ("Personnel"). The code is not a reiteration of those behavioral
prohibitions and restrictions contained in current law and regulation. Rather,
the code focuses on some of the more sensitive issues that are subject to
individual judgment, over and above one's obligation to abide by all applicable
law and regulation. It is designed to complement existing personnel policies and
current law. In addition, the code recognizes the fact that the appearance of
inappropriate conduct can be just as harmful to the Company's and an
individual's reputation as actual misconduct.

All personnel are expected to subscribe, not only to the provisions of the code,
but also to the spirit in which it is being presented. Questions concerning any
aspect of the code should be submitted to the Chief Executive Officer, the
Director of Human Resources, or, if you prefer, to your manager.

II. CONDUCT OF PERSONAL AFFAIRS

In the business of banking, personal integrity must be considered a basic
measure of the professional competence of management and the Company as a whole.
To deny or ignore this special requirement could seriously jeopardize the
Company's most important strength -- the confidence and respect of customers,
employees and the community at large.

In judging personal integrity, the banking public will not only be aware of our
professional behavior but will also rate our personal conduct. It is vital,
therefore, that all personnel conduct their professional affairs, including
financial matters, in a manner that will serve to enhance their trustworthiness
and the Company's reputation in the community.

-2-

III. CONFLICT OF INTEREST

(a) Insider Transactions

A "conflict of interest" may occur when one's private interests interfere
in any way -- or even appear to interfere -- with the interests of the
Company.

If personnel (or a member of the immediate family) have a personal or
professional financial interest, either direct or indirect, in a Bank loan,
purchase, sale, or investment decision, the individual must disclose the
interest and disqualify himself or herself from participating in the
transaction. In addition, the individual must not, either directly or
indirectly, attempt to influence those who make the decision. All such
insider transactions, regardless of amount, shall be recorded and
maintained on file by the clerk/secretary.

(b) Role of Personal Friendship and Family Ties in the Conduct of Company
Business

Personnel shall not use their positions with the Company to obtain or seek
to obtain personal favors or other advantage from other persons or
institutions for themselves, family members friends or others.

Under no circumstances will the Company be a party to a formal or informal
reciprocal arrangement with any other financial institution that results in
personal benefit or gain to personnel.

(d) Borrowing from Customers or Vendors

Personnel should avoid circumstances that might introduce a bias or
appearance of bias in dealing with the Company's customers or vendors.
Borrowing from customers or vendors is prohibited except from those firms
that normally engage in lending as a primary business function. When
borrowing from such a firm, personnel must not accept more favorable loan
terms than those terms available to the general public. In addition, any
loan must not be preconditioned on any reciprocal agreements involving the
Company. This policy prohibits implicit as well as explicit arrangements.

(e) Personal Investments

Personnel may not buy, sell, or trade any securities or commodities for
their personal investment accounts under circumstances that could result in
their becoming obligated to any dealer, broker or client that could produce
or appear to produce a conflict of interest.

-3-

IV. PROFESSIONAL CONDUCT

(a) Confidential Information

Personnel, in the course of conducting Company business, may regularly have
access to non-public information regarding the Company stockholders,
customers, and vendors. Such information is privileged and must be held in
the strictest confidence. It is to be used solely for Company purposes and
not as the basis for personal gain. Except for those disclosures permitted
by law, such as normal credit reporting procedures, properly documented
legal demands, and companies performing services on the Company's behalf,
information shall not be transmitted to persons outside the Company,
including family or associates, or even to others within the Company who do
not need to know such information in discharging their duties. The
restrictions in this paragraph shall also apply to the reports and
statements prepared for use in the Company's business and not generally
released.

It is unlawful to trade in the securities of any company on the basis of
material non-public information or to disclose such information to others.
Non-public information about the Company or any of its customers and
vendors must not be used in any way, directly or indirectly, to benefit
personnel or their family, friends and associates.

