**Exhibit 10.1.8**

**SIXTHAMENDMENT TO OFFICE LEASE AGREEMENT**

**THIS SIXTH AMENDMENT TO OFFICE LEASE AGREEMENT**(“Amendment”)is made and entered into as of the 31 day of March, 2006 (the “EffectiveDate”), by and between **AP-SOUTHEAST REALTY LP**,a Delaware limited partnership, successor by name change to Crocker RealtyTrust, L.P., which, in turn, is successor-in-interest to Connecticut GeneralLife Insurance Company, (“Landlord”), and **IMMUCOR,INC**., a Georgia corporation (“Tenant”).

**W I T N ES S E T H:**

**WHEREAS,**Tenant and Landlordentered into that certain Office Lease Agreement, dated as of February 2, 1996,as amended by that certain First Amendment to Lease Agreement dated as of March8, 1998, as amended by that certain Second Amendment to Lease Agreement datedas of August 18, 1998, as amended by that certain Third Amendment to LeaseAgreement dated as of August 19, 1999, as amended by that certain FourthAmendment to Lease Agreement dated as of August 8, 2002, and as further amendedby that certain Amended and Restated Fifth Amendment to Lease Agreement datedas of January 18, 2005 (the “Fifth Amendment”) (as so amended, the “Lease”),with respect to therein described space (the “Original Premises”) located asmore particularly described in the Lease in the buildings known as 2975 GatewayDrive, Norcross, Georgia, 3130 Gateway Drive, Norcross, Georgia, 3150 GatewayDrive, Norcross, Georgia, and 7000 Peachtree Industrial Boulevard, Norcross,Georgia (each individually and/or collectively, the “Building”) located in thatcertain office park known as Colony Center Business Park (the “Building Project”);and

**WHEREAS**, Landlord and Tenantdesire to amend the Lease pursuant to the terms and conditions hereinafter setforth in this Amendment.

**NOW, THEREFORE**, in considerationof the foregoing and the mutual premises and covenants contained herein and inthe Lease, and for other good and valuable consideration, the receipt andsufficiency of which is hereby acknowledged, Landlord and Tenant hereby agreeas follows:

1.             **Expansion.**

As of theEffective Date, the Original Premises consist of **108,637** rentable square feet. Effective on **April 1, 2006**(the “Expansion Effective Date”), the Original Premises shall be increased forall purposes under the Lease (other than the construction, work letter andimprovement allowance provisions thereof) by an agreed **2,606** rentable square feet known as Suite100 of the Building known as 7000 Peachtree Industrial as more particularlyshown cross-hatched on Exhibit A attached hereto and made a part hereof(the “Expansion Space”).  Following theaddition of the Expansion Space and thereafter during the Expansion Term (ashereinafter defined), the total space leased from Landlord to Tenant, and byTenant from Landlord, pursuant to the terms of the Lease as amended hereby (andtherefore, the “Premises” under the Lease) shall equal an agreed **111,243** rentable square feet.  The number of rentable square feet in theExpansion Space includes an add-on factor for common areas in the Building andhas been agreed upon by the parties as final and correct and not subject tochallenge or dispute by either party.

2.             **Expansion Term.**  Thedemised term with respect to the Expansion Space (“Expansion Term”) shallcommence on the Expansion Effective Date and shall continue through June 30,2016, coterminous with the expiration of the demised term for the OriginalPremises.

3.             **Base Rent.**

a.             Except as set forth herein,commencing on the Expansion Effective Date, all obligations for Common AreaCosts, Real Estate Taxes, Landlord’s Insurance Costs and all other chargesapplicable to the Original Premises during the Lease Term shall be applicableto the Expansion Space during the Expansion Term calculated at the same rates,amounts and timing of increases.

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b.             Notwithstanding the foregoing tothe contrary, Base Rent for the Expansion Space shall be calculated inaccordance with the following:

| Time Period      | ** ** | **Base Rent PSF per Annum** | ** ** | **Monthly Base Rent** |
|------------------|------------|-----------------------------|------------|-----------------------|
| 4/1/06-11/30/06  |       | $7.73                       |       | $1,678.70             |
| 12/1/06-11/30/07 |       | $6.28                       |       | $1,363.81             |
| 12/1/07-11/30/08 |       | $6.52                       |       | $1,415.93             |
| 12/1/08-11/30/09 |       | $6.76                       |       | $1,468.05             |
| 12/1/09-11/30/10 |       | $7.01                       |       | $1,522.34             |
| 12/1/10-11/30/11 |       | $7.28                       |       | $1,580.97             |
| 12/1/11-11/30/12 |       | $9.22                       |       | $2,002.28             |
| 12/1/12-11/30/13 |       | $9.50                       |       | $2,063.08             |
| 12/1/13-11/30/14 |       | $9.79                       |       | $2,126.06             |
| 12/1/14-11/30/15 |       | $10.08                      |       | $2,189.04             |
| 12/1/15-6/30/16  |       | $10.38                      |       | $2,254.19             |

