11. Leases

The Company has entered into multiple operating leases from which it conducts its business.

SINTX

With respect to SINTX operations, the Company leases 30,764 square feet of office, warehouse and manufacturing space under a single operating lease. This lease expires in October 2031. The lease has one five-year extension option.

SINTX Armor

On August 19, 2021, the Company, on behalf of SINTX Armor, entered into an Industrial Lease Agreement (the “SINTX Armor Lease”) pursuant to which the Company has agreed to lease approximately 10,936 square feet of office and manufacturing space from which SINTX Armor will conduct its operations. The term of the SINTX Armor Lease is 122 months through October 2031. Impairment of operating lease right-of-use assets of $0.7 million was recorded during 2024 related to Armor exit costs, and is included in Armor exit costs in the statement of operations.

TA&T

In connection with the disposition of TA&T, the lease facilities, including right of use assets and lease liabilities, were transferred to Tethon (see Note 2).

Leases with an initial term of 12 months or less are not recorded on the balance sheet. Lease expense is recognized on a straight-line basis over the term of the lease. The Company accounts for lease components separately from the non-lease components. The depreciable life of the assets and leasehold improvements are limited by the expected lease term.

As of March 31, 2025, the operating lease right-of-use assets totaled approximately $2.7 million, and the operating lease liability totaled approximately $3.5 million. Non-cash operating lease expense during the three months ended March 31, 2025 and 2024, totaled approximately $0.1 and $0.2 million, respectively. As of March 31, 2025, the weighted-average discount rate for the Company’s operating lease was 8.8%.

Operating lease future minimum payments together with the present values as of March 31, 2025, are summarized as follows:

Schedule of Operating Lease Future Minimum Payments