(b) Disclosure to Auditors and Examiners

Personnel are expected to cooperate fully with compliance officers,
auditors, examiners and regulatory authorities and others who are
conducting authorized examinations, investigations or other reviews of the
Company's records and business practices. Authorized requests for
information and access to Company records are to be satisfied in a timely,
responsive and respectful manner. Adverse information relevant to the
inquiry should not be concealed.

Personnel must decide conscientiously whether or not acceptance of a gift
or benefit from a stockholder, customer or vendor will give rise to a
feeling of obligation or will cause misinterpretation. As a general rule,
gifts of nominal value that constitute tokens may be accepted. Any gift of
significant value should be politely refused. A gift of money should never
be accepted regardless of the amount. This policy also pertains to the
receipt of gifts by members of the immediate family of any personnel.

No personnel may give a gift of other than nominal value if the
relationship between the donor and recipient was created through a banking
transaction.

-4-

(d) Entertainment

Personnel may engage in reasonable business-related entertainment of
nominal value, such as lunches, dinners, etc. Significant entertainment
expense for any one person or firm is to be avoided whether the expense is
attributable to infrequent, expensive affairs or frequent, nominally
inexpensive occasions. In accepting entertainment, personnel must decide
conscientiously whether or not the result will give rise to a feeling of
obligation or cause misinterpretation. Accepting significant entertainment
from any one person or firm is to be avoided.

(e) Disclosure of Corporate News and Information

Financial information about the Company is not to be released to any person
not officially authorized to have such information unless it has been made
generally available to the public in accordance with applicable
regulations. Exceptions to this policy must be approved by the Chief
Executive Officer.

All personnel should be sensitive to the problems which could result from
the premature release of confidential information.

(f) Recommending Firms and Services to Customers

Personnel should not recommend attorneys, accountants, insurance brokers or
agents, stockbrokers, real estate agents and the like to customers unless
in every case several names are given without indicating favoritism.

(g) Legal, Tax or Investment Advice

Personnel should not provide advice to customers on matters concerning the
law, taxes, the preparation of tax returns or investment decisions, except,
in the case of Directors, as may be required in the ordinary course of his
or her duties or profession.

(h) Fee for Speeches or Articles

Personnel should not accept fees for speeches made or articles written in
conjunction with official Company business. If fees are offered, they
should be given to the Company.

(i) Major Civil or Criminal Proceedings

Should personnel become involved in a major civil or criminal proceeding
that might prove embarrassing to the Company, the Chief Executive Officer
or the Director of Human Resources should be notified immediately.

-5-

(j) Honest and Fair Treatment of Customers and Vendors

Personnel should treat all customers and vendors honestly, fairly, and
objectively. Personnel should avoid any unfair or deceptive practices when
presenting the Company's products and services to customers.

V. Outside Activities

(a) External Employment and Affiliations that may Conflict with Corporation/
Bank Business

Employment with the Company must be the primary occupation and must take
precedence over any other employment or business affiliation. Personnel
must obtain prior approval for contemplated outside employment from the
Director of Human Resources or the Chief Executive Officer. Approval
normally will be given unless such outside employment is not consistent
with the best interests of the Company. In no instance should personnel
engage in any outside employment or affiliation which may reasonably
subject the Company to criticism or adverse publicity, or which will
encroach on Company working time or necessitate such long hours as to
affect his or her physical or mental effectiveness with the Company.

Any Director who serves on an outside board of directors should abstain
from Board votes on matters that affect that business.

Under no circumstances shall personnel engage in any lending or other
activity competitive with services offered by the Company.

With the exception of Directors acting in the usual and ordinary course of
their profession, it is generally not acceptable for personnel to (1)
prepare, audit, or certify for any third party statements or documents upon
which the Company might rely for lending or other purposes; (2) render
investment counsel or other advice based upon information, reports, or
analyses that are accessible primarily from or through Company employment;
or (3) render professional services for any Company vendor or customer.

When any Directors, in the usual and ordinary course of his/her profession,
does render to a third party any such service upon which the Company is
looking to rely, such Director shall abstain from any deliberation or vote
on that matter.

