On December 9, 2013, the Company entered into a Lease Agreement, as amended on December 23, 2013, April 15, 2014, and January 29, 2021 (the “Lease Agreement”), for its corporate headquarters, which occupies approximately 36,350 square feet of office, storage and light manufacturing space and is classified as an operating lease for financial reporting purposes. The expiration date of the base term of the Lease Agreement, in effect as of March 31, 2025 is October 31, 2026, and the terms of the Lease Agreement contain no early termination provisions. Provided there is no outstanding uncured event of default under the Lease Agreement, the Company has an option to extend the lease term for a period of five years. The Company’s option to extend the term of the Lease Agreement must be exercised in writing on or before 270 days prior to expiration of the then-current term. If the option is exercised, the monthly minimum rent for each of the extended terms will be adjusted to the then prevailing fair market rate.

The Company took possession of the leased property on May 23, 2014, once certain improvements to the leased space were completed and did not have access to the property before this date. Upon execution of the third amendment to the Lease Agreement (the “Lease Amendment”) on January 29, 2021, the Lease Amendment included a rent abatement in the amount of approximately $214,000, which is reflected in the rent payments used in the calculation of the right-of-use (“ROU”) asset and lease liability once remeasured upon the execution of the Lease Amendment to extend the lease term. The Lease Amendment also included an allowance for leasehold improvements offered by the landlord in an amount not to exceed approximately $545,000. As of the quarter ended March 31, 2025, the Company has been reimbursed approximately $545,000 by the landlord for qualified leasehold improvements in accordance with the terms of the Lease Amendment. This reimbursement by the landlord reduced the remaining ROU asset by the same amount and is being recognized prospectively over the remaining term of the lease.

The Company’s total operating lease cost for the three months ended March 31, 2025 and 2024 was approximately $205,000 and $175,000 respectively. The Company’s total operating lease cost for the nine months ended March 31, 2025 and 2024 was approximately $634,000 and $524,000, respectively.

The Company makes cash payments for amounts included in the measurement of its lease liabilities. During the three months ended March 31, 2025 and 2024 cash paid for operating leases was approximately $225,000 and $251,000, respectively. During the nine months ended March 31, 2025 and 2024, cash paid for operating leases was approximately $606,000 and $730,000, respectively.

On December 12, 2014, the Company entered into an exclusive supply agreement (the “Supply Agreement”) with Wolfspeed, Inc., formerly known as Cree, Inc. (“Wolfspeed”). Under the Supply Agreement, subject to certain terms and conditions, the Company agreed to exclusively purchase from Wolfspeed, and Wolfspeed agreed to exclusively supply, 100% of the Company’s required SiC materials in quarterly installments that were required to equal or exceed a set minimum order quantity, contingent on the Company submitting purchase orders. The initial term of the Supply Agreement was scheduled to expire on June 24, 2018.

Effective June 22, 2018, the Company and Wolfspeed amended the Supply Agreement to extend the expiration date to June 25, 2023. This amendment also (i) provided the Company with one option, subject to certain conditions, to unilaterally extend the term of the Supply Agreement for an additional two-year period following expiration of the initial term; (ii) established a process by which Wolfspeed may begin producing alternate SiC material based on the Company’s specifications that will give the Company the flexibility to use the materials in a broader variety of its products; and (iii) permitted the Company to purchase certain amounts of SiC materials from third parties under limited conditions.

Effective June 30, 2020, the Supply Agreement was further amended to extend the expiration date to June 29, 2025. This amendment also, among other things, (i) spread the Company’s total purchase commitment, contingent on the Company submitting a purchase order, under the Supply Agreement in the amount of approximately $52.95 million over the term of the Supply Agreement, as amended; (ii) established a process by which Wolfspeed agreed to accept purchase orders in excess of the agreed-upon minimum purchase commitment, subject to certain conditions; and (iii) permitted the Company to purchase revised amounts of SiC materials from third parties under limited conditions.

On July 28, 2023, Wolfspeed initiated a confidential arbitration against the Company for breach of contract claiming damages, plus interest, costs, and attorneys’ fees. On February 10, 2025, the Company and Wolfspeed entered into a settlement agreement related to the Wolfspeed arbitration. Under the settlement agreement the Company terminated the Supply Agreement and agreed to pay Wolfspeed a total of $4.77 million, which included the purchased and consigned inventory, Wolfspeed’s attorneys’ fees in connection with the arbitration, and interest. As of March 31, 2025, the Company paid $2.33 million of the final settlement to Wolfspeed. The remaining settlement amount of $2.44 million will be paid on or before December 31, 2025.