Uranium Identified Resources (in situ)

Uranium 2020: Resources, Production and DemandTable 1.2b. Identified resources (in situ)**(as of 1 January 2019, tonnes U, rounded to nearest 100 tonnes)* Secretariat estimate. (a) Not reported in 2019 responses, data from previous Red Book. (b) Assessment partially made within the last five years. (c) Assessment not made within the last five years. (d) Recoverable resources were adjusted by the Secretariat to estimate in situ resources using recovery  factors provided  by  countries or  estimated  by  the Secretariat according to  the  expected  production method (Appendix 3). (e) Cost data not provided, therefore resources are reported in the <USD 260/kgU category. (f) Recovery factor change from previous report. (g) Totals related to cost ranges <USD 40/kgU and <USD 80/kgU should be regarded with some caution since certain countries do not report low-cost resource estimates, mainly for reasons of confidentiality, whereas other countries that have never, or notrecently hosted uranium mining, may be underestimating mining costs.

铀2020：资源、产量与需求
表1.2b. 确定资源（现场资源）**(截至2019年1月1日，吨铀，四舍五入至最接近的100吨)* 秘书处估算。(a) 2019年未报告的数据，来源于先前《红皮书》的数据。(b) 评估在最近五年内部分完成。(c) 评估在过去五年内未完成。(d) 秘书处根据各国提供的或根据预期生产方法估算的回收率（附录3），对可回收资源进行了调整以估算现场资源。(e) 未提供成本数据，因此资源报告在<USD 260/kgU类别中。(f) 回收率较前次报告有所变化。(g) 与成本范围<USD 40/kgU和<USD 80/kgU相关的总计应谨慎对待，因为某些国家未报告低成本资源估算，主要原因是保密，而其他从未或最近未举办铀矿开采的国家可能低估了采矿成本。