(b) Charitable Contributions

Charitable contributions in terms of both time and money by personnel are
encouraged. The Company will not reimburse personnel for financial

-6-

contributions, but will authorize the use of Bank time and facilities for
reasonable charitable involvement with, in the case of Officers and
employees, approval of the appropriate division senior manager or the Chief
Executive Officer.

The Company does not prefer one political party over another. Personnel may
not suggest that the Company supports or endorses any political party or
candidate. Company facilities, equipment, and supplies may not be used by
or on behalf of any political party or candidate. Federal and state laws
prohibit these kinds of corporate non-monetary contributions as well as
corporate financial contributions.

Personnel may engage in political activities provided these activities are
not conducted on Company time, and provided that they are done as
individuals and not as representatives of the Company.

The Company will not reimburse personnel for political contributions.

The Company may make political loans in connection with campaigns provided
the loans are made in accordance with applicable laws and regulations and
within the constraints of normal bank underwriting requirements.

VI. Bank Resources

(a) Use of Corporation/Bank Resources for Personal Needs

Personnel are obligated to protect the Company's assets and ensure their
efficient use. As a general rule, Company resources may not be used for
personal needs. However, personnel who donate their time and energy in
support of charitable or socially desirable projects which will reflect
credit on the Company may make reasonable use of bank resources such as
occasional administrative support, use of community rooms, etc. Under no
circumstances is Company property to be removed from the appropriate
office.

The Company has the right to examine personnel's use of Company property
including the contents of any computer, use of all communications devices
(telephones, voice mail, pagers, fax machines, e-mail, on-line services)
and any furniture, desk or filing cabinets. Personnel should have no
expectation of privacy regarding activities while on Company premises or
when using Company facilities and equipment.

(b) Purchase of Assets from the Company

Sale of assets of significant value to personnel are subject to the
Massachusetts Statute of Banks and Banking, Chapter 168, Sections 19 & 20.

-7-

VII. Loans to Officers or Directors

All loans to Officers and/or Directors and especially those to policy
making Officers, members of the Board of Directors and/or other business
entities over which they exercise any degree of control are subject to
Chapter 168, Section 19 and Chapter 172, Section 18 of the Massachusetts
Statutes, and Section 337 of the FDIC Rules and Regulations, and the
restrictions contained in subpart A of Federal Reserve Bank Regulation O.

All loans to Officers and Directors are to be made in accordance with the
appropriate provisions of the Bank's Credit Policy Manual.

VII. Accountability

(a) Violation and Internal Reporting

Violations of this code, including failure to report possible violations by
others, is a serious matter that may result in disciplinary action, up to
and including termination of employment. If personnel believes that a
violation of this code has occurred, he or she should notify promptly the
Chief Executive Officer, any Executive Vice President, the Director of
Human Resources or a member of the Audit Committee of the Company's Board.
The notification will be handled in a sensitive and appropriate manner. No
personnel will be subject to retaliation for raising, in good faith,
legitimate concerns or questions about possible violations of this code.
Anonymous reports are welcome. Knowingly false reports will be subject to
disciplinary action.

(b) Waivers

Any waiver of this code for Directors or executive officers may be made
only by the Board of Directors of the Corporation and must be promptly
disclosed to the Corporation's stockholders, along with the reasons for the
waiver. The Board of Directors will consider requests for waivers on a case
by case basis and reserves the right to grant or deny such a request in its
sole discretion.

Appropriate departmental personnel will investigate allegations of
violations of the code or other wrongdoing. Depending on the circumstances,
alleged violations will be reported to the Board of Directors (or, as
appropriate, to the Audit Committee) or to applicable authorities.
Personnel are expected to cooperate fully with both internal and external
investigations. Unless specifically authorized by the Chief Executive
Officer or the Audit Committee, personnel must maintain the confidentiality
of any investigation and all related

-8-

documentation. The Company may determine, in its sole discretion, the
nature, manner and extent of any disciplinary action.

IX. Code Changes

The Company may modify this code in any manner in its sole discretion and
without notice.

Approved by Board of Directors November 16, 2006

-9-