Stock-based compensation. During the six months ended June 30, 2023 we incurred approximately $0.2 million of expense related to stock-based compensation. During the six months ended June 30, 2022, we incurred approximately $0.3 million of expense related to stock-based compensation. Stock based compensation varies from period to period depending on the number and timing of shares granted, the type of grant, the market value of the shares on the date of grant and other variables.
Reclamation and accretion expense. During each of the six-month periods ended June 30, 2023 and 2022 we incurred approximately $0.1 million of reclamation expense related to the accretion of an asset retirement obligation at the Velardeña Properties.
Other operating income (expense), net. We recorded $0.1 million of other operating income for the six months ended June 30, 2023. We recorded $0.9 million in the six months ended June 30, 2022 mainly related to the amortization of deferred income related to the option agreement for the sale of the Santa Maria property.
Depreciation, depletion and amortization. During each of the six-month periods ended June 30, 2023 and June 30, 2022, we incurred depreciation, depletion and amortization expense of approximately $0.2 million.
Interest and other expense, net. We recorded a nominal amount of interest and other expense, net for each of the six-month periods ended June 30, 2023 and 2022.
Gain (loss) on foreign currency. We recorded a $0.1 million foreign currency gain for each of the six months ended June 30, 2023 and June 30, 2022. Foreign currency gains and losses are primarily related to the effect of currency fluctuations on monetary transactions incurred by our foreign subsidiaries that are denominated in currencies other than US dollars.
Income taxes. We recorded tax expense of less than $1,000 for the six months ended June 30, 2023. We recorded a $44,000 tax benefit for the six months ended June 30, 2022.
Liquidity, Capital Resources and Going Concern
2023 Liquidity Forecast and Going Concern Qualification
At June 30, 2023, we had current assets of $8.6 million, including cash and cash equivalents of approximately $3.4 million. On the same date, we had accounts payable and other current liabilities of $5.4 million. (At July 31, 2023, our aggregate cash and cash equivalents totaled approximately $2.8 million.) Because we have ceased production at the Rodeo mine, our only near-term opportunity to generate cash flow from mining to support continued operations is the Velardeña mine. Without near-term financing, we will be forced to liquidate the Company’s business, potentially as soon as the third quarter of 2023.
Our forecasted expenditures during the twelve months ending June 30, 2024, excluding Rodeo and Velardeña cost of metals sold, which is included in our forecast of net operating margin discussed below, total approximately $7.6 million. These forecasted expenditures include: (i) exploration expenses of $1.4 million, (ii) El Quevar spending (net of Barrick reimbursements) of $0.3 million and (iii) administrative expense, including Mexico general and administrative costs of $5.1 million and (iv) working capital needs of $0.8 million. The actual amount of cash expenditures that we incur during the twelve-month period ending June 30, 2024 may vary significantly from the amounts specified above and will depend on a number of factors, including variations in the anticipated administrative costs, costs at El Quevar, and costs for continued exploration, project assessment, and advancement of our other exploration properties.
In order to restart production at the Velardeña mine, we require additional financing of approximately $2 to $3 million. In addition, because the Velardeña mine is not expected to generate cumulative positive net cash flow until 2024 at the earliest, we also require additional capital of approximately $1 to $3 million in order to cover the Company’s general and administrative and other expenses for the twelve months ending June 30, 2024.
We are evaluating numerous alternatives for this additional capital. We are engaged in several discussions for the sale of assets. We have also held discussions with various financing parties with regard to equity and/or debt financing as