Unless otherwise indicated, mineralization quantities presented in this Annual Report on Form 10-K and in our other filings with securities regulatory authorities, press releases and other public statements that may be made from time to time are based upon estimates made by our personnel and independent professionals. In addition, these estimates depend upon geologic interpretation and statistical inferences drawn from drilling and sampling analysis available at the time of the estimate, and may change with further work.
Because we have not commenced commercial production at the Donlin Gold project, mineral resource estimates may require adjustments, including potential downward revisions based upon further exploration or development work, actual production experience, or changes in the price of gold. In addition, the grade of ore ultimately mined, if any, may differ from that indicated by drilling results. There can be no assurance that the percentage of minerals recovered in small-scale tests will be duplicated in large-scale tests under on-site conditions or at production scale.
Mineral resource estimates for mineral properties that have not commenced production are based, in many instances, on limited and widely spaced drill hole information, which is not necessarily indicative of the conditions between and around drill holes. Accordingly, such mineral resource estimates may require revision as more drilling information becomes available or as actual production experience is gained.
The estimating of mineral reserves and mineral resources is a subjective process that relies on the judgment and experience of the persons preparing the estimates. The process relies on the quantity and quality of available data and is based on knowledge, mining experience, analysis of drilling results and industry practices. Valid estimates made at a given time may significantly change when new information becomes available. There can be no assurances that actual results will meet the estimates contained in studies.
Estimated mineral reserves or mineral resources may have to be revised based on changes in metal prices, further exploration or development activity, or actual production experience. In addition, if production costs increase, recovery rates decrease, if applicable laws and regulations are adversely changed, there is no assurance that the anticipated level of recovery will be realized or that mineral reserves or mineral resources as currently reported can be mined or processed profitably. This could materially and adversely affect estimates of the volume or grade of mineralization, estimated recovery rates or other important factors that influence mineral reserve or mineral resource estimates. The extent to which mineral resources may ultimately be reclassified as mineral reserves is dependent upon the demonstration of their profitable recovery. Any material changes in mineral resource estimates and grades of mineralization will affect the economic viability of placing a mineral property into production and a mineral property's return on capital. We cannot provide assurance that mineral resources identified at the Donlin Gold project can or will be mined or processed profitably.
The mineral resource and mineral reserve estimates contained in this Annual Report on Form 10-K have been determined and valued based on assumed future prices, cut-off grades and operating costs that may prove to be inaccurate. Extended declines in market prices for gold may render portions of our mineral resource uneconomic and result in reduced reported mineral resources. Any material reductions in estimates of mineral resources, or of our ability to extract these mineral resources, could have a material adverse effect on our ability to implement our business strategy, the results of operations or our financial condition.
We have established the presence of proven and probable mineral reserves at the Donlin Gold project in accordance with the disclosure definition and standards contained in S-K 1300 and in NI 43-101. There can be no assurance that additional mineral resources will ultimately be reclassified as mineral reserves. The failure to increase mineral reserves could restrict our ability to successfully implement our strategies for long-term growth and could impact future cash flows, earnings, results of operation and financial condition.