Document:

Exhibit 4.(B)2

RAPPAPORT,   ASERKOFF & GELLES AN ASSOCIATION INCLUDING A PROFESSIONAL CORPORATION 15   STATE STREET.SUITE 1410 BOSTON. MA 021<19·1827 JEROME LYLE RAPPAPORT, P.C.   JANET F. ASERKOFF EDWARD GELLES TELEPHONE 617-227·7345 FACSIMILE 617·227-1727   DANIEL B. RA KOV (1932·1982) September 30, 2015 Phenogen Sciences, Inc. Attn:   Brian Manuel, Chief Financial Officer 9115 Harris Corners Parkway, Suite 320   Charlotte, North Carolina 28269 Re: Fourth Amendment to Lease Agreement New   Boston Harris Corners LLC ("Landlord") Phenogen Sciences, Inc.   ("Tenant") 9115 Harris Corners Parkway, Charlotte, North Carolina   (the "Building") Dear Mr. Manuel: Enclosed is one (1) fully   executed original of the above-referenced document for your files. Very truly   yours, 13::( Karen B. Furman, ACP Advanced Certified Paralegal Enclosure cc:   Jon Gillman, New Boston Fund, Inc. (via e-maiij Paul Stuart, New Boston   Management Services, Inc. (via e-maiij 

    

 

\ [ ORIGINAL   FOURTH AMENDMENT TO LEASE AGREEMENT This Fourth Amendment to Lease Agreement   (this "Amendment") made as of this J day of September, 2015 between   NEW BOSTON HARRIS CORNERS LLC, a Delaware limited liability company with a   principal place of business at 75 State Street, Suite 1410, Boston, Massachusetts   02109 ("Landlord") and PHENOGEN SCIENCES, INC., a Delaware   corporation with a principal place of business at 9115 Harris Comers Parkway,   Charlotte, North Carolina 28269 ("Tenant"). WHEREAS, Landlord is   the owner of the building known as 9115 Harris Corners Parkway (a/k/a Two   Harris Comers), Charlotte, North Carolina (the "Building");   WHEREAS, pursuant to a Lease Agreement dated as of August 17, 2010 by and   between Landlord's predecessor in interest, HC 9115 LLC, and Tenant, as   amended by a First Amendment to Lease Agreement dated August 17, 2012, as   further amended by a Second Amendment to Lease Agreement dated as of October   11, 2013, and as further amended by a Third Amendment to Lease Agreement   dated as of October 24, 2014 by and between Landlord and Tenant (as so   amended, the "Lease") Tenant leases approximately 1,610 square feet   of net rentable area on the third floor of the Building (the   "Premises"); and WHEREAS, Landlord and Tenant desire to extend the   term of the Lease and to modify certain other provisions thereof; NOW,   THEREFORE, in consideration of the Lease, the mutual covenants therein and   hereinafter set forth and for other good and valuable consideration, the   receipt and sufficiency of which are hereby acknowledged, Landlord and Tenant   agree as follows: 1. Terms. All capitalized terms used herein and not defined   herein shall have the meanings ascribed to such terms in the Lease. 2. Lease   Term. Notwithstanding anything to the contrary contained in the Lease, the   Lease Term shall be extended for an additional period of twelve (12) months   commencing on November 1, 2015 and expiring on October 31, 2016 (the   "Third Extended Term"). 3. Monthlv Base Rent. Tenant shall pay   Monthly Base Rent during the Third Extended Term as set forth below: Lease   Period November 1, 2015 - October 31, 2016 4. Other Agreements. (a) Security   Deposit. Landlord shall continue to hold the security deposit in -1-g:\   leases\ Harns Corners\ Phenogen \ phenogen 4th am nd vOl 

    