 

Notwithstandingthe foregoing to the contrary, Base Rent for the Expansion Space only shall beconditionally abated from April 1, 2006 until August 31, 2006.  Commencing upon September 1, 2006, Tenantshall make Base Rent payments for the Expansion Space as otherwise providedabove.  Notwithstanding such abatement ofBase Rent (a) all other sums due under the Lease, including Base Rent forthe Original Premises and Additional Rent and Operating Costs for the entirePremises shall be payable as provided in the Lease, and (b) any increases inBase Rent set forth in the Lease shall occur on the dates scheduled therefore.  The abatement of Base Rent provided for inthis provision is conditioned upon Tenant’s full and timely performance of allof its obligations under the Lease.  Ifat any time during the Expansion Term an Event of Default by Tenant occurs,then the abatement of Base Rent provided for in this provision shall immediatelybecome void, and Tenant shall promptly pay to Landlord, in addition to allother amounts due to Landlord under the Lease, the full amount of all Base Rentherein abated.

c.             The Base Year with respect to theExpansion Space only shall be deemed to be calendar year 2006.

d.             Tenant’s Share with respect to theExpansion Space shall be 1.19%.

4.             **Condition of Expansion Space.**  Except as set expressly set forth in the WorkLetter attached hereto as Exhibit B and by this reference made a part hereof,(a) the Expansion Space shall be delivered to Tenant by Landlord “AS IS, WHEREIS AND WITH ALL FAULTS” and (b) Landlord is not obligated to perform any tenantimprovements therein or to provide any tenant improvement allowances withrespect thereto.

5.             **Right of Offer. **The Right of Offer set forth in the FifthAmendment is hereby revised so that the Offer Space shall be defined as “anyspace within the buildings located at 2975 Gateway Drive, Norcross, Georgia,2990 Gateway Drive, and 7000 Peachtree Industrial Boulevard, Norcross, Georgia”only.  

6.             **Acknowledgement.** Tenant hereby acknowledges that, to Tenant’s current knowledge (withoutinquiry)  Landlord is not in default ofits obligations arising pursuant to the Lease as of the date of this Amendmentand that, except as set forth on Exhibit B attached hereto, Landlord has fullyperformed any tenant improvement, buildout or construction allowanceobligations set forth in the Lease.

7.             **Brokers.**  Tenantwarrants and represents to Landlord that except for Newmark Southern Region, nobroker, finder, real estate agent or other person is entitled to a commission,fee or other compensation in connection with or as a result of this Amendmentor the transactions contemplated hereby or hereunder.  The commission of the broker identified aboveshall be paid by Landlord pursuant to a separate agreement.  Tenant hereby indemnifies and holds harmlessLandlord from any and all claims, losses, costs and damages (includingreasonable attorneys’ fees) arising in connection with any claims againstLandlord for broker commissions, fees, or other compensation; the foregoingindemnity shall not include the fees of the broker(s) identified above.

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8.             **Authority.**  Landlordand Tenant affirm and covenant that each has the authority to enter into thisAmendment, to abide by the terms hereof, and that the signatories hereto areauthorized representatives of their respective entities empowered by theirrespective entities to execute this Amendment. Upon Landlord’s request, Tenant shall provide evidence of the foregoingto Landlord.

9.             **Miscellaneous.**  Tothe extent the provisions of this Amendment are inconsistent with the Lease,the terms of this Amendment shall control. Except as expressly amended or modified herein, all other terms, covenantsand conditions of the Lease shall remain in full force and effect and thisAmendment shall be binding upon the parties hereto and their respectivesuccessors and assigns.  This Amendmentshall be governed by the laws of the State in which the Building islocated.  Any terms used in thisAmendment as defined terms, but which are not defined herein, shall have themeanings attributed to those terms in the Lease.  The submission of this Amendment to Tenantfor examination or consideration does not constitute an offer to amend theLease, and this Amendment shall become effective only upon the execution anddelivery thereof by both Landlord and Tenant. The Lease, as amended hereby, contains the entire agreement between theparties with respect to the space demised by the Lease, as amended, and norepresentations, inducements, promises, agreements, oral or otherwise, betweenthe parties not embodied in the Lease, as amended hereby, shall be of any forceand effect.  Time is of the essence as toall of the obligations of Tenant under the Lease and this Amendment.  This Amendment has been negotiated “at arm’slength” by Landlord and Tenant, each having the opportunity to be representedby legal counsel.  Therefore, thisAmendment shall not be more strictly construed against either party by reasonof the fact that one party may have drafted this Amendment.  This Amendment may be executed by the partiessigning different counterparts of this Amendment, which counterparts togethershall constitute the agreement of the parties.

