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See also DefinitionsEnriched uranium: uUranium in which the 235U isotope concentration has been increased to greater than the 0.711 percent 235U (by weight)opresent in natural uranium. Low-enriched uranium (LEU) contains up to 19 percent U-235, whereas highly enrichedburanium (HEU) contains at least 20 percent U-235 and over 90 percent if used for nuclear weapons. Long-term contract: aOne or more deliveries to occur after a period of at least 6 years following contract execution. Spot-market price: xA transaction price concluded "on the spot," that is, on a one-time, prompt basis. The transaction usually involves onlyyone specific quantity of product. This contrasts with a term-contract sale price, which obligates the seller to deliver aBproduct at an agreed frequency and price over an extended period. Uranium: tA heavy, naturally radioactive, metallic element (atomic number 92). Its two principally occurring isotopes are 235Uwand 238U. The isotope 235U is indispensable to the nuclearindustry because it is the only isotope existing in nature touany appreciable extent that is fissionable by thermal neutrons. The isotope 238U is also important because it absorbsuneutrons to produce a radioactive isotope that subsequently decays to the isotope 239Pu, which also is fissionable bythermal neutrons. Uranium concentrate: qA yellow or brown powder produced from naturally occurring uranium minerals as a result of milling uranium ore orZprocessing uranium-bearing solutions. Synonymous with yellowcake, U3O8, or uranium oxide. Uranium hexafluoride (UF6): mA white solid obtained by chemical treatment of U3O8 and which forms a vapor at temperatures above 56 degreesLCentigrade. UF6 is the form of uranium required for the enrichment process. Uranium ore: tRock containing uranium mineralization in concentrations that can be mined economically, (typically 1 to 4 pounds of,U3O8 per ton or 0.05 to 0.20 percent U3O8). Uranium oxide: 8Uranium concentrate or yellowcake. Abbreviated as U3O8. Survey Methodology Survey DesignjThe 15th comprehensive survey of the U.S. uranium industry was conducted in 1999 by the Energy InformationtAdministration (EIA) using the "Uranium Industry Annual Survey," Form EIA-858. EIA collected data from all companiesyinvolved in the U.S. uranium industry, mailing the survey form to these firms in December 1998. The data reported in thisKpublication were developed from the 1998 survey and predecessor databases. rEIA asked respondents to the "Uranium Industry Annual Survey" to provide data current to the end of 1997 about the following: sUranium raw materials activities, including: land holdings, exploration and development activities, uranium-bearingqproperties and reserves, uranium mines, uranium processing facilities, and uranium industry employment in the rawmaterials sectoroUranium marketing activities, including contracts, contract prices and delivery schedules, uranium inventories,venrichment feed deliveries, unfilled market requirements, uranium used in fuel assemblies, and purchases of enrichment services.xThe data collected on Form EIA-858 are subject to various sources of error. These sources are: (1) coverage (the list of~respondents might not be complete or, on the other hand, there might be double counting); (2) non-response (all units that arezsurveyed might not respond or not provide all the information requested); (3) respondents (respondents might commit errorszin reporting the data); (4) processing (the data collection agency might omit or incorrectly transcribe a submission); (5)uconcept (the data collection elements might not measure the items they were intended to measure); and (6) adjustmentsz(errors might be made in estimating values for missing data). Because the "Uranium Industry Annual Survey" is not a samplesurvey, the estimates shown in this report are not subject to sampling error.1 Although it is not possible to present estimates{of nonsampling error, precautionary steps were taken at each stage of the survey design to minimize the possible occurrencetof these errors. The steps are described below, with the error they were designed to minimize shown in parenthesis. +Survey Universe and Frame (Coverage Errors)yThe survey universe includes all companies involved in the U.S. uranium industry. The universe includes all firms meetingone or more of the following criteria: (1) are controllers or were controllers during any portion of 1997, or are identified inxEIA records as the most recent controllers of uranium properties, mines, mills, or plant; (2) involved as controllers ofxuranium exploration and development ventures in the United States; (3) incurred uranium exploration expenditures in 1997{or plan such expenditures in 1998; (4) hold uranium reserves; (5) control uranium mining properties; (6) control commercialxuranium extraction operations; and (7) purchase, sell, held, or own domestic- or foreign-origin uranium; offered uraniumuenrichment services; imported or exported uranium; and (utilities only) purchased uranium enrichment services from anenrichment supplier. wThe respondent list used for the Form EIA-858 survey was developed from a frame of all establishments known to meet theuselection criteria. The frame of potential respondents was compiled from previous surveys and from information in thevpublic domain. The frame was intended to cover the following: all utilities owning nuclear-fueled generating stations;turanium converters, enrichers, and fuel fabricators; uranium traders and brokers; large and small companies actively{engaged in exploration, development, or extraction in the U.S. uranium industry; and companies holding all large propertiestwith uranium reserves. Companies meeting these criteria include: those involved in