Moleculin Biotech, Inc.

Our corporate executive offices, laboratory and other spaces are located in leased facilities in Houston, Texas. In March 2018, we entered into a Lease Agreement (the “Lease”) which we use for corporate office space and headquarters. The term of the Lease began in August 2018 and had an initial term of 66 months, which had a renewal option for an additional 5 years. In September 2023, the Company executed an amendment to extend the corporate office lease until August 31, 2029, with an option to renew. The Company is required to remit base monthly rent of approximately $4,700 which will increase at an average approximate rate of 2% each year. The Company is also required to pay additional rent in the form of its pro-rata share of certain specified operating expenses of the building.

In June 2022, we entered into a Second Amendment to our Lab Lease Agreement. The term of the Lease will continue through September 30, 2027, with no further right or option to renew. We are required to remit base monthly rent which will increase at an average approximate rate of 3% each year. In August 2019, we entered into a sublease (which was extended in 2022 in connection with the lease extension) with Houston Pharmaceuticals, Inc. (HPI), which is affiliated with Dr. Priebe. We granted HPI access to all of the Lab Lease space and HPI has agreed to pay us 50% of the rent payable under the Lab Lease less 50% of any benefits from any sublease or other lab service agreement we may receive from the Lab Lease. Although HPI has access to the space, it is the intent of the parties that they equally share the Lab Lease space for research purposes. We believe our facilities, as expanded, will be sufficient to meet our current needs and that suitable space will be available as and when needed. We do not own any real property.