 

the amount of   $2,595.00 delivered by Tenant pursuant to the Lease, as security for the   payment of Tenant's obligations under the Lease. (b) Brokerage. Each of   Landlord and Tenant represents and warrants to the other that it has dealt   with no broker, other than Trinity Partners, in connection with this   Amendment, and agrees to indemnify, defend and hold harmless from and against   any loss, cost, claims, and expenses, including attorneys' fees, arising from   a breach of this representation. 5. (a) General Provisions. Liability. The   obligations contained herein on the part of Landlord are solely those of New   Boston Harris Comers LLC and no trustee, agent, employee, member,   beneficiary, partner, general or limited, shall have any liability on account   thereof. (b)Effect of Amendment. Except as modified herein, all terms and   conditions of the Lease remain in full force and effect and are hereby   ratified and confirmed. In the event the terms and conditions of this   Amendment conflict with the terms of the Lease, the terms and conditions of   this Amendment shall prevail and be controlling. From and after the   effectiveness of this Amendment, the term "this Lease" when used in   the Lease shall mean the Lease as modified by this Amendment. (c) Counterpart   Execution. This Amendment may be executed simultaneously in two or more   counterparts, each of which shall be deemed an original but all of which   shall constitute one and the same instrument. (d) Governing Law. This   Amendment shall be governed by and construed in accordance with the laws of   the State of North Carolina. (THE REMAINDER OF THIS PAGE HAS INTENTIONALLY   BEEN LEFT BLANK. SIGNATURES ARE CONTAINED ON THE FOLLOWING PAGE.J -2-g:\   leases\ Harris Corners\Phenogen \phenogen 4th amnd vOl 

    

 

IN WITNESS   WHEREOF, the parties hereto have caused this Amendment to be executed by   above written. their duly authorized representatives as of the day and year   first LANDLORD: NEW BOSTON HARRIS CORNERS LLC By: New Boston Fund, Inc., Its   Manager TENANT: PHENOGEN SCIENCES, INC. By: ...p-;;....· -­ M J.JU6L N Title:   C:.. b -3-g:\leases\Harris Corners\Phenogen \phenogen 4th amnd vOlExhibit 10.6

 

NORTHERN TECHNOLOGIES
INTERNATIONAL CORPORATION

 

MATERIAL TERMS OF ANNUAL
BONUS PLAN

 

The material terms of the Northern Technologies International Corporation annual bonus
plan for executive officers and certain other employees are set forth in resolutions approved by the Compensation Committee and
are not otherwise set forth in any written formal plan or individual agreements between NTIC and plan participants.

 

For each fiscal year, the total amount available under the bonus plan for all plan participants,
including executive officers, is dependent upon the Company’s earnings before interest, taxes and other income, as adjusted
to take into account amounts to be paid under the bonus plan and certain other adjustments (Adjusted EBITOI). Each plan participant’s
percentage of the overall bonus pool is based upon the number of plan participants, the individual’s annual base salary and
the individual’s position and level of responsibility within the company. In the case of each of the Company’s executive
officer participants, 75% of the amount of their individual bonus payout is determined based upon the Company’s actual EBITOI
for the fiscal year compared to a pre-established target EBITOI for the fiscal year and 25% of the payout is determined based upon
such executive officer’s achievement of certain pre-established individual performance objectives. The payment of bonuses
under the plan is discretionary and bonuses may be paid to executive officer participants in both cash and shares of NTIC common
stock, the exact amount and percentages of which are determined by the Company’s Board of Directors, upon recommendation
of the Compensation Committee, after the completion of the Company’s consolidated financial statements for the fiscal year.Exhibit 10.9

 

NORTHERN TECHNOLOGIES
INTERNATIONAL CORPORATION

 

DESCRIPTION OF NON-EMPLOYEE
DIRECTOR

COMPENSATION ARRANGEMENTS

 

Overview

 

NTIC’s non-employee directors currently consist of Barbara D. Colwell, Soo Keong
Koh, Ph.D., Sunggyu Lee, Ph.D., Ramani Narayan, Ph.D., Richard J. Nigon and Konstantin von Falkenhausen. NTIC uses a combination
of cash and long-term equity-based incentive compensation in the form of annual stock option grants to attract and retain qualified
candidates to serve on the Board of Directors.