INWITNESS WHEREOF, the parties herein have hereunto set their hands and seals,the day and year first above written.
|            | **LANDLORD:**                                               |
|------------|-------------------------------------------------------------|
| ** ** | ** **                                                  |
| ** ** | **AP-SOUTHEAST REALTY, LP,**A Delaware limited  partnership |
| ** ** | ** **                                                  | ** ** |
| ** ** | By:   AP-SOUTHEAST GP                             |

 
|            | By:                                      | /s/ WILLIAM F. FUSEMAN III |   |
|------------|------------------------------------------|----------------------------|--------|
| ** ** | Print Name:                              | William F. Fuseman III     |   |
| ** ** | Title:                                   | Senior Vice President      |   |
| ** ** |                                     | ** **                 |   |
| ** ** | **TENANT:**                              |                       |
| ** ** | ** **                               | ** **                 |   |
| ** ** | **IMMUCOR, INC.,**a Georgia  corporation |                       |
| ** ** | ** **                               | ** **                 |
|       | By:                                      | /s/ RALPH A. EATZ          |
|       | Print Name:                              | Ralph A. Eatz              |
|       | Title:                                   | Senior Vice President      |
|            |                                          |                            |        |  |  |

 

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**Exhibit A**

**[ATTACH FLOOR PLAN FOR EXPANSION SPACE]**

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**ExhibitB**

**TENANTIMPROVEMENTS**

**[TenantBuilds]**

Landlordhas made no representation or promise as to the condition of the ExpansionSpace.  Landlord shall not perform anyalterations, additions, or improvements in order to make the Expansion Spacesuitable and ready for occupancy and use by Tenant.  Tenant has inspected the Expansion Space, isfully familiar with the physical condition of the Expansion Space, and shallaccept the Expansion Space “as is,” “where is,” without any warranty, expressor implied, or representation as to fitness or suitability.

Tenantshall perform all work necessary or desirable for Tenant’s occupancy of theExpansion Space (the “**Tenant Improvements**”).  Tenant shall furnish to Landlord, forLandlord’s written approval, a permit set (final construction drawings) ofplans and specifications for the Tenant Improvements (the “**Plans**”).  The Plans shall include the following:  fully dimensioned architectural plan; electric/telephoneoutlet diagram; reflective ceiling plan with light switches; mechanical plan;furniture plan; electric power circuitry diagram; plumbing plans; all color andfinish selections; all special equipment and fixture specifications; and firesprinkler design drawings.

1.             The Plans will be prepared by theapproved Building architect, except for and the electrical and mechanicalplans, which shall be prepared by the approved Building professionalengineer,.  Both the architect and the engineerwill be employed by Tenant pursuant to written contracts between Tenant andeach of them.  The Plans shall beproduced on CAD.  Tenant shall beobligated to cause the Plans to comply with all applicable laws, ordinances,directives, rules, regulations, and other requirements imposed by any and allgovernmental authorities having or asserting jurisdiction over the ExpansionSpace.  Landlord shall review the Plansand either approve or disapprove them within a reasonable period of time.  Landlord further agrees not to unreasonably withhold,condition or delay its approval as to any Plans presented by Tenant for theExpansion Space which provide for the installation of substantially similarimprovements as were installed by Tenant and approved by Landlord for the OriginalPremises. Should Landlord disapprove them, Tenant shall make any necessarymodifications and resubmit the Plans to Landlord for approval or disapprovalfollowing receipt of Landlord’s disapproval of them.  The approval by Landlord of the Plans and anyapproval by Landlord of any similar plans and specifications for any otherAlterations or the supervision by Landlord of any work performed on behalf ofTenant shall not:  (a) imply Landlord’sapproval of the quality of design or fitness of any material or device used;(b) imply that the Plans; are in compliance with any codes or otherrequirements of governmental authority; (c) impose any liability on Landlord toTenant or any third party; or (d) serve as a waiver or forfeiture of any rightof Landlord.  The Tenant Improvementsshall be constructed by a general contractor selected and paid by Tenant andapproved by Landlord.  A copy of thecontractor’s license(s) to do business in the jurisdiction(s) in which theExpansion Space are located, the fully executed contract between Tenant and thegeneral contractor, the general contractor’s work schedule, and all building orother governmental permits required for the Tenant Improvements shall bedelivered to Landlord before commencement of the Tenant Improvements.  Tenant shall cooperate as reasonablynecessary so that its general contractor will cause the Tenant Improvements tobe completed promptly and with due diligence. The Tenant Improvements shall be performed in accordance with the Plansand shall be done in a good and workmanlike manner using new materials.  All work shall be done in compliance with allother applicable provisions of this Lease and with all applicable laws,ordinances, directives, rules, regulations, and other requirements of any governmentalauthorities having or asserting jurisdiction over the Expansion Space.  Before the commencement of any work byTenant, Tenant shall furnish to Landlord certificates evidencing the existenceof builder’s risk, commercial general liability, and workers’ compensationinsurance complying with the requirements of this Lease.  Any damage to any part of the BuildingProject that occurs as a result of the Tenant Improvements shall be promptlyrepaired by Tenant.  Tenant shall pay toLandlord 3% of the total actual costs of the Tenant Improvements, includingextra work or change orders, representing Landlord’s fee for overhead andsupervision.