exploration, development, mining,xmilling, and trading of uranium; landowners; uranium converters, enrichers, and fabricators; and utilities with whole orIpartial ownership in operating or planned nuclear electric power plants. Survey Procedures (Nonresponse)The survey forms were sent via first class mail to ensure their receipt only by the proper respondent organization. If the U.S.qPostal Service was unable to deliver the survey form, the corrected address was obtained where possible. In a fewrinstances, businesses that had reported in earlier surveys were no longer operating. All known companies currentlyTconducting business in the U.S. uranium industry were contacted during this survey. vForm EIA-858, "Uranium Industry Annual Survey," requests data about many areas of company operations. The scope of theYquestions is necessarily broad, and self-reporting of company-specific data is required. uCooperation from industry on the 1997 survey was good. About 48 percent of respondents replied to the form within theuspecified deadline. Those that had not responded by the due date (March 1st for Schedules A and B) were telephoned to{encourage submission of the forms, and those calls resulted in the submission of most of the remaining forms. Subsequently,ttelephone calls were made to obtain forms not yet submitted. In a few instances, company data were collected throughtelephone conversations. IData Editing, Analysis, and Processing (Respondent and Processing Errors)tThe survey forms are logged in and reviewed by agency personnel prior to data entry into the Uranium Industry AnnualySystem, an automated database containing all current and historical data from each company's submissions. The database isymaintained on the EIA computer facility in Washington, DC. After entry into the database, a copy of each part of the FormtEIA-858 was distributed to the Analysis and Systems Division analyst responsible for that part. The submissions werevchecked for internal consistency, and the reported data were compared wit<h previous collections of similar data. Afteryreviewing these submissions, the analyst consulted with the reporting company, as needed, to resolve data problems and to%confirm any corrections of the data. sData areas that were reviewed and the corrections that were made differed from company to company. Most represented~different interpretations of the data item definitions. No data in the database were changed without first consulting with thetreporting company. Computer edits were also used to identify keypunch errors, out-of-range values, and unlikely data{combinations. These also were either corrected to represent the data reported on the submissions or were changed only afteruconfirming the corrected values by telephone conversations with company representatives. Data coding and entry errors[were eliminated by proofing data after entry. All changes to reported data are documented. Response RatestFor the 1997 Form EIA-858 survey, Schedule A,"Uranium Raw Materials Activities," was mailed to 46 firms and SchedulerB, "Uranium Marketing Activities," was mailed to 87 firms. Response statistics are shown in Table A1. Overall, 100|percent of the firms responded to EIA with the data as requested for the survey sections as applicable to individual firms. Missing Data|Some omissions of data were identified during the prescreening and editing of the data. Most omitted data elements fell intoztwo categories: particular data were unknown or inadvertent omissions. EIA contacted respondents to obtain omitted data orzto verify that they could not be reported. Only confirmed company-reported data are contained in the database and includedin this report. Data RevisionswThe Office of Coal, Nuclear, Electric and Alternate Fuels, Energy Information Administration, has adopted the following}policy for review and correction (revision) of data it collects and publishes. The policy covers revisions to prior publishedjdata. This new policy was initially implemented with the publication of the Uranium Industry Annual 1992. |1. Annual survey data are published either as preliminary or final when they first appear in a data report. Data released as}preliminary will be identified as such. When necessary, preliminary data will be revised and declared to be final at the nextpublication of that data. u2. Monthly and quarterly survey data are published initially as preliminary data. They will be revised only after theucompletion of the data collection cycle for the full 12-month survey period. Revisions will not be made to monthly or#quarterly data prior to this time. }3. The magnitude of historical data revisions experienced will be included in each data report to inform the reader about the accuracy of the data presented. y4. Revisions to data published as final will be made only in the event that newly available information would result in a~change to published data of more than than 1 percent at the national level. Revisions for changes of lesser magnitudes will be/made at the discretion of the Office Director. sAll data, except for uranium inventory data and uranium fuel assembly data, are published as final. Data on uraniumyinventories and fuel assemblies for the survey year are published as preliminary because survey respondents are requestedito make changes to their prior year data, if necessary, when reporting data for the current survey year. (NA)Number of mines operatedMine production-Exploration and development, surface drillingSYMBOLSED Data withheld to avoid disclosing figures for individual companies.NA Not available. Million feet- Represents zero.ETable 872. Uranium Concentrate (U3O8) Industry--Summary: 1990 to 2004 !"#$}[In millions of feet (1.7 represents 1,700,000), except as indicated. 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