 

Annual Retainers; Meeting Fees

 

Each non-employee director receives an annual retainer of $15,000 for services rendered
as a director of NTIC. The annual retainer is paid quarterly. NTIC’s Chairman of the Board receives an additional annual
retainer of $15,000, the Chair of the Audit Committee receives an additional annual retainer of $5,000 and other members of the
Audit Committee received an additional annual retainer of $4,000. Each non-employee director also receives $1,000 for each Board
and strategy review meeting attended and $1,000 for each Audit Committee, Compensation Committee and Nominating and Corporate Governance
Committee meeting attended. No director, however, will earn more than $1,000 per day in Board, Board committee and strategy review
meeting fees. Any director that is an employee of NTIC (G. Patrick Lynch) does not receive any retainer or Board or Committee meeting
fees.

 

Stock Options

 

Each non-employee director is automatically granted a ten-year non-qualified option to
purchase 4,000 shares of NTIC common stock in consideration for their services as directors of NTIC and the Chairman of the Board
is automatically granted an additional ten-year non-qualified option to purchase 2,000 shares of NTIC common stock in consideration
for his services as Chairman on the first day of each fiscal year. Each non-employee directors who is elected or appointed to the
Board following the first day of the fiscal year receives an automatic grant of an option to purchase a pro rata portion of 4,000
shares of NTIC common stock calculated by dividing the number of months remaining in the fiscal year at the time of election or
appointment divided by 12, which options are automatically granted at the time of the new director’s election or appointment.
Each automatically granted option becomes exercisable, in full on the one-year anniversary of the date of its grant. The exercise
price of such option is equal to the fair market value of a share of NTIC common stock on the date of grant. All such options are
granted under the Northern Technologies International Corporation Amended and Restated 2007 Stock Incentive Plan.

 

Reimbursement of Expenses

 

All directors of NTIC are reimbursed for travel expenses for attending meetings and other
miscellaneous out-of-pocket expenses incurred in performing their Board functions.

 

    	 

     

    

Indemnification Agreements

 

NTIC has entered into agreements with all of its directors under which NTIC is required
to indemnify them against expenses, judgments, penalties, fines, settlements and other amounts actually and reasonably incurred,
including expenses of a derivative action, in connection with an actual or threatened proceeding if any of them may be made a party
because he or she is or was a director of NTIC. NTIC will be obligated to pay these amounts only if the director acted in good
faith and in a manner that he or she reasonably believed to be in or not opposed to NTIC’s best interests. With respect to
any criminal proceeding, NTIC will be obligated to pay these amounts only if the director had no reasonable cause to believe his
or her conduct was unlawful. The indemnification agreements also set forth procedures that will apply in the event of a claim for
indemnification.

 

Consulting Arrangements

 

NTIC paid consulting fees to Bioplastic Polymers LLC, an entity which is owned by Ramani
Narayan, Ph.D., in the aggregate amount of $100,000 and royalty fees in an aggregate amount of $21,327 during the fiscal year ended
August 31, 2015. The consulting services rendered by Bioplastic Polymers LLC related to research and development associated with
various new technologies.  The royalty fees were paid pursuant to an oral agreement pursuant to which NTIC has agreed to pay
Bioplastic Polymers LLC and Dr. Narayan in consideration of the transfer and assignment by Biopolymer Plastics LLC and Dr. Narayan
of certain biodegradable polymer technology to NTIC, an aggregate of three percent of the gross margin on any net sales of products
incorporating the biodegradable polymer technology transferred to NTIC by Bioplastic Polymers LLC and Dr. Narayan for a period
of 10 years, provided that if a patent for or with respect to biodegradable polymer technology is issued before the expiration
of such ten-year period, then NTIC will until the expiration of such patent pay to Bioplastic Polymers LLC and Dr. Narayan an aggregate
three percent of the biodegradable polymer technology gross margin attributable to such patent.

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