Tenantshall also ensure compliance with the following requirements concerningconstruction:

1.             Tenant and all constructionpersonnel shall abide by Landlord’s job site rules and regulations and fullycooperate with Landlord’s construction representatives in coordinating allconstruction activities in the Building Project, including rules andregulations concerning working hours, parking, use of the construction elevatorand restrictions on the hours during which noisy or disruptive work may beperformed.

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2.             Tenant shall be obligated to obtain and deliver toLandlord all forms of approval provided by the appropriate local governmentalauthorities to certify that the Tenant Improvements have been completed and theExpansion Space are ready for occupancy, including a final, unconditionalcertificate of occupancy.  Tenant shallalso be obligated to obtain and deliver to Landlord a certificate ofsubstantial completion executed by the architect who prepared the Plans.

3.             At all times during construction, Tenant shall allowLandlord access to the Expansion Space for inspection purposes.  On completion of the Tenant Improvements,Tenant’s general contractor shall review the Expansion Space with Landlord andTenant and secure Landlord’s and Tenant’s acceptance of the TenantImprovements.

If,but only as long as Tenant is not in default under this Lease beyond anyapplicable grace period, Tenant shall be entitled to a fixed price tenantimprovement allowance in the amount of $34,581.62.  The tenant improvement allowance shall bepaid to Tenant in reimbursement for the total out of pocket costs paid byTenant for the design professional fees and the “hard costs” of construction ofthe Tenant Improvements.  The allowancemay not be applied to any other costs such as, but not limited to, the costs ofTenant’s furniture, trade fixtures, and equipment, cabling and wiring costs,and moving expenses.  If the total amountpaid by Tenant for the Tenant Improvements is less than the tenant improvementallowance, Tenant shall not receive cash or any credit against Rent for theunused portion of the allowance.  Thetenant improvement allowance shall be paid within twenty-one days after all ofthe following events have occurred:  (a)the Tenant Improvements have been Substantially Completed; (b) Tenant hasdelivered to Landlord final releases of lien from Tenant’s general contractorand all subcontractors and material suppliers and a final contractor’saffidavit from the general contractor in accordance with the laws of the Statewhere the Expansion Space are located, and in a form and substance reasonablyacceptable to Landlord; (c) Tenant has moved into the Expansion Space andopened for business in the Expansion Space; and (d) Tenant has paid the Rentdue for the first month of the Expansion Term. Tenant shall provide Landlord with true copies of bills paid by Tenantfor the Tenant Improvements, and Landlord shall reimburse Tenant for the amountset forth in the bills up to the amount of the allowance.  At Landlord’s option, the tenant improvementallowance or any portion of it may be paid by Landlord directly to the generalcontractor, subcontractor or material supplier performing the TenantImprovements who notifies Landlord that it has not been paid.  If Tenant is in default under this Leasebeyond any applicable grace period, Landlord may, in addition to all its otheravailable rights and remedies, withhold payment of any unpaid portion of thetenant improvement allowance.  The tenantimprovement allowance shall be available to Tenant only for Tenant Improvementsperformed by or on behalf of Tenant and completed on or before the date whichis one hundred eighty (180) days after the date of this Lease.  If Tenant has not requested payment of all ofthe tenant improvement allowance on or before that date, Tenant shall have nofurther rights whatsoever to use any portion of the undisbursed tenant improvementallowance.  If Tenant makes anappropriate request, prior to the expiration of such one hundred eighty (180)day period, for disbursement of the tenant improvement allowance and hassatisfied the requirements of items (a) — (d) above, Landlord will be obligatedto make the disbursement of the requested portion of the tenant improvementallowance even though Landlord’s twenty-one (21) day period to make thedisbursement occurs more than one hundred eighty days after the date of thisLease.

Thetenant improvement allowance provisions of this exhibit shall not apply to anyadditional space added to the Premises at any time after the Date of thisAmendment, whether by any options under the Lease or otherwise, or to anyportion of the Premises or any additions to the Premises in the event of arenewal or extension of the Expansion Term, whether under any options under theLease or otherwise, unless expressly so provided in the Lease or an amendmentto this Lease.

The **“Expansion Effective Date”** shall mean April1, 2006.

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