29. Notice. Wherever this Lease requires notice to be served on the Tenant or ACEnet, notice shall be sufficient if by actual delivery or if mailed by first class mail with postage fully prepaid to the following address and persons: To ACEnet: ACEnet, Inc. 94 Columbus Road Athens, Ohio 45701 To the Tenant: Global Cooling, Inc. 6000 Poston Road Athens, Ohio 45701 30. Non-discrimination. The Tenant covenants and agrees that in its use, operation and occupancy of the Premises no persons on the grounds of race, sex, color or national origin, shall be excluded from participation in, denied the benefits or, or otherwise be subjected to discrimination in the operation of the Tenant's business and use of the Premises. In WITNESS WHEREOF, the parties hereto have executed this Lease on the date first above written: ACEnet: Tenant: Appalachian Center for Economic Networks, Inc., an Ohio Non-Profit Corporation By:-------------­ Larry G. Fisher, Executive Director Date Global Cooling, Inc. /Stirling Ultracold By: --- - - - ------­ Geraint Phillips, SVP Global Operations Date Page 8