same time, and to some extent relatedly, the global silicon semiconductor industry is experiencing a shortage in supply and difficulties in ability to meet customer demand. In particular, the recent government-mandated COVID-19 containment measures in China have impacted supply shipments and created ongoing risk and uncertainty. These issues have led to an increase in lead-times of the production of semiconductor chips and components.
We have experienced, and expect to continue to experience, disruption to parts of our semiconductor supply chain, including procuring necessary components and inputs, such as wafers and substrates, in a timely fashion, with suppliers increasing lead times or placing products on allocation and raising prices. We have also incurred higher costs to secure available inventory, or have extended our purchase commitments or placed non-cancellable orders with suppliers, which introduces inventory risk if our forecasts and assumptions are inaccurate. In addition, disruptions to commercial transportation infrastructure have increased delivery times for materials and components to our facilities and, in some cases, our ability to timely ship our products to customers.
We believe the global supply chain challenges and their adverse impact on our business will persist and the degree to which the pandemic ultimately impacts our business and results of operations will depend on future developments beyond our control.
We identified a material weakness in connection with our internal financial reporting controls. Although we are taking steps to remediate this material weakness, there is no assurance we will be successful in doing so in a timely manner, or at all, and we may identify other material weaknesses.
In August 2022, the Company determined that it made an error in the presentation and accounting of its consolidated statement of cash flows in the Company’s annual and interim consolidated financial statements during 2021 and 2022. The effect of this error was to overstate net cash used in operating activities for each reported period. The error had no effect on the Company’s cash flow from investing activities, financing activities, net change in cash or cash and cash equivalents as of the reporting date and had no impact on the Company’s consolidated balance sheet, statements of operations and comprehensive loss and the statements of equity.
As a result, we determined that there was a material error in the cash flow statement that required a restatement of the financial statements for the fiscal year ended December 31, 2021 and to our Form 10-Qs for the periods ended September 30, 2021 and March 31, 2022 (including comparative information for March 31, 2021) to restate the previously issued financial statements, with comparatives for June 30, 2021 restated in the Form 10-Q for the period ended June 30, 2022. This was due to inadequate design and implementation of controls to evaluate and monitor the presentation and compliance with accounting principles generally accepted in the United States of America related to the cash flow statement. Accordingly, management has determined that this control deficiency constitutes a material weakness and, as a result, management has concluded that, as of September 30, 2022, our internal control over financial reporting was not effective based on the criteria in Internal Control Integrated Framework (2013) issued by the COSO.
A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. Effective internal control over financial reporting is necessary for us to provide reliable financial reporting. We continue to evaluate steps to remediate the material weakness. These remediation measures may be time consuming and costly and there is no assurance that these initiatives will ultimately have the intended effects.
If we are not able to comply with the requirements of the Sarbanes-Oxley Act or if we are unable to maintain effective internal control over financial reporting, we may not be able to produce timely and accurate financial statements or guarantee that information required to be disclosed by us in the reports that we file with the SEC, is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms. Any failure of our internal control over financial reporting or disclosure controls and procedures could cause our investors to lose confidence in our publicly reported information, cause the market price of our stock to decline, expose us to sanctions or investigations by the SEC or other regulatory authorities, or impact our results of operations.
We can give no assurance that the measures we are taking and plan to take in the future will remediate the material weakness identified or that any additional material weaknesses or restatements of financial results will not arise in the future due to a failure to implement and maintain adequate internal control over financial reporting or circumvention of these controls. In addition, even if we are successful in strengthening our controls and procedures,